What is ALTER ?
Answers were Sorted based on User's Feedback
Answer / s
ALTER is a DDL (data definition language) statement to make
changes to the description of the table.
| Is This Answer Correct ? | 3 Yes | 0 No |
Answer / om yadav
modify the structer of table.
1. add column.
2. midify column.
3. drop column.
4. add or remove constraint.
| Is This Answer Correct ? | 1 Yes | 0 No |
Answer / jitendra
ALter is to change db2 table definition. for eg:
Alter tablename
add column number(11,2)
| Is This Answer Correct ? | 0 Yes | 0 No |
What is schema in db2?
what types of copies can be made with the COPY Utility ?
What is SPUFI?
If the main program has only cobol statements and subprogram has the db2 statements what is the procedure for precompilation. for which program we need to do the precompilation
wht r the requirements for writing a cobol-db2 pgm ?
have 3 tables table1, table2 and table3 which contains employee information. table1 is master table, table2 contains emp details like emp no and so on, table 3 contains emp salary. so if any emp leave company between 25th - 30th of every month it has to get updated in tables. but it is not getting updated. What is the reason.
How Plan is created while executing the query using SPUFI?
OUTER JOINS USED TO GET MATCHING AND NONMATCHING ROWS FORM 2 OR MORE TABLES BASED ON COLUMNS. SIMPLE JOINS ALSO DO THE SAME THEN WHAT IS THE USE OF OUTER JOINS.
Explain about dbrm.
WHAT IS NULL INDICATOR ? WERE IS THIS USED? AND IF IT IS USED IN FILES CONCEPT? HOW DO WE USE IT?
What will happen, while trying to close the closed cursor.
In cobol+DB2program if the code of cobol program has changed than i have to do precompilation once again?