Answer / Amit Kumar Awasthi

The DB2 Catalog is a system database that contains metadata (data about data) for all other databases. It stores information such as table and column definitions, indexes, stored procedures, and authorization details.

How do you simulate the explain of an embedded sql statement in spufi/qmf?

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Q1. How will you use two different DB2 qualifiers in a single COBOL program? Suppose we have 2 tables EMP1 and EMP2 with same structure defined in two different DB2 qualifiers QUAL1.EMP1 and QUAL2.EMP2 now during first 15 days we want to use QUAL1.EMP1 and rest of the days QUAL2.EMP2  how will we do this.  We can create a single program and a single load for this program. 

2 Answers   RBS,

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Can a Db2 table data be retrived through JCL?

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Could you please let me no the query for below I have table name xyx under this there is column name called employee name which starts from 100th column ends 120th column,now i want to replace only column from 101 to 104 which contains ABCS to replace with PQRS for all records which comes beetween 101 to 104 ..how to write query for this..

1 Answers   HSBC,

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What information can you find in SYSIBM.SYSLINKS table?

1 Answers   TCS,

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How does cobol compile db2 program?

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if suppose i am having an ACCOUNT table with 3 coloumns ACC. NO,ACC. NAME,ACC. AMOUNT . If a unique index is also defined on ACC.NO and ACC.NAME then write a query to retrieve account holders records who have more than 1 ACC.

8 Answers   Wipro,

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How many databases are there?

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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)

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Mention some fields that are a part of sqlca.

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What is the difference between cursor stability and repeatable read isolation levels?

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When do you specify the isolation level?

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