What is meant by a unit of recovery?
Answer / deepak dada
amount of proccessing between two commit pts
Is This Answer Correct ? | 1 Yes | 0 No |
What are the contents of a DCLGEN?
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.
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.
How do you pull up a query which was previously saved in qmf?
What is -904 sql code? How to resolve it?
Which DB2 catalog tables are used to produce a list of table column by table for all tables in a database?
What is the syntax required for the creation of a cursor?
max number of columns in a db2 table?
what is commit & rollback? When and where is used while compiling a cobol-db2 program?
What are catalog tables in db2?
I have 3 cursors declared. Cursor1 retieves some data. Based on this curso2 will also fetches some data. In cursor3 (using for some updation) I'm using the data retrieved by the above 2 cursor. My question is, while working with cursor3, periodically if I give commit, will all the three crsors will be closed or only cursor3 will be closed?
What is SPUFI?