Inserting or Updating a row, Depending on Condition in Procedure

Hi All,
I m new to Procedures in Oracle. Can some body help me out? I need to insert a row, if there is no row exist for a user. And update, when the record exist. here are the fields of table: EMPLOYEE_ID, VALUE1, VALUE2, CREATED_DATE, UPDATED_DATE, CREATED_BY, UPDATED_BY.
If no, row exist, then i want to run this query:
insert into user_profile(EMPLOYEE_ID, VALUE1, VALUE2, CREATED_DATE, UPDATED_DATE, CREATED_BY, UPDATED_BY) values(31211, 16, 17, Sysdate, sysdate, 31211, 31211);
And when there is row exist for EMPLOYEE_ID, need to run following query:
update user_profile set VALUE1= 16 ,VALUE2 =17, UPDATED_DATE=sysdate, UPDATED_BY = 31121
where EMPLOYEE_ID=31121
And my procedure takes three values, value1 e.g. 16, value2 e.g. 17 and userid e.g. 31121
Thanks for helping me out...
Best Regards,
Ashish

You don't need to create any procedure. you will have to pass all the value of empid etc... to the merge statement like:
MERGE INTO user_profile UP USING (select 1 i_empId,'value' i_value1, 'value2' i_value2 from dual) up2
on (up.employee_id = up2.i.empid)
WHEN MATCHED THEN
     update
          set up.VALUE1 = up2.i_value1 ,
              up.VALUE2 = up2.i_value2,
              up.UPDATED_DATE = sysdate,
              up.UPDATED_BY = up2.i_empId
WHEN NOT MATCHED THEN
     insert into user_profile(up.EMPLOYEE_ID, up.VALUE1, up.VALUE2, up.CREATED_DATE, up.UPDATED_DATE, up.CREATED_BY, up.UPDATED_BY)
                 values(up2.i_empId, up2.i_value1, up2.i_value1, Sysdate, sysdate, up2.i_empId, up2.i_empId);

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Jitendra,
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Updating multiple rows using join condition

Hi All,
CREATE OR REPLACE
PROCEDURE update_t
IS
BEGIN
FOR emp_rec IN (SELECT EMPLOYEE_ID,FIRST_NAME,LAST_NAME FROM hr.employees)
LOOP
UPDATE
hr.employees1
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ORA-06512: at "SYSTEM.UPDATE_T", line 13
ORA-06512: at line 1
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Try this
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Hi there!
I want to ask what I should do in the following case: I have to handle mutliple rows of data to insert OR to update into the database.
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This is not a problem with java but rather a problem
with databases in general. The solution generally
depends on the data that is being operated on.
If there is a primary key involved, and most records
were expected to NOT be in the database, then you
could just insert them in blocks (transaction/batch).
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Then you can process each block as individual
l statements. The ones that fail are done as
inserts.
The reverse of the above is used if you expect most
records to be in the database. Do updates and the
break out the blocks with failures to locate the
inserts.
Keep in mind that queries for keys probably will be
faster, but that requires that your keys are ordered.
If you keys are ordered then you can get a range from
the initial data. Use that to query the database for
keys between that range (only return the keys.)
Using the returned keys you can decide whether each
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data into each group and batch each group for more
speed.)
If the data is really mixed and the database supports
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which decides whether an insert/update is needed.
Finally if you have large amounts of data, bulk
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using JDBC to do the insert/updates you write the
output to a file and pass the file to the tool. You
might use JDBC (again with the ordered key query) to
decide which operation to do. Although faster for
large sets this is problematic due to the error
handling that you have to add.
Thanks for this, jschell. I look for your answers, because they're on the money and written well. I learn a lot from them. - MOD

SQL merge and after insert or update on ... for each row fires too often?

Hello,
there is a base table, which has a companion history table
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I can try to make a sample 'sqlplus' program, but it will take some time.
But maybe somebody knows already about some issues here(?!)
- many thanks!
best regards,
Frank

Hello
Not sure really. Although it shouldn't take long to do a test case - it only took me 10 mins....
SQL>
SQL> create table USER_DATA
2 (   id      number,
3      col1    varchar2(100)
4 )
5 /
Table created.
SQL>
SQL> CREATE TABLE USER_DATA_HIST
2 (   id      number,
3      col1    varchar2(100),
4      tmsp    timestamp
5 )
6 /
Table created.
SQL>
SQL> CREATE OR REPLACE PACKAGE pkg_audit_user_data
2 IS
3
4      PROCEDURE p_Init;
5
6      PROCEDURE p_Log
7      (   air_UserData        IN user_data%ROWTYPE
8      );
9
10      PROCEDURE p_Write;
11 END;
12 /
Package created.
SQL> CREATE OR REPLACE PACKAGE BODY pkg_audit_user_data
2 IS
3
4      TYPE tt_UserData        IS TABLE OF user_data_hist%ROWTYPE INDEX BY BINARY_INTEGER;
5
6      pt_UserData             tt_UserData;
7
8      PROCEDURE p_Init
9      IS
10
11      BEGIN
12
13
14          IF pt_UserData.COUNT > 0 THEN
15
16              pt_UserData.DELETE;
17
18          END IF;
19
20      END;
21
22      PROCEDURE p_Log
23      (   air_UserData        IN user_data%ROWTYPE
24      )
25      IS
26          ln_Idx              BINARY_INTEGER;
27
28      BEGIN
29
30          ln_Idx := pt_UserData.COUNT + 1;
31
32          pt_UserData(ln_Idx).id     := air_UserData.id;
33          pt_UserData(ln_Idx).col1   := air_UserData.col1;
34          pt_UserData(ln_Idx).tmsp   := SYSTIMESTAMP;
35
36      END;
37
38      PROCEDURE p_Write
39      IS
40
41      BEGIN
42
43          FORALL li_Idx IN INDICES OF pt_UserData
44              INSERT
45              INTO
46                  user_data_hist
47              VALUES
48                  pt_UserData(li_Idx);
49
50      END;
51 END;
52 /
Package body created.
SQL>
SQL> CREATE OR REPLACE TRIGGER preu_s_user_data BEFORE UPDATE ON user_data
2 DECLARE
3
4 BEGIN
5
6      pkg_audit_user_data.p_Init;
7
8 END;
9 /
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SQL> CREATE OR REPLACE TRIGGER preu_r_user_data BEFORE UPDATE ON user_data
2 FOR EACH ROW
3 DECLARE
4
5      lc_Row      user_data%ROWTYPE;
6
7 BEGIN
8
9      lc_Row.id   := :NEW.id;
10      lc_Row.col1 := :NEW.col1;
11
12      pkg_audit_user_data.p_Log
13      (   lc_Row
14      );
15
16 END;
17 /
Trigger created.
SQL> CREATE OR REPLACE TRIGGER postu_s_user_data AFTER UPDATE ON user_data
2 DECLARE
3
4 BEGIN
5
6      pkg_audit_user_data.p_Write;
7
8 END;
9 /
Trigger created.
SQL>
SQL>
SQL> insert
2 into
3      user_data
4 select
5      rownum,
6      dbms_random.string('u',20)
7 from
8      dual
9 connect by
10      level <=10
11 /
10 rows created.
SQL> select * from user_data
2 /
        ID COL1
         1 GVZHKXSSJZHUSLLIDQTO
         2 QVNXLTGJXFUDUHGYKANI
         3 GTVHDCJAXLJFVTFSPFQI
         4 CNVEGOTDLZQJJPVUXWYJ
         5 FPOTZAWKMWHNOJMMIOKP
         6 BZKHAFATQDBUVFBCOSPT
         7 LAQAIDVREFJZWIQFUPMP
         8 DXFICIPCBCFTPAPKDGZF
         9 KKSMMRAQUORRPUBNJFCK
        10 GBLTFZJAOPKFZFCQPGYW
10 rows selected.
SQL> select * from user_data_hist
2 /
no rows selected
SQL>
SQL> MERGE
2 INTO
3      user_data a
4 USING
5 (   SELECT
6          rownum + 8 id,
7          dbms_random.string('u',20) col1
8      FROM
9          dual
10      CONNECT BY
11          level <= 10
12 ) b
13 ON (a.id = b.id)
14 WHEN MATCHED THEN
15      UPDATE SET a.col1 = b.col1
16 WHEN NOT MATCHED THEN
17      INSERT(a.id,a.col1)
18      VALUES (b.id,b.col1)
19 /
10 rows merged.
SQL> select * from user_data_hist
2 /
        ID COL1                 TMSP
         9 XGURXHHZGSUKILYQKBNB 05-AUG-11 10.04.15.577989
        10 HLVUTUIFBAKGMXBDJTSL 05-AUG-11 10.04.15.578090
SQL> select * from v$version
2 /
BANNER
Oracle Database 10g Enterprise Edition Release 10.2.0.4.0 - 64bi
PL/SQL Release 10.2.0.4.0 - Production
CORE    10.2.0.4.0      Production
TNS for Linux: Version 10.2.0.4.0 - Production
NLSRTL Version 10.2.0.4.0 - ProductionHTH
David

How can I use multiple row insert or update into DB in JSP?

Hi all,
pls help for my question.
"How can I use multiple rows insert or update into DB in JSP?"
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With thanks,

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Unless you're using MySQL, for instance. I only have
experience with MySQL and M$ SQL Server, so I don't
know what PostgreSQL, Oracle, Sybase, DB2 and all the
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Nutshell. It covers the most common DBMSes and does a
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Need help in SQL Query: Update a row in a table & insert the same row into another table

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http://www.sqlteam.com/article/stored-procedures-parameters-inserts-and-updates
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http://www.mssqlcity.com/Articles/Adm/SQL70Locks.htm
http://www.faqs.org/docs/ppbook/r27479.htm
http://msdn.microsoft.com/en-US/library/ms187373.aspx
http://msdn.microsoft.com/en-US/library/ms173763.aspx
http://msdn.microsoft.com/en-us/library/e7z8d5hf(v=vs.80).aspx
http://mssqlserver.wordpress.com/2006/11/08/locks-in-sql/
http://www.mollerus.net/tom/blog/2008/03/using_mssqls_nolock_for_faster_queries.html
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It works for me.
SQL> create table Table_A(a1 number, a2 varchar(10), a3 varchar(10));
Table created.
SQL> create table Table_B(b1 number, b2 varchar(10), b3 varchar(10));
Table created.
SQL> create table Table_C(c1 number, c2 varchar(10), c3 varchar(10));
Table created.
SQL> insert into Table_C
2 select level, level + 1, level + 2
3 from dual connect by level <= 3;
3 rows created.
SQL> create or replace trigger table_a_tr
2 after insert or update or delete on table_a
3 for each row
4 declare
5 begin
6 insert into table_b(b1,b2,b3)
7 (select c1, c2, c3
8 from table_c);
9 end table_a_tr;
10 /
Trigger created.
SQL>
SQL> insert into table_a values (9, 'x', 'x');
1 row created.
SQL> select * from table_b;
        B1 B2         B3
         1 2          3
         2 3          4
         3 4          5Can you show exactly what you are doing in the same way?

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What is the best way to update individual rows of a table? Invoke Node "Set Cell Value" ... or is there another method?
2) Why is it that after every other iteration the row values are erased?
Also, for adding additional strings to the original arrray ... is it best to use the "Array Subset" and then the "Build Array" function, or the "Array Subset" and "Insert Into Array" function?
See the attached example.
Thanks.
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Table Example.vi ‏19 KB

Jeff·Þ·Bohrer wrote:
2) Why is it that after every other iteration the row values are erased?
Classic race condition. dump the for loop and p-node and just wire the 2D array to the table terminal.!
I'm not seeing the race condition. What I am seeing is the table emptying after the last element was written to it on every other run. I saw watched this with highlight execution on.
But I'm in full agreement with just writing to the terminal. It is a 1D array, so you will need to use a build array and transpose 2D array in order for it to write properly.
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Inserting or Updating a row, Depending on Condition in Procedure

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