How do you display last 5 records in DB2?

Correct Answer: It is an MVS message that indicates the presence of a duplicate catalogue in the database This problem can be fixed by removing one of the entries and then adding a new one

Correct Answer: There are three types of lock, namely: Shared ? This type of lock permits two or more programs to read from the locked space but does not allow them to change it Update ? This lock is more lenient It permits the program to read and change the locked space Exclusive ? This lock restricts all users from accessing the locked space

Correct Answer: SELECT statement has resulted in retrieval of more than one row

Correct Answer: REORG reorganizes data on physical storage to reclutser rows, positioning overflowed rows in their proper sequence, to reclaim space, to restore free space It is used after heavy updates, inserts and delete activity and after segments of a segmented tablespace have become fragmented

Correct Answer: To insert a NULL, move -1 to the null indicator To insert a valid value, move 0 to the null indicator

Correct Answer: Static (embedded) SQL: 1In static SQL how database will be accessed is predetermined in the embedded SQL statement 2It is more swift and efficient 3SQL statements are compiled at compile time 4Parsing, validation, optimization, and generation of application plan are done at compile time 5It is generally used for situations where data is distributed uniformly 6EXECUTE IMMEDIATE, EXECUTE and PREPARE statements are not used 7 It is less flexible Dynamic (interactive) SQL: 1In dynamic SQL, how database will be accessed is determined at run time 2It is less swift and efficient 3SQL statements are compiled at run time 4Parsing, validation, optimization, and generation of application plan are done at run time 5It is generally used for situations where data is distributed non-uniformly 6EXECUTE IMMEDIATE, EXECUTE and PREPARE statements are used 7It is more flexible

Correct Answer: - DBRM stands for Database Request Module - The output of pre-compile process is represented as DBRM - The SQL statements are extracted from the host language by the pre-compiler

Correct Answer: DB2 use the multiple indexes to satisfy multiple predicates in a SELECT statement that are joined by an AND or OR

Correct Answer: SPUFI stands for SQL processing using file input It is the DB2 interactive menu-driven tool used by developers to create database objects

Correct Answer: Mainframe Testing is similar to client-server applications testing, but you have to know how to operate basic TSO and ISPF commands and menus, view mainframe files, look at and use SDSF or other output tool, log on CICS and transactions, use FTP or another transfer protocol, submit the batch job - it's for QA testing of mainframe applications