help begginer to loop with T-SQL

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help begginer to loop with T-SQL

Davor Geci

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Points: 487
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December 17, 2008 at 2:54 pm

#127613

I'm new in T-SQL,
can someone help me with big problem for me, but redicilus problem for a T-SQL programmer?
I have 3 tables:
Table1, Table2, Table3
Table1 is having 100 records (fields are: ID_T1 (auto), Col1, Col2,...)
Table2 is having 20 records (fields are: ID_T2 (auto), Col1, Col2,...)
Table3 is empty (Fields are: ID_T3 (auto), ID_T1, Col1, Col2,...)
What I want to do is with T-SQL loop to insert in Table3 for each row in Table1 all records from Table2.
I want to build a test data for testing relational tables.
Thnx, Davor

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ChrisM@Work SSC Guru Points: 186127 More actions · Answer 1

Davor Geci (12/17/2008)
I'm new in T-SQL,
can someone help me with big problem for me, but redicilus problem for a T-SQL programmer?
I have 3 tables:
Table1, Table2, Table3
Table1 is having 100 records (fields are: ID_T1 (auto), Col1, Col2,...)
Table2 is having 20 records (fields are: ID_T2 (auto), Col1, Col2,...)
Table3 is empty (Fields are: ID_T3 (auto), ID_T1, Col1, Col2,...)
What I want to do is with T-SQL loop to insert in Table3 for each row in Table1 all records from Table2.
I want to build a test data for testing relational tables.
Thnx, Davor

Have a look in BOL for INSERT...FROM.

^{“Write the query the simplest way. If through testing it becomes clear that the performance is inadequate, consider alternative query forms.” - Gail Shaw}

For fast, accurate and documented assistance in answering your questions, please read this article.
Understanding and using APPLY, (I) and (II) Paul White
Hidden RBAR: Triangular Joins / The "Numbers" or "Tally" Table: What it is and how it replaces a loop Jeff Moden

Davor Geci SSC-Addicted Points: 487 More actions · Answer 2

Thnx Ten, for tip.

I have resolved the generation of the test data with INSERT INTO & cross join.

Davor

🙂