Give the definition of COMMAREA ?

1014

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.

2611

is delete operation supported in an esds? Is rewrite operation possible in esds?

1059

What is the difference between a return with transid and xctl?

1012

Can we use DISP=SHR in output file in JCL

1378

in a jcl, a large volume dataset is loaded to a table using bmcload in step1 and an image copy of the loaded table is taken using bmccopy in step2. Step2 abends because the image copy dataset cannot hold the volume of the table. How can this be rectified?

1250

What is access path in db2?

935

What will happen if both steplib and joblib are determined?

874

What is the difference between comp and comp-3 usage?

1142

What is ibm db2 database?

960

While unloading huge amount of data from table. Suddenly job failed some error. Imagine 1M data unloading, In that 90% data unloaded only 10% left, So if want to unload the rest 10% what needs to be done? Whether do i need to start from top or anything ?

2291

File1 has 100 records and file2 has 200 records I want to copy 50 records which are in both file into file3?

882

What is the term conversational programs means?

966

what is pdes?

1066

What is the use of lds (linear data set)?

974