What are the rules for db2 programming?

0 Answers  

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In a Cobol-DB2 program, I am fetching rows from 4 tables using cursor and then based on the a field present in that table, It processes the information accordingly..for example stat-c is one digit field..if stat-c is 'D' then the a row is deleted from table and written those details in to a file. If the stat-c is 'U' then a row is updated (hardcoded what to update)in a table and written those details in to a file. If the stat-c is 'I' then a row is inserted in a table and written those details in to two files. The issue is i have to include the intermediate commits. When an abend occurs, due to commit statement db2 tables will be saved, But there will be lose of file contents. When we resubmitting the job associated with this program there will be insert ,update and delete anomolies to avoid that what measures could be taken?. The intermediate commit is nothing but issuing commit after massive inserts, updates and deletes(sum of 500actions)

2 Answers  

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what happend with out using Commit,when closing cursor and program?

5 Answers   CSC,

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What is copy book?

1 Answers   Thomson Reuters,

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what is datacom db?

2 Answers   CSC,

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we can code COPY DCLGEN or INCLUDE DCLGEN, At which stage of the precompilation , dclgen get expanded if we write 1) copy 2) include one question about dclgen.. Is it mandatory to use declare table in dclgen.. I think no...but it will be used by the precompiler to validate the table name,column name etc.., can one clear my doubt ..is it necessary to include declare table or not?

2 Answers  

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How does the processing of a correlated subquery differ from a non correlated subquery?

1 Answers  

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Explain the EXPLAIN statement?

1 Answers  

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What is the maximum number of tables that can be stored on a Partitioned Table Space ?

1 Answers   IBM,

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What is meant by concurrency?

1 Answers  

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I want to fetch the 10th row of a table which has been changed.How can I do it without going thru all the rows.

5 Answers  

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What is the maximum length of sqlca?

0 Answers  

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