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Code Help wih Joins

Posted on 2012-04-06
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Last Modified: 2012-04-09
Hi - I am struggling with trying to get this join to work as it should.

I am attaching the code and the files needed to reproduce it.

I am trying to match up for every entry of diff.compr_fld_nm and bring in the fn.g_field_name for it.

Also trying to match up every entry of test_SCN1_id and bring in the ship_ID for it as well.  

All I am getting is duplicates.
TEST.zip
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Question by:j2911
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Author Comment

by:j2911
ID: 37817860
The code I have is working except for the join part.
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Accepted Solution

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hnasr earned 1000 total points
ID: 37820411
This question requires much time to recreate the problem.
Try to limit the number of tables, and fields in each table.
Check the simplified query then add more fields and tables.

In your current query you are only joining two tables that are used as one entity joined with other table without specifying the ON clause. The data is filtered using the where clause. This creates duplicate records and most are insignificant.

Try to use joins.

You can list the contents of few tables (3-4) with few records (~4 in each) and list the expected output.
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Author Comment

by:j2911
ID: 37821819
Although I appreciate your help - I don't do well learning with theory but something I can see.  Would someone have the time to help me out here?
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