DATA_TYPE Oracle (using SQL) questions

I have a Client Server application that I created using a server for MS - SQL (MS - SQL Server 2008 R2 Express) database.

Since MS - SQL Server has wide range and number of DATA_TYPEs, I chose to devote some of these DATA_TYPEs to the application-specific processing (mainly MONEY and DATA_TYPES BOOLEAN).

In addition, I decided that in the Client Application that the general treatment of a particular field would be determined by the corresponding DATA_TYPE stored in the database.

The value of the DATA_TYPE for a particular field within the SQL Server database and can be determined by querying:

"select DATA_TYPE from INFORMATION_SCHEMA. Columns
"where ((Column_name = «my_Field») and (Table_Name = 'myTable')).

I also extract/use other DATA_TYPE information as necessary or appropriate.

With this information the Client Application can systematically treated differently may be a MONEY (a DATA_TYPE in MS - SQL Server) a decimal or one BIGINT (two other DATA_TYPEs in MS - SQL Server). I have to create the field with the correct DATA_TYPE in the database, but after that I don't have to worry about this.
.
.
.
Now, I'm moving a database to Oracle (Oracle Database Express Edition 11 g Release 2). And I would have the same (or similar) feature, as described above.

Oracle has less DATA_TYPES is more difficult to bind an application-specific-data type to a database-Oracle-DATA_TYPE-specific. There are simply not as many "sacrifice" to my specific processing of the application. I don't want to treat each field DIGITAL like 'le-apps-money-type.'

With Oracle can I associate 'the-apps-money-type', let's say, a NUMERIC (9,2), then the Client Application will process all NUMERIC (9.2) as 'the-apps-money-type '.

The Client Application queries the Oracle database for DATA_TYPE DATA_PRECISION, DATA_SCALE to make this determination.

But this approach doesn't appeal to me, suppose I have other NUMERIC fields (9,2) who are not of the 'the-apps-money-type '. How can I set and then later determine, from the Oracle backend, if the NUMERIC field (9.2) is intended to be used as 'the-apps-money-type' or just a regular number?

Is it possible I can create a kind of "sub DATA_TYPE" in Oracle?

I have considered this in the COMMENT field associated with particular field. Then a query for this comment when I did DIGITAL DATA_TYPEs. But the COMMENTS field seems not to turn all_tab_columns and user_tab_columns.

(With Oracle SQL Developer, you can create/edit/delete user created tables/fields. COMMENTS can be added to the individual fields in a table - this are the COMMENTS that I am referring above).
.
.
.
What I would do, and a more direct approach for me, would be in some way create a user defined DATA_TYPE is simply:
(1) a user defined DATA_TYPE name (such as MY_MONEY_TYPE),
(2) associated with a built-in Oracle data type (such as NUMERIC (9.2).)

Then when the client application queries user_tab_columns the field may be treated appropriately. If I can't do it, maybe there is somewhere else I may be put and subsequently ask for such information.

What are the most direct ways to implement the functionality described above?

You can create an object type and certainly use it in your table definition

SQL> create type my_money_type as object (
  2    val number(9,2)
  3  );
  4  /

Type created.

SQL> create table foo (
  2    col1 number primary key,
  3    col2 my_money_type
  4  );

Table created.

SQL> insert into foo values( 1, my_money_type(1.23) );

1 row created.

SQL> select col1, col2 from foo;

   COL1
-------
COL2(VAL)
--------------------------------------------------------------------------------
   1.00
MY_MONEY_TYPE(1.23)

This usually isn't a particularly good way to design an application, however. Types of objects are very useful in the treatment of PL/SQL, but their conservation in a table is usually a pain - you must constantly to call the constructor of the object and the getter methods (I did not worth defining here) assuming that you want to return the number of 1.23 rather than an instance of MY_MONEY_TYPE.

Justin

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    DHCP-1-1-5 | 80.25.47.369, 60.258.14.10

    for stg_link_data

    cmts_dhcp_link_map_0309151623_1.csv

    DHCP-1-1-1. WNLB-CMTS-01-1,WNLB-CMTS-02-2

    DHCP-1-1-2. WNLB-CMTS-03-3,WNLB-CMTS-04-4,WNLB-CMTS-05-5

    DHCP-1-1-3. WNLB-CMTS-01-1

    DHCP-1-1-4. WNLB-CMTS-05-8,WNLB-CMTS-05-6,WNLB-CMTS-05-0,WNLB-CMTS-03-3

    DHCP-1-1-5 | WNLB-CMTS-02-2,WNLB-CMTS-04-4,WNLB-CMTS-05-7

    WNLB-DHCP-1-13 | WNLB-CMTS-02-2

    Now, after loading these data in the staging of table I have to fill the main database table

    create table subntwk (subntwk_nm varchar2 (20), subntwk_ip varchar2 (30));

    create table link (link_nm varchar2 (50));

    SQL scripts that I created to load data is like.

    coil load_cmts.log

    Set serveroutput on

    DECLARE

    CURSOR c_stg_cmts IS SELECT *.

    OF stg_cmts_data;

    TYPE t_stg_cmts IS TABLE OF stg_cmts_data % ROWTYPE INDEX BY pls_integer;

    l_stg_cmts t_stg_cmts;

    l_cmts_cnt NUMBER;

    l_cnt NUMBER;

    NUMBER of l_cnt_1;

    BEGIN

    OPEN c_stg_cmts.

    Get the c_stg_cmts COLLECT in BULK IN l_stg_cmts;

    BECAUSE me IN l_stg_cmts. FIRST... l_stg_cmts. LAST

    LOOP

    SELECT COUNT (1)

    IN l_cmts_cnt

    OF subntwk

    WHERE subntwk_nm = l_stg_cmts (i) .cmts_token;

    IF l_cmts_cnt < 1 THEN

    INSERT

    IN SUBNTWK

    (

    subntwk_nm

    )

    VALUES

    (

    l_stg_cmts (i) .cmts_token

    );

    DBMS_OUTPUT. Put_line ("token has been added: ' |") l_stg_cmts (i) .cmts_token);

    ON THE OTHER

    DBMS_OUTPUT. Put_line ("token is already present'");

    END IF;

    WHEN l_stg_cmts EXIT. COUNT = 0;

    END LOOP;

    commit;

    EXCEPTION

    WHILE OTHERS THEN

    Dbms_output.put_line ('ERROR' |) SQLERRM);

    END;

    /

    output

    for dhcp


    coil load_dhcp.log

    Set serveroutput on

    DECLARE

    CURSOR c_stg_dhcp IS SELECT *.

    OF stg_dhcp_data;

    TYPE t_stg_dhcp IS TABLE OF stg_dhcp_data % ROWTYPE INDEX BY pls_integer;

    l_stg_dhcp t_stg_dhcp;

    l_dhcp_cnt NUMBER;

    l_cnt NUMBER;

    NUMBER of l_cnt_1;

    BEGIN

    OPEN c_stg_dhcp.

    Get the c_stg_dhcp COLLECT in BULK IN l_stg_dhcp;

    BECAUSE me IN l_stg_dhcp. FIRST... l_stg_dhcp. LAST

    LOOP

    SELECT COUNT (1)

    IN l_dhcp_cnt

    OF subntwk

    WHERE subntwk_nm = l_stg_dhcp (i) .dhcp_token;

    IF l_dhcp_cnt < 1 THEN

    INSERT

    IN SUBNTWK

    (

    subntwk_nm

    )

    VALUES

    (

    l_stg_dhcp (i) .dhcp_token

    );

    DBMS_OUTPUT. Put_line ("token has been added: ' |") l_stg_dhcp (i) .dhcp_token);

    ON THE OTHER

    DBMS_OUTPUT. Put_line ("token is already present'");

    END IF;

    WHEN l_stg_dhcp EXIT. COUNT = 0;

    END LOOP;

    commit;

    EXCEPTION

    WHILE OTHERS THEN

    Dbms_output.put_line ('ERROR' |) SQLERRM);

    END;

    /

    output

    for link -.

    coil load_link.log

    Set serveroutput on

    DECLARE

    l_cmts_1 VARCHAR2 (4000 CHAR);

    l_cmts_add VARCHAR2 (200 CHAR);

    l_dhcp_cnt NUMBER;

    l_cmts_cnt NUMBER;

    l_link_cnt NUMBER;

    l_add_link_nm VARCHAR2 (200 CHAR);

    BEGIN

    FOR (IN) r

    SELECT dhcp_token, cmts_to_add | ',' cmts_add

    OF stg_link_data

    )

    LOOP

    l_cmts_1: = r.cmts_add;

    l_cmts_add: = TRIM (SUBSTR (l_cmts_1, 1, INSTR (l_cmts_1, ',') - 1));

    SELECT COUNT (1)

    IN l_dhcp_cnt

    OF subntwk

    WHERE subntwk_nm = r.dhcp_token;

    IF l_dhcp_cnt = 0 THEN

    DBMS_OUTPUT. Put_line ("device not found: ' |") r.dhcp_token);

    ON THE OTHER

    While l_cmts_add IS NOT NULL

    LOOP

    l_add_link_nm: = r.dhcp_token |' _TO_' | l_cmts_add;

    SELECT COUNT (1)

    IN l_cmts_cnt

    OF subntwk

    WHERE subntwk_nm = TRIM (l_cmts_add);

    SELECT COUNT (1)

    IN l_link_cnt

    LINK

    WHERE link_nm = l_add_link_nm;

    IF l_cmts_cnt > 0 AND l_link_cnt = 0 THEN

    INSERT INTO link (link_nm)

    VALUES (l_add_link_nm);

    DBMS_OUTPUT. Put_line (l_add_link_nm |) » '||' Has been added. ") ;

    ELSIF l_link_cnt > 0 THEN

    DBMS_OUTPUT. Put_line (' link is already present: ' | l_add_link_nm);

    ELSIF l_cmts_cnt = 0 then

    DBMS_OUTPUT. Put_line (' no. CMTS FOUND for device to create the link: ' | l_cmts_add);

    END IF;

    l_cmts_1: = TRIM (SUBSTR (l_cmts_1, INSTR (l_cmts_1, ',') + 1));

    l_cmts_add: = TRIM (SUBSTR (l_cmts_1, 1, INSTR (l_cmts_1, ',') - 1));

    END LOOP;

    END IF;

    END LOOP;

    COMMIT;

    EXCEPTION

    WHILE OTHERS THEN

    Dbms_output.put_line ('ERROR' |) SQLERRM);

    END;

    /

    output

    control files -

    DOWNLOAD THE DATA

    INFILE 'cmts_data.csv '.

    ADD

    IN THE STG_CMTS_DATA TABLE

    When (cmts_token! = ") AND (cmts_token! = 'NULL') AND (cmts_token! = 'null')

    and (cmts_ip! = ") AND (cmts_ip! = 'NULL') AND (cmts_ip! = 'null')

    FIELDS TERMINATED BY ' |' SURROUNDED OF POSSIBLY "" "

    TRAILING NULLCOLS

    ('RTRIM (LTRIM (:cmts_token))' cmts_token,

    cmts_ip ' RTRIM (LTRIM(:cmts_ip)) ")". "

    for dhcp.


    DOWNLOAD THE DATA

    INFILE 'dhcp_data.csv '.

    ADD

    IN THE STG_DHCP_DATA TABLE

    When (dhcp_token! = ") AND (dhcp_token! = 'NULL') AND (dhcp_token! = 'null')

    and (dhcp_ip! = ") AND (dhcp_ip! = 'NULL') AND (dhcp_ip! = 'null')

    FIELDS TERMINATED BY ' |' SURROUNDED OF POSSIBLY "" "

    TRAILING NULLCOLS

    ('RTRIM (LTRIM (:dhcp_token))' dhcp_token,

    dhcp_ip ' RTRIM (LTRIM(:dhcp_ip)) ")". "

    for link -.

    DOWNLOAD THE DATA

    INFILE 'link_data.csv '.

    ADD

    IN THE STG_LINK_DATA TABLE

    When (dhcp_token! = ") AND (dhcp_token! = 'NULL') AND (dhcp_token! = 'null')

    and (cmts_to_add! = ") AND (cmts_to_add! = 'NULL') AND (cmts_to_add! = 'null')

    FIELDS TERMINATED BY ' |' SURROUNDED OF POSSIBLY "" "

    TRAILING NULLCOLS

    ('RTRIM (LTRIM (:dhcp_token))' dhcp_token,

    cmts_to_add TANK (4000) RTRIM (LTRIM(:cmts_to_add)) ")" ""

    SHELL SCRIPT-

    If [!-d / log]

    then

    Mkdir log

    FI

    If [!-d / finished]

    then

    mkdir makes

    FI

    If [!-d / bad]

    then

    bad mkdir

    FI

    nohup time sqlldr username/password@SID CONTROL = load_cmts_data.ctl LOG = log/ldr_cmts_data.log = log/ldr_cmts_data.bad DISCARD log/ldr_cmts_data.reject ERRORS = BAD = 100000 LIVE = TRUE PARALLEL = TRUE &

    nohup time username/password@SID @load_cmts.sql

    nohup time sqlldr username/password@SID CONTROL = load_dhcp_data.ctl LOG = log/ldr_dhcp_data.log = log/ldr_dhcp_data.bad DISCARD log/ldr_dhcp_data.reject ERRORS = BAD = 100000 LIVE = TRUE PARALLEL = TRUE &

    time nohup sqlplus username/password@SID @load_dhcp.sql

    nohup time sqlldr username/password@SID CONTROL = load_link_data.ctl LOG = log/ldr_link_data.log = log/ldr_link_data.bad DISCARD log/ldr_link_data.reject ERRORS = BAD = 100000 LIVE = TRUE PARALLEL = TRUE &

    time nohup sqlplus username/password@SID @load_link.sql

    MV *.log. / log

    If the problem I encounter is here for loading data in the link table that I check if DHCP is present in the subntwk table, then continue to another mistake of the newspaper. If CMTS then left create link to another error in the newspaper.

    Now that we can here multiple CMTS are associated with unique DHCP.

    So here in the table links to create the link, but for the last iteration of the loop, where I get separated by commas separate CMTS table stg_link_data it gives me log as not found CMTS.

    for example

    DHCP-1-1-1. WNLB-CMTS-01-1,WNLB-CMTS-02-2

    Here, I guess to link the dhcp-1-1-1 with balancing-CMTS-01-1 and wnlb-CMTS-02-2

    Theses all the data present in the subntwk table, but still it gives me journal wnlb-CMTS-02-2 could not be FOUND, but we have already loaded into the subntwk table.

    same thing is happening with all the CMTS table stg_link_data who are in the last (I think here you got what I'm trying to explain).

    But when I run the SQL scripts in the SQL Developer separately then it inserts all valid links in the table of links.

    Here, she should create 9 lines in the table of links, whereas now he creates only 5 rows.

    I use COMMIT in my script also but it only does not help me.

    Run these scripts in your machine let me know if you also get the same behavior I get.

    and please give me a solution I tried many thing from yesterday, but it's always the same.

    It is the table of link log

    link is already present: dhcp-1-1-1_TO_wnlb-cmts-01-1

    NOT FOUND CMTS for device to create the link: wnlb-CMTS-02-2

    link is already present: dhcp-1-1-2_TO_wnlb-cmts-03-3
    link is already present: dhcp-1-1-2_TO_wnlb-cmts-04-4

    NOT FOUND CMTS for device to create the link: wnlb-CMTS-05-5

    NOT FOUND CMTS for device to create the link: wnlb-CMTS-01-1

    NOT FOUND CMTS for device to create the link: wnlb-CMTS-05-8
    NOT FOUND CMTS for device to create the link: wnlb-CMTS-05-6
    NOT FOUND CMTS for device to create the link: wnlb-CMTS-05-0

    NOT FOUND CMTS for device to create the link: wnlb-CMTS-03-3

    link is already present: dhcp-1-1-5_TO_wnlb-cmts-02-2
    link is already present: dhcp-1-1-5_TO_wnlb-cmts-04-4

    NOT FOUND CMTS for device to create the link: wnlb-CMTS-05-7

    Device not found: wnlb-dhcp-1-13

    IF NEED MORE INFORMATION PLEASE LET ME KNOW

    Thank you

    I felt later in the night that during the loading in the staging table using UNIX machine he created the new line for each line. That is why the last CMTS is not found, for this I use the UNIX 2 BACK conversion and it starts to work perfectly.

    It was the dos2unix error!

    Thank you all for your interest and I may learn new things, as I have almost 10 months of experience in (PLSQL, SQL)

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    >

    Hello

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    Published by: Paulie July 24, 2012 16:40

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