Ore.Create () creates a numeric columns as binary_double instead of the number
When you create a table of a data.frame database using the function ore.create () R, the packaging of ore, all numeric columns in the database are stored as a double binary. Some algorithms, such as the importance of the attribute, do not work with this type of columns it is therefore necessary to convert these columns of type number. It is possible with the to_number() command and is not a problem when there are a small number of columns. But what happens if there are 200 columns to convert?
Is it possible, from the beginning, when you create a data.frame database table to define the column as a number?
The function dbWriteTable in package ROracle contains an argument, ora.number, which can be used other BINARY_DOUBLE and NUMBER:
dbWriteTable (name, value, conn, row.names = FALSE, overwrite = FALSE, append = FALSE, ora.number = TRUE, schema = NULL,...)
ORA. Number: a logical value indicating whether to create a table with
Oracle 'NUMBER' or the 'BINARY_DOUBLE' columns when writing
digital data. Specify "TRUE" to create a table with Oracle
«NUMBER» values or specify 'FALSE' to create a table with
Values of 'BINARY_DOUBLE' Oracle. The default value is 'TRUE '.
Specify "FALSE" if one or more of the values of digital data is
"NaN".
Here is an example of use of iris integrated r data:
> library (ROracle)
Loading package perl: DBI
> drv<->->
> conn<- dbconnect(drv,="" username="" ,="" password="">->
dbname = "localhost / DB: sid ')
> dbWriteTable (conn, "IRIS", iris, ora.number = FALSE)
I created an enhancement request to have this feature added to the ore to create the feature in a future release.
Sherry
Tags: Business Intelligence
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Column data reading according to the number of lines
Hi guys,.
I am currently stuck on the problem of recovering the data from my database (MS Access) according to the number of lines, he has at any time (without having to know how many lines there will be during the programming of this part).
First, I show how my program works. I'm working on an automated food, order and after the customer has chosen his power, system information such as the name of the food, quantity and price of the food will be written to the MS Access database table. (for example table name "Orderingtable" in MS Access) For my case, 1 order of food will occupy 1 line of the database table. In other words, as part of the same, if he orders 3 different foods, 3 rows will be filled in my database table.
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Is it possible that I can get the part of the 'quantity' without having to know the number of rows in the database so that I can count the total number of pending orders just by adding up the value of the quantity for each line?
I do not wish to "code" my program by limiting the tables of database for us are going to say, only 50 lines at any time.
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I hope that you are able to help me!
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You can also use the SUM function:
SELECT SUM (Quantity) OF the order WHERE Queue_No = %d
And no need of an "Order By" clause, if you add just the quantities.
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Creating a view using multiple joins - by reducing the number of output lines
It is difficult to put into words exactly what I want to implement, so I'll just use an example. Let's say I have the following database:
game (id, time, place)
Reader (game_id, name)
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Foreign keys:
Player (game_id) references game (id)
Referee (game_id) references game (id)
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I want to create the following view:
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It's easy to create this view with the following output:
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Game1, 15:00, player1, Referee2
Game1, 15:00, player2, Referee1
Game1, 15:00, player2, Referee2
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Whenever you have a problem, please post CREATE TABLE and INSERT statements for your sample data. Sinve it's your first post, I'll do it for you:
CREATE TABLE game ( id VARCHAR2 (10) PRIMARY KEY , time VARCHAR2 (10) --, location VARCHAR2 (10) -- No need to include columns that play no role in this problem ); INSERT INTO game (id, time) VALUES ('Game 1', '3PM'); INSERT INTO game (id, time) VALUES ('Game 2', '8AM'); CREATE TABLE player ( game_id VARCHAR2 (10) , name VARCHAR2 (10) ); INSERT INTO player (game_id, name) VALUES ('Game 1', 'Player 1'); INSERT INTO player (game_id, name) VALUES ('Game 1', 'Player 2'); INSERT INTO player (game_id, name) VALUES ('Game 1', 'Player 3'); INSERT INTO player (game_id, name) VALUES ('Game 2', 'Player 1'); CREATE TABLE referee ( game_id VARCHAR2 (10) , name VARCHAR2 (10) ); INSERT INTO referee (game_id, name) VALUES ('Game 1', 'Referee 1'); INSERT INTO referee (game_id, name) VALUES ('Game 1', 'Referee 2'); INSERT INTO referee (game_id, name) VALUES ('Game 2', 'Referee 1'); INSERT INTO referee (game_id, name) VALUES ('Game 2', 'Referee 2');
In this way, people who want to help you can recreate the problem and test their ideas.
In addition, to say what version of Oracle you are using. The following query will work in Oracle 9.1 or more.
What you asked is what I call a Query, fixed-price , and this is a way to do it:
WITH player_plus AS ( SELECT game_id , name , ROW_NUMBER () OVER ( PARTITION BY game_id ORDER BY name ) AS r_num FROM player ) , referee_plus AS ( SELECT game_id , name , ROW_NUMBER () OVER ( PARTITION BY game_id ORDER BY name ) AS r_num FROM referee ) SELECT g.id , g.time , p.name AS player_name , r.name AS referee_name FROM player_plus p FULL OUTER JOIN referee_plus r ON p.game_id = r.game_id AND p.r_num = r.r_num JOIN game g ON g.id = COALESCE (p.game_id, r.game_id) ORDER BY g.id , COALESCE (p.r_num, r.r_num) ;
Output:
ID TIME PLAYER_NAM REFEREE_NA ---------- ---------- ---------- ---------- Game 1 3PM Player 1 Referee 1 Game 1 3PM Player 2 Referee 2 Game 1 3PM Player 3 Game 2 8AM Player 1 Referee 1 Game 2 8AM Referee 2
I see that you have more arbitrators than players in a game. If such was not the case, then you might make it a bit more efficient using a LEFT OUTER JOIN between p and r, rather than a FULL OUTER JOIN, and you can also use only the columns of p where I use COALESCE.
Published by: Frank Kulash, March 9, 2012 18:15
Fixed spelling -
Create a table in a loop 'for' (reset the number of loops)
Hello
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I understand that to achieve integration, a table must be fed in. My problem is that I could not buffer the signal in a buffer block, as I couldn't find buffer blocks. so I decided to create my data table by using a loop "for". The nests of the loop 'for' inside a timed loop. The problem that I'm stuck on is how to reset the loop 'for' in order to fill the buffer with each iteration of the outer loop timed.
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If anyone who has encountered a similar problem before can help me, I would be gratefull.
Concerning
Ali
You can use a shift register initialized as inputs to your curls, to build your table of one. However, you realize, don't you, that the execution of your program as written loops as soon as the computer can spit out responses, then the output array may contain several points that took place before the entry has updated? Assuming that your thing cRIO (I've not worked with these) has integrated into its routine acquisition of calendar data, I suggest you put that inside the loop to get a data point by reading.
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Dear friends of the APEX,
I'm developing an interactive report and you want to have in it a clean column with links instead of the standard "pencil" - column.
I explain it by the example of https://apex.oracle.com/pls/apex/f?p=81683:1:
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My idea was to change the type of column "Deptno" of plain text to link.
But, unfortunately, when I did in the pictures Page and save the modified Page Builder type column to return to 'plain text '.
Anyone here know, what I did wrong?
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Franck wrote:
I'm developing an interactive report and you want to have in it a clean column with links instead of the standard "pencil" - column.
I explain it by the example of https://apex.oracle.com/pls/apex/f?p=81683:1:
I want that "Deptno" column had links with the viewer just as single line "pencil" - column a.
Why would you do?
My idea was to change the type of column "Deptno" of plain text to Link.
If unique lines are not identified using a PK column, add ROWID to the projection of the report query and set the Type of this column to hidden column.
Set the Type of the DEPTNO column on link, the link target #, #DEPTNO #and attributes of link to link text class = 'a-IRR-detail-row' data-line-id = "" #ROWID # "." Replace "ROWID" with the PK column name when unique lines are identified with a single column value. Save the changes.
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Anyone here know, what I did wrong?
You changed the type of column 'Link' but did not enter the other properties needed to operate it as a link.
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Help formula: count the number of whites in a column "up to the...» »
name string metric Matthew 5 brand 1 brand optimusPrime brand Luke 2 Matthew jamesLikesSteak John 3 Luke lukingGood Matthew Luke John johnnyPop John Hey guys - so I do business with a bit of a problem in number. I have a number table - the table above is a simplified representation of the corresponding parts of the table. The left column 'name' is a series of 12 names repeated and 0 missing values. The "string" middle column is a column that has a lot of missing values by a formula based on another column that is not relevant to this problem. Who is not missing is all strings. The problem I have is in the 'metric ': right column
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= IF (B2 = "", COUNTBLANK(B2:B9), "")
This formula produces the correct number for the first row of data (5), but it does not dynamically fulfill what I'm trying to do this since I am currently having the formula to find the next blank 'chain' that occur next to "name" in the formula line.
I hope that someone has encountered anything like this before. I tried to go through all the functions and numbers from formulas, but so far I have not found much success.
Hi BaronDe,
I need to ask, "why you try to do this? So what you want is possible it will be a complex solution. It may be much easier to get your information in a different way. Indicate these blanks?
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Quinn
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I want to create a 2 cells in demand for numbers, the 1st cell is a dropdown menu with items of text, when choosing an item, that it would be represented by a numeric value in the other cell. How can I do?
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(1) crate a table like this:
the first line is a heading row
the first column contains the same list of items in the context menu
the second column contains the corresponding values
name of the table 'value '.
In another table (where the pop-up menu), you can use the table of choice of 'Value' like this:
create a drop-down list in cell B1
Select cell C1 and type (or copy and paste) the formula:
= VLOOKUP (B1, Value::A:B, 2, 0)
short hand for this is:
C1 = VLOOKUP (B1, Value::A:B, 2, 0)
now change the pop-up to display the value in the change of cell C1
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I have a column with two values, separated by a space, in each line. How do I create 2 new columns with the first value in one column and the second value in another column?
Add two new columns after than the original with space separated values column.
Select cell B1 and type (or copy and paste it here) the formula:
= IF (Len (a1) > 0, LEFT (A1, FIND ("", A1) −1), ' ')
shortcut for this is:
B1 = if (Len (a1) > 0, LEFT (A1, FIND ("", A1) −1), ' ')
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or
the formula of the C1 could also be:
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Select cells B1 and C1, copy
Select cells B1 at the end of the C column, paste
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Why can't I create a table or a column whose name begins with a number?
Why can't I create a table or a column whose name begins with a number? I can't seem to find an answer when I Googled it.
Thank you
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Hello
jimmy437 wrote:
Why can't I create a table or a column whose name begins with a number? I can't seem to find an answer when I Googled it.
Thank you
Yoann
You can; Simply enclose it quotation marks name whenever you use it.
For example:
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(
'name 1' VARCHAR2 (10)
);INSERT INTO '3-26' ('1 St Name') VALUES ('FUBAR');
SELECT '1 name '.
"3-26;Remember, what inside quotes is case-sensitive, so you can't refer to that column as "1st NAME.
Using quotation marks (and capitalizing exactly as expected) is such a pain that most people don't bother.
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Ore.Create does not? @ ORE 1.3.1
More documentation on ore v1.3.1 @ = Use Oracle Enterprise of R
I can't reproduce the example of loading in a data table. In the Act, the table is created (I can query from within the db) but I can't see it as an object in my environment... where head (), class (), etc... functions do not work correctly.
R > version
_
platform x86_64-unknown-linux-gnu
x86_64 Arch
linux-gnu operating system
x86_64 system, linux-gnu
status
2 large
15.2 minor
year
month
Day
SVN rev unknown
R language
version. String Oracle Distribution of R version 2.15.2 (-)
Pseudo Trick or Treat
R > df <-data.frame (A = 01:26, B = letters [1:26])
R > head (df)
A AND B
1 1 a
2 2 b
3 3 c
4 d 4
5 5 e
6 6 f
R > Sun (df)
[1] 26 2
> class (df)
[1] "data.frame".
R > ore.create (df, table = "DF_TABLE")
R > ore.ls)
[1] "DF_TABLE".
R > class (DF_TABLE)
Error: object "DF_TABLE" not found
R > head (DF_TABLE)
Error in head (DF_TABLE):
error in the assessment of the argument 'x' in the selection of a method for function 'head': error: object "DF_TABLE" not foundIncorrect documentation or is it possible that I missed something?
Thank you
Hi Fernando,
Missing documentation 2 steps. See comments below
R > df<- data.frame(a="1:26," b="">->
R > ore.create (df, table = "DF_TABLE")
R > ore.sync (sync) of # DF_TABLE with local session of R
R > ore.attach () # DF_TABLE join the search path
R > head (DF_TABLE)
A AND B
1 1 a
2 2 b
3 3 c
4 d 4
5 5 e
6 6 f
Warning messages:
1: object of ore has no unique key - using a random order
2: object of ore has no unique key - using a random order
For more information, see the help files for these functions.
? ore.sync
? ore.attach
We will correct this omission in future documents.
Sherry
-
ORA-14030: partitioning column does not exist in the CREATE TABLE statement
Hi all
We are trying to create a partition materialized view and get an error below.
ORA-14030: partitioning column does not exist in the CREATE TABLE statement
Our GL_BALANCES21 and GL_CODE_COMBINATIONS21 base tables is already divided by interval of the range on Code_combination_id.
In the same way that we try to partition the view materialized
We get the error.
ORA-14030: partitioning column does not exist in the CREATE TABLE statement
Where the clause there are 4 tables gl_balances21, gl_code_combinations21, gl_periods and gl_set_of_books.
CREATE MATERIALIZED VIEW apps. BAL_PART
PARTITION BY RANGE ("CODE_COMBINATION_ID")
(SCORE LOWER (80000) VALUES,
PARTITION OF LOWER VALUES (160000),
PARTITION OF LOWER VALUES (240000),
PARTITION OF LOWER VALUES (320000),
PARTITION OF LOWER VALUES (400000),
PARTITION OF LOWER VALUES (480000),
PARTITION OF LOWER VALUES (560000),
PARTITION OF LOWER VALUES (640000),
PARTITION OF LOWER VALUES (720000),
PARTITION OF VALUES LESS THAN (800000),
PARTITION OF LOWER VALUES (880000),
PARTITION OF LOWER VALUES (960000),
PARTITION OF VALUES LESS THAN (10400000),
PARTITION OF LOWER VALUES (11200000),
PARTITION OF LOWER VALUES (12000000),
PARTITION OF LOWER VALUES (12800000),
PARTITION OF VALUES LESS THAN (13600000),
PARTITION OF LOWER VALUES (14400000),
PARTITION OF VALUES LESS THAN (15200000),
PARTITION OF LOWER VALUES (16000000),
PARTITION OF VALUES LESS THAN (16800000),
PARTITION OF VALUES LESS THAN (17600000),
PARTITION OF VALUES LESS THAN (18400000),
PARTITION OF VALUES LESS THAN (19200000),
PARTITION OF LOWER VALUES (20000000),
PARTITION OF VALUES LESS THAN (20800000),
PARTITION OF VALUES LESS THAN (21600000),
PARTITION OF VALUES LESS THAN (22400000),
PARTITION OF VALUES LESS THAN (23200000),
PARTITION OF LOWER VALUES (24000000),
PARTITION OF VALUES LESS THAN (24800000),
PARTITION OF VALUES LESS THAN (25600000),
PARTITION OF VALUES LESS THAN (26400000),
PARTITION OF LOWER VALUES (27200000),
PARTITION OF LOWER VALUES (28000000),
PARTITION OF VALUES LESS THAN (28800000),
PARTITION OF VALUES LESS THAN (29600000),
PARTITION OF VALUES LESS THAN (30400000),
PARTITION VALUES LESS THAN (MAXVALUE))
QUICKLY REFRESH ON DEMAND
SELECT the QUERY REWRITE as
SELECT GL.GL_CODE_COMBINATIONS21. ROWID C1,
GL.GL_BALANCES21. ROWID C2,
"GL". "" GL_BALANCES21 ". "" ACTUAL_FLAG, "
"GL". "" GL_BALANCES21 ". "" CURRENCY_CODE "
"GL". "" GL_BALANCES21 ". "" PERIOD_NUM, "
"GL". "" GL_BALANCES21 ". "" PERIOD_YEAR ".
"GL". "" GL_BALANCES21 ". "" SET_OF_BOOKS_ID ""SOB_ID"
"GL". "" GL_CODE_COMBINATIONS21 ". "" CODE_COMBINATION_ID ""CCID.
"GL". "" GL_CODE_COMBINATIONS21 ". "" SEGMENT1 ",.
"GL". "" GL_CODE_COMBINATIONS21 ". "" SEGMENT10, "
"GL". "" GL_CODE_COMBINATIONS21 ". "" DIRECTION11, "
"GL". "" GL_CODE_COMBINATIONS21 ". "" SEGMENT12, "
"GL". "" GL_CODE_COMBINATIONS21 ". "" SEGMENT13, "
"GL". "" GL_CODE_COMBINATIONS21 ". "" SEGMENT14, "
"GL". "" GL_CODE_COMBINATIONS21 ". "" SEGMENT2 ",.
"GL". "" GL_CODE_COMBINATIONS21 ". "" SEGMENT3. "
"GL". "" GL_CODE_COMBINATIONS21 ". "" SEGMENT4, "
"GL". "" GL_CODE_COMBINATIONS21 ". "" SEGMENT5, "
"GL". "" GL_CODE_COMBINATIONS21 ". "" SEGMENT6, "
"GL". "" GL_CODE_COMBINATIONS21 ". "" SEGMENT7. "
"GL". "" GL_CODE_COMBINATIONS21 ". "" SEGMENT8, "
"GL". "" GL_CODE_COMBINATIONS21 ". "" SEGMENT9, "
"GL". "" "" GL_PERIODS '. "" PERIOD_NAME,"
NVL ("GL". "GL_BALANCES21" "." " (BEGIN_BALANCE_CR', 0) Open_Bal_Cr,
NVL ("GL". "GL_BALANCES21" "." " (BEGIN_BALANCE_CR', 0) +.
NVL ("GL". "GL_BALANCES21" "." " (PERIOD_NET_CR', 0) Close_Bal_Cr,
NVL ("GL". "GL_BALANCES21" "." " (BEGIN_BALANCE_DR', 0) Open_Bal_Dr,
NVL ("GL". "GL_BALANCES21" "." " (BEGIN_BALANCE_DR', 0) +.
NVL ("GL". "GL_BALANCES21" "." " (PERIOD_NET_DR', 0) Close_Bal_Dr,
NVL ("GL". "GL_BALANCES21" "." " (BEGIN_BALANCE_DR', 0).
NVL ("GL". "GL_BALANCES21" "." " (BEGIN_BALANCE_CR', 0) Open_Bal,
NVL ("GL". "GL_BALANCES21" "." " (BEGIN_BALANCE_DR', 0).
NVL ("GL". "GL_BALANCES21" "." " (BEGIN_BALANCE_CR', 0) +.
NVL ("GL". "GL_BALANCES21" "." " (PERIOD_NET_DR', 0).
NVL ("GL". "GL_BALANCES21" "." " (PERIOD_NET_CR', 0) Close_Bal,
NVL ("GL". "GL_BALANCES21" "." " (PERIOD_NET_CR', 0) Period_Cr,
NVL ("GL". "GL_BALANCES21" "." " (PERIOD_NET_DR', 0) Period_Dr
OF GL.GL_CODE_COMBINATIONS21.
GL.GL_BALANCES21,
GL.GL_SETS_OF_BOOKS,
GL.GL_PERIODS
WHERE GL.GL_BALANCES21. CODE_COMBINATION_ID = GL.GL_CODE_COMBINATIONS21. CODE_COMBINATION_ID
AND GL.GL_SETS_OF_BOOKS. SET_OF_BOOKS_ID = GL.GL_BALANCES21. SET_OF_BOOKS_ID
AND GL.GL_PERIODS. PERIOD_NUM = GL.GL_BALANCES21. PERIOD_NUM
AND GL.GL_PERIODS. PERIOD_YEAR = GL.GL_BALANCES21. PERIOD_YEAR
AND GL.GL_PERIODS. PERIOD_TYPE = GL.GL_BALANCES21. PERIOD_TYPE
AND GL.GL_PERIODS. PERIOD_NAME = GL.GL_BALANCES21. PERIOD_NAME
AND GL.GL_PERIODS. PERIOD_SET_NAME = GL.GL_SETS_OF_BOOKS. PERIOD_SET_NAME
and gl.GL_CODE_COMBINATIONS21.summary_flag! = « Y »
ERROR on line 54:
ORA-01013: user has requested the cancellation of the current operation
I checked the metalink note saying that ensure that all columns in a partitioning column list are columns of
the table being created.
Partition is already there, on the column of code_combination_id of gl_balances21 and gl_code_combinations21.
Please suggest.
Thank youIt's your mistake:
PARTITION BY RANGE ("CODE_COMBINATION_ID")
but in your projection of column list, you have an alias he:
"GL"."GL_CODE_COMBINATIONS21"."CODE_COMBINATION_ID" "CCID",
You must use the alias as a partition key, not the name fom the secondary table column.
--
John Watson
Oracle Certified Master s/n
http://skillbuilders.com -
How to check the index, on the number of columns in the table is created
How to check on the number of columns in the table the index has been created. ??
OR
How check index, on the number of columns in the table that it is been created?890306 wrote:
How to check on the number of columns in the table the index has been created. ??>
OR
How check index, on the number of columns in the table that it is been created?
query USER_IND_COLUMNS
SQL> desc user_ind_columns Name Null? Type ----------------------------------------- -------- ---------------------------- INDEX_NAME VARCHAR2(30) TABLE_NAME VARCHAR2(30) COLUMN_NAME VARCHAR2(4000) COLUMN_POSITION NUMBER COLUMN_LENGTH NUMBER CHAR_LENGTH NUMBER DESCEND VARCHAR2(4)
Handle: 890306
Status level: Beginner
Join date: October 8, 2011
Messages total: 13
Total Questions: 5 (5 open)Why all the question still pending?
Published by: sb92075 on December 3, 2011 17:21
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