Inserting existing records to table and getting new identity ID for each row

I have an issue that I inherited where I need to insert some data to 12 tables related by FK for about 40 records to an existing database through TSQL, SSIS is not an option..
Essentially the situation is that many weeks ago someone deleted a bunch of data and I cant do a restore of the database as new data has been entered so I need to "reconstruct" the data and reinsert it back. I cant just reinsert the data with the
same Primary keys as they are autogenerated. I restored a backup of the database taken prior to the deletion and have got all of my data I need loaded to temp tables. Now the issue I am running across is how to insert my "Main" table data row by
row and get the new identity and then update the corresponding row to the source temp table so that it can be used for the next 11 tables that need that Foreign Key.

How do I loop through the 40 records I am attempting to insert into the "Parent" table though?
You don't. That is, you don't loop.
You do:
MERGE target t
USING source s ON 1 = 0
WHEN NOT MATCH BY TARGET THEN
   INSERT (col1, col2, ...)
VALUES(col1, col2, ...)
OUTPUT (t.JobId, s.JobId) INTO @idmap(newid, oldid)
UPDATE source
SET newjobdid = i.newid
FROM   source s
JOIN   @idmap i ON s.jobid = i.jobid
Erland Sommarskog, SQL Server MVP, [email protected]

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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
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10      PROCEDURE p_Write;
11 END;
12 /
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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
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13
14          IF pt_UserData.COUNT > 0 THEN
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16              pt_UserData.DELETE;
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18          END IF;
19
20      END;
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22      PROCEDURE p_Log
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28      BEGIN
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30          ln_Idx := pt_UserData.COUNT + 1;
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32          pt_UserData(ln_Idx).id     := air_UserData.id;
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36      END;
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41      BEGIN
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4 BEGIN
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6      pkg_audit_user_data.p_Init;
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8 END;
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9      lc_Row.id   := :NEW.id;
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12      pkg_audit_user_data.p_Log
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16 END;
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3
4 BEGIN
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6      pkg_audit_user_data.p_Write;
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8 END;
9 /
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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
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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
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Inserting existing records to table and getting new identity ID for each row

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