Separate s processed NULL values in indexes

http://docs.Oracle.com/CD/B19306_01/server.102/b14220/schema.htm#i20690

Indices and null values

NULLthe index values are considered as distinct except when all non - NULL in two or several lines of an index, the values are the same, in which case the lines are regarded as the same. Therefore, UNIQUE i index prevents the lines containing NULL values to be treated as identical. This does not apply if there is not a no - NULL values - in other words, if the lines are fully NULL .

The bold part: who's trying to tell me that the lines for the NULL indexed lines, that if these indexed 2 NULL values maintain the same values for the rest of the line that oracle treats as unique to them?

That being said, the bold part is qualified with this statement:

Therefore, UNIQUE i index prevents the lines containing NULL values to be treated as the same.




In fact all this 2 average values in a single column being zero, with the rest of the line being exactly the same, is not treated as identical.


I'm sure that's what the DOC tries to explain.

Consider that you have a composit index SINGLE a two columns COL1 and COL2. And you want to insert some values like this

ROWNUM COL1, COL2
------- -------- --------
1 1 NULL
2 2 NULL
3 3 NULL
4 3 NULL

NULL values in the index are considered to be separate

This statement indicates that NULL in COL2 values are considered to be UNIQUE values. If the NULL in COL2 ROWNUM 1, 2 are considered to be two different values.

But the following statement

except in the case of all values not NULL in two or more rows of an index are the same, in this case, the lines are considered to be identical

This statement says ROWNUM 3, 4 for COL1, where they have identical values, where the NULL in COL2 value are not considered as UNIQUE values but as identical. That's why the 4 ROWNUM insert will fail with UNIQUE constraint violation.

Tags: Database

Similar Questions

  • Get Null value online by using the reference line.

    Hi guys,.

    I get the null value of the line everytime I use the reference line. Here is my code.

    String rowReference = pageContext.getParameter (OAWebBeanConstants.EVENT_SOURCE_ROW_REFERENCE);

    Line OARow = (OARow) am.findRowByRef (rowReference);

    System.out.println ("row" + Row);

    If (line! = null)

    {

    System.out.println ("Surfing");

    Object succObj = row.getAttribute ("INTERFACE_HEADER_ID");

    String succStr = succObj.toString ();

    throw new OAException ("" + succStr, OAException.INFORMATION);

    }

    Thank you

    I found workaround to get a current line like «($OA.» CURRENT. Id_interface)"as REFERENCE of the LINE does not work. I'm passing the parameter to my Textinputbean in the application of process method and by capturing the current values in the process of request form

    Treat the claim code

    Hashtable params = new Hashtable (1);

    params.put ("param1", pageName);

    Hashtable paramsWithBinds = new Hashtable (1);

    paramsWithBinds.put ("param2", new OADataBoundValueFireActionURL (oamessage, "{$INTERFACE_HEADER_ID}" ""));

    updateIcon.setFireActionForSubmit ("updateRecord", params, paramsWithBinds, false, false);

    Process form Code

    If ('updateRecord".equals (pageContext.getParameter (OAWebBeanConstants.EVENT_PARAM)))

    {

    System.out.println ("after" m "+ pageContext.getParameter ("param2")); / / give you current value as $OA. CURRENT. ID_INTERFACE

    }

  • Freeze frame layer twinkle in gamma (?) when following a null value

    I thought I solved the problem by changing the quality and sampling area, but there are still questions, including a slight deformation based on casual. Any suggestions? I tried rendering framework, and with that same question. If I unparent it to my null value, the layer is a freeze frame plain ol again. The first image is fine, the following conditions are significantly different. The circulation area is low and there is no motion blur. The Null value is animated in the Position, scale and Rotation. I tried to disable rotation and scale, the problem persists.

    I had the help of Robert Kjettrup, who suggested that the problem was due to the complexity of the noise in the particular image I've used. Keeping this aspect, he proposed to conceal the lack of precision with a separate (unprocessed) layer which has been re-grainy, then use a mask of track in the areas you will need to re-grain with this layer.

    I normally Denoise my images, but in this case I had left it the shot as he was, so I was not used to meet a problem like this. Thanks also to Rick Gerard for his help also.

  • NULL values and cardinality

    Hello Experts,

    I read a slide (five things you probably don't know about SQL) on the values NULL and the cardinality of Tom Kyte. He has demonstrated this indexed column with estimate cardinality evil cause NULL values. However, I do not understand why it causes the estimation of cardinality wrond? You have an idea?

    Party suite comes from the slide. Here's the proof, but is not written why.

    OPS$ % ORA11GR2 tkyte > create table t

    2 20 PCTFREE

    3 as

    4. Select a.*,

    5 case when mod(rownum,100) < = 50

    6 then last_ddl_time

    7 end end_date

    8 object;

    Table created.


    OPS$ % ORA11GR2 tkyte > create indexes t_idx

    2 on t (end_date);

    The index is created.


    OPS$ % ORA11GR2 tkyte > select count (*)

    2 t

    3 where end_date

    4 between to_date ('01 - sep - 2010 "," dd-mon-yyyy "")

    5 and to_date ('30-Oct-2010, ' mon-dd-yyyy "");

    COUNT (*)

    ----------

    36267


    OPS$ % ORA11GR2 tkyte > start

    DBMS_STATS.gather_table_stats 2 (user, 't');

    3 end;

    4.

    PL/SQL procedure successfully completed.


    OPS$ % ORA11GR2 tkyte > select count (*),

    2. count (distinct end_date)

    count (end_date) 3,.

    min (end_date) 4,

    5 max (end_date)

    6 t;

    CNT CNTD CNT2 MIN MAX

    ---------- ---------- ---------- --------- ---------

    72228 703 36850 1 OCTOBER 02 SEP 30.-11


    OPS$ % ORA11GR2 tkyte > set autotrace traceonly explain

    OPS$ % ORA11GR2 tkyte > select *.

    2 t

    3 where end_date

    4 between to_date (' 01-sep-2010', 'dd-mon-yyyy')

    5 and to_date ('30-Oct-2010, 'dd-mon-yyyy');

    Execution plan

    ----------------------------------------------------------

    Hash value of plan: 1601196873


    --------------------------------------------------------------------------

    | ID | Operation | Name | Lines | Bytes | Cost (% CPU). Time |

    --------------------------------------------------------------------------

    |   0 | SELECT STATEMENT |      | 36024 |  3588K |   339 (1) | 00:00:05 |

    |*  1 |  TABLE ACCESS FULL | T    | 36024 |  3588K |   339 (1) | 00:00:05 |

    --------------------------------------------------------------------------

    Information of predicates (identified by the operation identity card):

    ---------------------------------------------------

    1 Filter ("End_date" < = TO_DATE (' 2010-09-30 00:00:00 ',' syyyy-mm-dd '))

    HH24:MI:SS') AND 'End_date' > = TO_DATE (' 2010-09-01 00:00:00 ', ')

    'syyyy-mm-dd hh24:mi:ss"))


    OPS$ % ORA11GR2 tkyte > update t

    End_date set 2 =.

    3 to_date ('01 - jan - 9999',' mon-dd-yyyy "")

    4 where End_date is null;

    35378 lines to date.

    OPS$ % ORA11GR2 tkyte > commit;

    Validation complete.


    OPS$ % ORA11GR2 tkyte > start

    DBMS_STATS.gather_table_stats 2 (user, 't');

    3 end;

    4.

    PL/SQL procedure successfully completed.


    OPS$ % ORA11GR2 tkyte > select *.

    2 t

    3 where end_date

    4 between to_date ('01 - sep - 2010 "," dd-mon-yyyy "")

    5 and to_date ('30-Oct-2010, ' mon-dd-yyyy "");

    Execution plan

    -------------------------------------------------

    Hash value of plan: 470836197


    ---------------------------------------------------------------------------

    | ID | Operation | Name | Lines | Bytes | Cost (% CPU).

    ---------------------------------------------------------------------------

    |   0 | SELECT STATEMENT |       |   175. 18375 |    10 (0) |

    |   1.  TABLE ACCESS BY INDEX ROWID | T     |   175. 18375 |    10 (0) |

    |*  2 |   INDEX RANGE SCAN | T_IDX |   175 |       |     2 (0) |

    ---------------------------------------------------------------------------

    Information of predicates (identified by the operation identity card):

    ---------------------------------------------------

    1 Filter ("End_date" < = TO_DATE (' 2010-09-30 00:00:00 ',' syyyy-mm-dd '))

    HH24:MI:SS') AND 'End_date' > = TO_DATE (' 2010-09-01 00:00:00 ', ')

    'syyyy-mm-dd hh24:mi:ss"))



    Thanks in advance.

    Charlie

    Jonathan has hit it on the head.

    the index has nothing really to do with anything.

    See ask Tom: on queries to external tables, the consistency of data and nothing


    " NULL values and cardinality.


  • Add the Null value at the end of the collection layer

    I need to create layers at the end of the index of the layer and not at the beginning. Is this possible?

    app.project.compItem.layers.addNull () puts a layer at the beginning of the collection of objects, but it should be at the end. Maybe I could add the null value, then rearange the index?

    Like this:

    var myNull = myComp.layers.addNull ();

    myNull.moveToEnd ();

    Dan

  • test for the null value to IN request (null, 'a ', ' b', 'c')

    Hello

    Oracle 10.2.0.4

    I think the following query is incorrect, in my opinion. (there is an index on the collar, but NULL values are ignored?

    SELECT COUNT (*) < table > where col in (null, 'a ', ' b', 'c')

    It works (no errors) and forth fast enough.

    However, I think the correct query would

    SELECT COUNT (*) < table > where IS NULL or neck neck ('a', 'b', 'c')

    It takes a lot of time. As I see it, he performs a table scan for part of the value NULL and use the index for the rest, as the index cannot be used for NULL values.

    I would appreicate an explanation on this matter, particularly why Oracle accepts the first query "where col in (null, 'a ', ' b', 'c')" without any problem.

    Thank you

    A null value is not equal to what whatsoever, not even another null value. This is consistent with the definition of the ANSI. For your first request is not what you think it does, even if it is not syntactically incorrect.

    The second query is correct. If you want to use an index, you must create a bitmap index (which requires Enterprise Edition licenses), because they do not include the values NULL, unlike B * tree index.

  • CERTAIN behaviors, NULL values

    I am a little confused about the following situation:

    I have a PL/SQL code with a block similar to this:

    BEGIN
    SELECT MAX (col1)
    IN myVar
    FROM MyTable
    WHERE col1 < (SELECT MAX (col1) FROM MaTable;

    EXCEPTION
    WHEN NO_DATA_FOUND THEN
    myVar: < something > =;
    WHEN OTHERS RAISE.
    END;

    The behavior I expect from this is to assign a value to myVar, which is the next most great. value to the record value of col1.  If there is no record in myTable the NO_DATA_FOUND exception is thrown and myVar is filled with predetermined values.  Everything works fine execpt...

    When there is only one record stored in myTable, there is no exception raised and myVar is assigned to NULL.  I think that since there is only one line in the table there is no trace of return that meets the SELECTION criteria and therefore the NO_DATA_FOUND exception which is not the case here would be raised but myVar is assigned NULL and the program continues to flow from there.

    What is the problem with my way of thinking that the exception must be raised when there is a single record in myTable?

    Thank you.

    Documentation:

    A SELECT INTO statement returns no rows, or your program refers to an element deleted in a nested table or a component not initialized in an index - by table. Aggregate SQL such as AVG and SUM always functions return a value or a null value. As a result, a SELECT INTO statement that calls an aggregate function ever triggers NO_DATA_FOUND.

    That would be your MAX.

  • Report tamplate custom: null values is rendered in white-tank

    Greetings!

    In my sample report I used the substitution of strings with format #ENAME # inside the < b > - tags. In the report under the "page layout" and paging attributes value for 'See the Null values as' is left white, so that null values are not rendered in the tag. Still in the html code, they are rednered to the ' & nbsp;' html whitespace. "

    As arbitrarily as if turned column formatting to 'Standard report column' or 'View as Text (excape special characters)', if "strip HTML Tags" is selected or not.

    Does anyone know how this can be solved?

    Thanks for the help, best regards,.
    Tobi

    TobiP wrote:
    Hi College!

    My problem is this: when a whole line of html contains no value, it will be displayed to zero a hight - what I died for reasons of effectiveness of room. But when all the empty cells contain a white tank, I have some excessive areas in the picture.

    A record data is displayed above the rows of trees, the last of them extending over the entire table. For this last line, I bypassed conditional select wich

        (...)
    case when qmmUserNote is not null then
    'Anmerkung: ' || qmmUserNote || ''
    else null end                                             USERNOTE
    

    So if it is empty, the whole line is not at all, althou it is an invalid space character in markup (after the - end tag). Works fine in Firefox, but Internet Explorer moves this space-char excessive to the top of the table, so that for each empty line, it appears an extra row of white at the top.

    Same result when I write:

     (...)
    else '' end
    

    So to get around this extra white, I changed this last output in:

         case when qmmUserNote is not null then
    'Anmerkung: ' || qmmUserNote || ''
    else '' end                                             USERNOTE
    

    , which means that html tags most are transferred to the side of data operation, away from the model, that is simply not so nice and everything a bit messy.

    I suggest you spend the conditional processing in the model using models of conditional line based on PL/SQL expressions, as well as the last row is not out if qmmUserNote is null.

  • APEX 4.2 Radio Group NULL value behaves differently than on APEX 4.1.1

    DB version: 11.2.0.3 Linux
    APEX: 4.2
    APEX listener 1.1.4 on tomcat6
    Firefox 16.0.2

    Values NULL Radio Group behave differently than on APEX 4.1.1.
    4.2 creating radio group and selecting:
    Display Null value = Yes
    NULL, Display value = no value (or any string)
    NULL Return Value = (leave blank, for the NULL value returned)

    When the user selects that option 'No value', then APEX point value is set on "on", but on APEX 4.1, the element has the value NULL as expected.

    When you look at the Web page source code, the reason seems to be that APEX does not generate an attribute value for the NULL value (if the browser returns the default "on"):
    <input type="radio" id="P1_X_0" name="p_t01"  ><label for="P1_X_0">No value</label>

    Hi Ilmar,

    same thing here. The best solution I could come up with is to create a process to request again (before the calculation / validation)

    BEGIN
      FOR x IN (
           SELECT *
           FROM (
             SELECT item_name
             FROM apex_application_page_items aapi
             WHERE aapi.application_id = :app_id
             AND aapi.page_id = :app_page_id
             AND LOWER (aapi.lov_display_null) = 'yes'
             AND aapi.display_as_code='NATIVE_RADIOGROUP'
             AND aapi.lov_definition IS NOT NULL
             AND aapi.lov_null_value IS NULL
             AND ROWNUM > 0
        ) x
              WHERE LOWER (v (x.item_name)) = 'on'
      ) LOOP
        apex_util.set_session_state (x.item_name, NULL);
      END LOOP;
    END;
    

    Jens

  • CF10 active metrics logging but getting NULL values instead

    In an effort to troublshoot issues I'm having I activated the connection CFADMIN settings but this is what I see in the metrics.log file.  What gives?

    "Information","scheduler-1","11/13/13","15:59:54",,"Max threads: null Current thread count: null Current thread busy: null Max processing time: null Request count: null Error count: 21 Bytes received: null Bytes sent: null Free memory: 1737648152 Total memory: 2117206016 Active Sessions: 0"
    "Information","scheduler-1","11/13/13","16:00:54",,"Max threads: null Current thread count: null Current thread busy: null Max processing time: null Request count: null Error count: 21 Bytes received: null Bytes sent: null Free memory: 1565060456 Total memory: 2117206016 Active Sessions: 0"
    "Information","scheduler-3","11/13/13","16:01:54",,"Max threads: null Current thread count: null Current thread busy: null Max processing time: null Request count: null Error count: 21 Bytes received: null Bytes sent: null Free memory: 1634382744 Total memory: 2089222144 Active Sessions: 0"
    "Information","scheduler-2","11/13/13","16:02:54",,"Max threads: null Current thread count: null Current thread busy: null Max processing time: null Request count: null Error count: 21 Bytes received: null Bytes sent: null Free memory: 1532903104 Total memory: 2089222144 Active Sessions: 0"
    "Information","scheduler-0","11/13/13","16:03:54",,"Max threads: null Current thread count: null Current thread busy: null Max processing time: null Request count: null Error count: 21 Bytes received: null Bytes sent: null Free memory: 1371544704 Total memory: 2089222144 Active Sessions: 0"
    "Information","scheduler-2","11/13/13","16:04:54",,"Max threads: null Current thread count: null Current thread busy: null Max processing time: null Request count: null Error count: 21 Bytes received: null Bytes sent: null Free memory: 1193930792 Total memory: 2089222144 Active Sessions: 0"
    "Information","scheduler-3","11/13/13","16:05:54",,"Max threads: null Current thread count: null Current thread busy: null Max processing time: null Request count: null Error count: 21 Bytes received: null Bytes sent: null Free memory: 1749200240 Total memory: 2117664768 Active Sessions: 0"
    "Information","scheduler-3","11/13/13","16:06:54",,"Max threads: null Current thread count: null Current thread busy: null Max processing time: null Request count: null Error count: 21 Bytes received: null Bytes sent: null Free memory: 1614707664 Total memory: 2117664768 Active Sessions: 0"
    "Information","scheduler-2","11/13/13","16:07:54",,"Max threads: null Current thread count: null Current thread busy: null Max processing time: null Request count: null Error count: 21 Bytes received: null Bytes sent: null Free memory: 1485357392 Total memory: 2117664768 Active Sessions: 0"
    

    I found the answer here: ColdFusion 11 settings log NULL values. Chris Tierney

    Change the connector port in CFIDE (just underneath where you check "Enable logging of measures" to the one defined as the port of the AJP connector in server.xml - 8012 often.)  You need to restart coldfusion.

    Several ways to check a second time, I used

    grep - ir 'port connector' / opt/coldfusion10 /.

  • convert NULL values to 0

    Hi guys

    am on 10g

    I have a Table with 7 fields (all numbers).

    Basically, I'm looking for a way to convert NULL values to 0 [zero], a process, a client wants.

    So no matter how the Table is large, that I must be able to do, what is the best way to do this? Example SQL? PL/SQL?

    Thank you.

    Using NVL?

    SQL> select nvl(null, '0') from dual;
    
    N
    -
    0
    
    1 row selected.
    

    NULL for all related functions:
    http://www.Oracle-base.com/articles/Misc/NullRelatedFunctions.php

  • Treatment of Null values from database

    Hi all

    I created a form very simple record insertion using dreamweaver for an online store.

    According to some products, a field can be left blank. Problem is when I try and treat this this course comes with an error. "The 'colour_1' column cannot be null.

    How can I ignore it for some fields. And this creates a security risk?

    Please find the below coding.

    See you soon

    Tom

    <? php require_once('.. /.. / Connections/connProduct.php');? >

    <? PHP

    If (! function_exists ("GetSQLValueString")) {}

    function GetSQLValueString ($theValue, $theType, $theDefinedValue = "", $theNotDefinedValue = "")

    {

    If (via PHP_VERSION < 6) {}

    $theValue = get_magic_quotes_gpc()? stripslashes ($TheValue): $theValue;

    }


    $theValue = function_exists ("mysql_real_escape_string")? mysql_real_escape_string ($TheValue): mysql_escape_string ($theValue);


    Switch ($theType) {}

    case 'text ':

    $theValue = ($theValue! = "")? « " ». $theValue. "" "": "NULL";

    break;

    case "long":

    case "int":

    $theValue = ($theValue! = "")? intval ($TheValue): 'NULL ';

    break;

    case "double":

    $theValue = ($theValue! = "")? doubleVal ($TheValue): 'NULL ';

    break;

    case "date":

    $theValue = ($theValue! = "")? « " ». $theValue. "" "": "NULL";

    break;

    case "set":

    $theValue = ($theValue! = "")? $theDefinedValue: $theNotDefinedValue;

    break;

    }

    Return $theValue;

    }

    }


    $editFormAction = $_SERVER ['PHP_SELF'];

    If (isset {}

    $editFormAction. = « ? ». htmlentities($_SERVER['QUERY_STRING']);

    }


    If ((isset($_POST["MM_insert"])) & & ($_POST ["MM_insert"] == "form1")) {}

    $insertSQL = sprintf ("INSERT INTO product (product_ID, product_Name, product_Title, product_Height, product_Width, extra_Info, product_Price, delivery_Price, colour_1, colour_2, colour_3, colour_4, colour_5, colour_6, colour_7) VALUES (%s, %s %s %s, %s, %s, %s, %s, %s, %s, %s, %s, %s, %s, %s)", ")

    GetSQLValueString ($_POST ['product_ID'], "int").

    GetSQLValueString ($_POST ["'product_Name"], "text").

    GetSQLValueString ($_POST ['product_Title'], "text").

    GetSQLValueString ($_POST ['product_Height'], "text").

    GetSQLValueString ($_POST ['product_Width'], "text").

    GetSQLValueString ($_POST ['extra_Info'], "text").

    GetSQLValueString ($_POST ['product_Price'], "text").

    GetSQLValueString ($_POST ['delivery_Price'], "text").

    GetSQLValueString ($_POST ['colour_1'], "text").

    GetSQLValueString ($_POST ['colour_2'], "text").

    GetSQLValueString ($_POST ['colour_3'], "text").

    GetSQLValueString ($_POST ['colour_4'], "text").

    GetSQLValueString ($_POST ['colour_5'], "text").

    GetSQLValueString ($_POST ['colour_6'], "text").

    GetSQLValueString ($_POST ['colour_7'], "text"));


    @mysql_select_db ($database_connProduct, $connProduct);

    $Result1 = mysql_query ($insertSQL, $connProduct) or die (mysql_error ());


    $insertGoTo = 'index.php ';

    If (isset {}

    $insertGoTo. = (strpos ($insertGoTo, '?'))? « & » : « ? » ;

    $insertGoTo. = $_SERVER ['QUERY_STRING'];

    }

    header (sprintf ("location: %s", $insertGoTo));

    }


    @mysql_select_db ($database_connProduct, $connProduct);

    $query_rsProduct = "SELECT * FROM lanterns.

    $rsProduct = mysql_query ($query_rsProduct, $connProduct) or die (mysql_error ());

    $row_rsProduct = mysql_fetch_assoc ($rsProduct);

    $totalRows_rsProduct = mysql_num_rows ($rsProduct);

    ? >

    <! DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional / / IN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd" > ""

    " < html xmlns =" http://www.w3.org/1999/xhtml ">

    < head >

    < meta http-equiv = "Content-Type" content = text/html"; Charset = UTF-8 "/ >"

    < title > Untitled Document < /title >

    < / head >


    < body > < form action = "" method = "get" > < / make > "

    < do action = "<?" PHP echo $editFormAction;? ">" method = "post" name = "form1" id = "form1" >

    < table align = "center" >

    < tr valign = 'of basic">

    < td nowrap = "nowrap" align = "right" > product name: < table >

    < td > < input type = "text" name = 'product_Name' value = "" size = "32" / > < table > "

    < /tr >

    < tr valign = 'of basic">

    < td nowrap = "nowrap" align = "right" > product title: < table >

    < td > < input type = "text" name = "product_Title" value = "" size = "32" / > < table > "

    < /tr >

    < tr valign = 'of basic">

    < td nowrap = "nowrap" align = "right" > product height: < table >

    < td > < input type = "text" name = "product_Height" value = "" size = "32" / > < table > "

    < /tr >

    < tr valign = 'of basic">

    < td nowrap = 'nowrap' align = 'right' > the product width: < table >

    < td > < input type = "text" name = "product_Width" value = "" size = "32" / > < table > "

    < /tr >

    < tr valign = 'of basic">

    < td nowrap = "nowrap" align = "right" > additional Info: < table >

    < td > < input type = "text" name = "extra_Info" value = "" size = "32" / > < table > "

    < /tr >

    < tr valign = 'of basic">

    < td nowrap = "nowrap" align = "right" > product price: < table >

    < td > < input type = "text" name = "product_Price" value = "" size = "32" / > < table > "

    < /tr >

    < tr valign = 'of basic">

    < td nowrap = "nowrap" align = "right" > delivery price: < table >

    < td > < input type = "text" name = "delivery_Price" value = "" size = "32" / > < table > "

    < /tr >

    < tr valign = 'of basic">

    < td nowrap = "nowrap" align = "right" > color 1: < table >

    < td > < input type = "text" name = "colour_1" value = "" size = "32" / > < table > "

    < /tr >

    < tr valign = 'of basic">

    < td nowrap = "nowrap" align = "right" > color 2: < table >

    < td > < input type = "text" name = "colour_2" value = "" size = "32" / > < table > "

    < /tr >

    < tr valign = 'of basic">

    < td nowrap = "nowrap" align = "right" > color 3: < table >

    < td > < input type = "text" name = "colour_3" value = "" size = "32" / > < table > "

    < /tr >

    < tr valign = 'of basic">

    < td nowrap = "nowrap" align = "right" > 4 color: < table >

    < td > < input type = "text" name = "colour_4" value = "" size = "32" / > < table > "

    < /tr >

    < tr valign = 'of basic">

    < td nowrap = "nowrap" align = "right" > 5 color: < table >

    < td > < input type = "text" name = "colour_5" value = "" size = "32" / > < table > "

    < /tr >

    < tr valign = 'of basic">

    < td nowrap = "nowrap" align = "right" > 6 color: < table >

    < td > < input type = "text" name = "colour_6" value = "" size = "32" / > < table > "

    < /tr >

    < tr valign = 'of basic">

    < td nowrap = "nowrap" align = "right" > 7 color: < table >

    < td > < input type = "text" name = "colour_7" value = "" size = "32" / > < table > "

    < /tr >

    < tr valign = 'of basic">

    < td nowrap = "nowrap" align = "right" > < table >

    < td > < input type = "submit" value = "Insert file" / > < table >

    < /tr >

    < /table >

    < input type = "hidden" name = "lantern_ID" value = "" / > "

    < input type = "hidden" name = "MM_insert" value = "form1" / >

    < / make >

    < p > < / p >

    < / body >

    < / html >

    <? PHP

    mysql_free_result ($rsProducts);

    ? >

    Thread has been moved to the Dreamweaver application development forum, which deals with PHP and other issues aside server.

    sellador315 wrote:

    According to some products, a field can be left blank. Problem is when I try and treat this this course comes with an error. "The 'colour_1' column cannot be null.

    How can I ignore it for some fields. And this creates a security risk?

    In your database, change the definition of the column in which you might want to leave it empty with null. You can do this easily in phpMyAdmin by selecting the column you want to change on the Structure tab and clicking Change icon. Then select the Null checkbox, as shown in this screenshot:

    Allowing a column store null values is not a security risk.

  • How to set a cell to accept null values.

    Hello;

    I'm having a problem with my request for insertion. My shape, past year (2010 and more) as a null value. I use access (ugg) and I can't accept this value null. I tried setting required in no. and allow a length zero, even removed from the table and he again... STILL, I get this error:

    Run database query error.

    [Macromedia] [SequeLink JDBC Driver] [ODBC Socket] [Microsoft] [ODBC Microsoft Access driver] Numeric value out of range (null)The error occurred in C:\Websites\187914kg3\accManage\signUp.cfm: line 234
    Called from C:\Websites\187914kg3\accManage\signUp.cfm: line 206
    Called from C:\Websites\187914kg3\accManage\signUp.cfm: line 204
    Called from C:\Websites\187914kg3\accManage\signUp.cfm: line 4
    Called from C:\Websites\187914kg3\accManage\signUp.cfm: line 1
    Called from C:\Websites\187914kg3\accManage\signUp.cfm: line 234
    Called from C:\Websites\187914kg3\accManage\signUp.cfm: line 206
    Called from C:\Websites\187914kg3\accManage\signUp.cfm: line 204
    Called from C:\Websites\187914kg3\accManage\signUp.cfm: line 4
    Called from C:\Websites\187914kg3\accManage\signUp.cfm: line 1

    232 :         <cfqueryparam cfsqltype="CF_SQL_INTEGER" value="#form.securitCode#">,
    233 :         <cfqueryparam cfsqltype="CF_SQL_INTEGER" value="#form.ExpirationMonth#">,
    234 :         <cfqueryparam value="#FORM.ExpirationYear#" cfsqltype="CF_SQL_VARCHAR">)
    235 : </cfquery>
    236 : 
    


    SQLSTATE22003
    SQLINSERT INTO MerchandiseOrdersItems (c_ID, cc_type cc_num, cc_verify, cc_expir_m, cc_expir_y) VALUES ((param 1), (param 2), (param 3), (param 4), (param 5), (param 6))
    VENDORERRORCODE

    3


    It's my form element and the query that is the source of the problem:


    < name cfparam = "FORM. Default ExpirationYear"=" ">

    < form >

    < select name = "ExpirationYear" class = 'formSelect' >
    < cfloop index "i" = from = "" #VARIABLES.y1 # "to =" #VARIABLES.y2 # ">"
    < option value = "#i #" < cfif FORM. ExpirationYear EQ I > selected < / cfif > > #NumberFormat (i, "0000") # < / option >
    < / cfloop >
    < / select >

    < / make >

    < datasource = "" #APPLICATION.dataSource # cfquery "dbtype ="ODBC">"
    INSERT INTO MerchandiseOrdersItems
    (c_ID cc_type cc_num, cc_verify, cc_expir_m, cc_expir_y)
    VALUES (< cfqueryparam value = "" #getUpdate.NewID # "cfsqltype =" CF_SQL_VARCHAR">,)
    < cfqueryparam cfsqltype = "cf_sql_varchar" value = "#form.creditType #" >.
    < cfqueryparam cfsqltype = "CF_SQL_LONGVARCHAR" value = "#form.creditCard #" >.
    < cfqueryparam cfsqltype = "CF_SQL_INTEGER" value = "#form.securitCode #" >.
    < cfqueryparam cfsqltype = "CF_SQL_INTEGER" value = "#form. ExpirationMonth #">,"
    < cfqueryparam value = '#FORM. ("ExpirationYear #" cfsqltype = "CF_SQL_VARCHAR" null = "yes" >)
    < / cfquery >

    The string that is the slightest error is the following:

    < cfqueryparam value = '#FORM. "ExpirationYear #" cfsqltype = "CF_SQL_VARCHAR" >

    I still get this error. SO there must be something inside the access database does not allow this value null. It is defined as text now, allowing a length null and useless.

    Can someone help me please?

    If you open the database in Access and go to design view for the table in question and look at the definition of this field, what are the settings for 'necessary' and ' allow a length zero "?

    -reed

  • FTS by select as NOT NULL values

    Hello

    My version of Oracle is 10.2.0.3.0.

    I'm shot under SQL in the database, this SQL is a FTS during the race.

    SELECT *.
    Table_name FROM
    WHERE id_number IS NULL;

    Pease see below for the nature of the existing data in the table.

    SQL > select count (*) from table_name where id_number is null;

    COUNT (*)
    ----------------
    1456

    SQL > select count (*) from table_name;

    COUNT (*)
    ----------------
    9392730

    However, there is an index on the column id_number and the SQL where clause (where id_number is null) picks up only 0.1% of the rows in the table. Although SQL is a FTS on the table table_name. Is there a way I can remove this execute SQL FTS.

    Thanks in advance.

    Best regards
    oratest

    oratest wrote:
    Means there is no another way/workaround to grant this SQL? :(

    Major responses in this thread.

    If you change the SQL statement or set up a bitmap index (not a good choice index if the table is subject to frequent changes), there is another solution. I think I've seen this approach on the blog of Richard Foote:
    http://richardfoote.WordPress.com/2008/01/23/indexing-nulls-empty-spaces/

    Here's a sample:

    CREATE TABLE T1(
      C1 NUMBER NOT NULL,
      C2 VARCHAR2(50) NOT NULL,
      C3 NUMBER,
      C4 VARCHAR2(300));
    
    INSERT INTO T1
    SELECT
      ROWNUM,
      TO_CHAR(ROWNUM,'0000000')||'A',
      DECODE(MOD(ROWNUM,1000),0,NULL,ROWNUM),
      LPAD('A',300,'A')
    FROM
      (SELECT
        ROWNUM RN
      FROM
        DUAL
      CONNECT BY
        LEVEL <= 1000) V1,
      (SELECT
        ROWNUM RN
      FROM
        DUAL
      CONNECT BY
        LEVEL <= 1000) V2;
    
    CREATE INDEX IND_T1_C3 ON T1(C3);
    
    EXEC DBMS_STATS.GATHER_TABLE_STATS(OWNNAME=>USER,TABNAME=>'T1',CASCADE=>TRUE)
    

    The foregoing has created a ranking table 1 000 000, where 1 of 1,000 rows contains a NULL value. An index has been created and then on the table, and the statistics have been updated.

    Now the first test:

    SET AUTOTRACE TRACEONLY EXPLAIN
    
    SELECT
      COUNT(*)
    FROM
      T1
    WHERE
      C3 IS NULL;
    
    Execution Plan
    ----------------------------------------------------------
    Plan hash value: 3724264953
    
    ---------------------------------------------------------------------------
    | Id  | Operation          | Name | Rows  | Bytes | Cost (%CPU)| Time     |
    ---------------------------------------------------------------------------
    |   0 | SELECT STATEMENT   |      |     1 |     5 | 10994   (2)| 00:00:45 |
    |   1 |  SORT AGGREGATE    |      |     1 |     5 |            |          |
    |*  2 |   TABLE ACCESS FULL| T1   |  2000 | 10000 | 10994   (2)| 00:00:45 |
    ---------------------------------------------------------------------------
    
    Predicate Information (identified by operation id):
    ---------------------------------------------------
       2 - filter("C3" IS NULL)
    

    Note that the index is not used. A second test with a slightly modified definition of the index:

    CREATE INDEX IND_T1_C3_NULL ON T1(C3,' ');
    
    EXEC DBMS_STATS.GATHER_INDEX_STATS(OWNNAME=>USER,INDNAME=>'IND_T1_C3_NULL')
    
    SELECT
      COUNT(*)
    FROM
      T1
    WHERE
      C3 IS NULL;
    
    Execution Plan
    ----------------------------------------------------------
    Plan hash value: 265035506
    
    ------------------------------------------------------------------------------------
    | Id  | Operation         | Name           | Rows  | Bytes | Cost (%CPU)| Time     |
    ------------------------------------------------------------------------------------
    |   0 | SELECT STATEMENT  |                |     1 |     5 |    25   (0)| 00:00:01 |
    |   1 |  SORT AGGREGATE   |                |     1 |     5 |            |          |
    |*  2 |   INDEX RANGE SCAN| IND_T1_C3_NULL |  2000 | 10000 |    25   (0)| 00:00:01 |
    ------------------------------------------------------------------------------------
    
    Predicate Information (identified by operation id):
    ---------------------------------------------------
       2 - access("C3" IS NULL)
    

    This time notice that the special index was used without having to change the SQL statement.

    Charles Hooper
    Co-author of "Expert Oracle practices: Oracle Database Administration of the Oak Table.
    http://hoopercharles.WordPress.com/
    IT Manager/Oracle DBA
    K & M-making Machine, Inc.

  • NULL values in the numeric columns in flat files

    Some of my sources are flat files that sometimes have NULL values mixed with numbers in numeric columns that are part of the key. Of course causing incompatibilities over the insertion/development integration process to date. Which, if any, is the best way to 'ODI' to change NULL values to zeroes before the integration process?

    Thank you!

    Its hard to create constraints or checks on the models of flat file.
    Thus, the way that we do, load us the flat files to the raw tables that look 100% like flat files and then perform these transformations or checks on them.
    After that, they are loaded on the target system.

Maybe you are looking for

  • Basic and unknown system in Device Manager device

    Hello!! (Everyone here is awesome btw... thank you so much for the help!) I have two unknowns in the Device Manager. Base system device PCI\VEN_197B & DEV_2392 & SUBSYS_161C103C & REV_30 PCI\VEN_197B & DEV_2392 & SUBSYS_161C103C PCI\VEN_197B & DEV_23

  • TypeLoadException crossed native/managed

    GenericArguments [1], ' NationalInstruments.Controls.Primitives.GraphDataCollectionDescriptor'1 [NationalInstruments.Controls.ChartCollection'2 [System.Double, System.Double]] ',' NationalInstruments.Controls.Internal.DescriptorHelper + MultiDimensio

  • Lost my red button '' mouse. ''

    Where to find a "red mouse" button replacement for R61i

  • More than 54% on my sony vio laptop battery!

    Similar experiences / solutions please?

  • Windows live mail, message 0x800ccc19 error

    I can't send or receive mail because I keep getting error messages, how do I solve this problem?  I only am not computer savvy so layman terms please.  Thank you. This is the message: Can't send or receive messages on behalf of Roadrunner (xxx). A ti