What is the function of the Data Manager?
Answers were Sorted based on User's Feedback
Answer / s
Data Manager evaulates the Stage 1 Predicates on the data
in the bufferpool. It also interfaces with the index
manager for index processing. Data Manager does tablespace
scans. The DM passes the qualifying rows are one column at
a time the Relational data manager.
Is This Answer Correct ? | 2 Yes | 1 No |
Answer / renu gupta
Data Manager manages the physical databases by performing
all the normal access method functions
Is This Answer Correct ? | 0 Yes | 0 No |
What is the use of runstats in db2?
Where to download IBM DB2 Certification Dumps for the below: C2090-311 : IBM DB2 10.5 DBA for LUW Upgrade from DB2 10.1 C2090-312 : IBM DB2 11 DBA for z/OS C2090-313 : DB2 11 Application Developer for z/OS C2090-317 : DB2 11 System Administrator for z/OS C2090-541 : DB2 9.7 DBA for Linux UNIX and Windows C2090-543 : DB2 9.7 Application Development C2090-544 : DB2 9.7 Advanced DBA for LUW C2090-545 : DB2 9.7 SQL Procedure Developer C2090-546 : DB2 9.7 Database Administrator for Linux UNIX or Windows Upgrade C2090-610 : DB2 10.1 Fundamentals C2090-611 : DB2 10.1 DBA for Linux, UNIX, and Windows C2090-612 : DB2 10 DBA for z/OS C2090-614 : DB2 10.1 Advanced DBA for Linux UNIX and Windows C2090-615 : DB2 10.5 Fundamentals for LUW C2090-617 : DB2 10 System Administrator for z/OS C2090-730 : DB2 9 Family Fundamentals C2090-733 : DB2 9 Application Developer C2090-735 : DB2 9.5 SQL Procedure Developer C2090-737 : DB2 9 System Administrator for z/OS Exam
How do u achieve record level locking in DB2 versions when record level locking is not allowed?
How many Buffer pools are there in DB2 and what are they?
what is copy pending and check pending ?
What does db2 blu stand for?
SET is the ANSI standard for variable assignment, SELECT is not. SET can only assign one variable at a time, SELECT can make multiple assignments at once. If assigning from a query, SET can only assign a scalar value. If the query returns multiple values/rows then SET will raise an error. SELECT will assign one of the values to the variable and hide the fact that multiple values were returned (so you'd likely never know why something was going wrong elsewhere - have fun troubleshooting that one) When assigning from a query if there is no value returned then SET will assign NULL, where SELECT will not make the assignment at all (so the variable will not be changed from it's previous value) As far as speed differences - there are no direct differences between SET and SELECT. However SELECT's ability to make multiple assignments in one shot does give it a slight speed advantage over SET.
query to just fetch first matching row and stop execution. once one matching row is found ..no more records should be checked.. if the first record is matching.. the query must stop
What is query for your birthday date should be in hours,minute and seconds format?
What is table space in db2?
What is null indicator in db2?
What is lock escalation in db2?