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PL/SQL help needed to loop through tables [message #328065] Wed, 18 June 2008 14:45 Go to next message
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Registered: June 2008
Location: india
Junior Member
I have to write a procedure which does the following

1)it should select the rows from the temp table and match with the table1 rows
note : there is second table, table 2
table 1 and table 2 have m to m relation
ex: 4rows in table1 will have 4 rows in table2.
the uniqueness of the rows is based on 3 columns in both the tables
2)i should write a procedure which will compare these 4 rows in table 1 with the 4 rows in table 2.it should compare column by column of all the 3 main columns .
if all the 3 column values of the 2 tables match for those 4 records then it should perform some updates on table1 and table3(this is another table again).if they doesnt match those records i should write to another temp table.

how can i perform the second step. Please throw some light.
please let me know if you have any questions.

Re: PL/SQL help needed to loop through tables [message #328066 is a reply to message #328065] Wed, 18 June 2008 14:50 Go to previous messageGo to next message
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Re: PL/SQL help needed to loop through tables [message #328067 is a reply to message #328065] Wed, 18 June 2008 14:58 Go to previous message
Michel Cadot
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Registered: March 2007
Location: Nanterre, France, http://...
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First you have to ask you: can you do it in pure SQL and avoid all these temp table and code.
Oracle is not SQL Server, it almost never needs temp table.

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