How can you split a table in to exactly half?

7 Answers   HSBC,

---

What is the significance of DB2 free space and what parameters control it?

1 Answers  

---

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.

0 Answers  

---

what is a plan and how do you refer the plan in the program?

2 Answers   Xansa,

---

EXPLAIN has output with MATCHCOLS = 0. What does it mean?

2 Answers  

---

Can you define an Index if the table size less than 10 PAGES?

1 Answers   IBM,

---

COBOL PRECOMPILER ERROR: "XXXXXX" (TABLE) PREVIOUSLY DECLARED OR REFERENCED DCLGEN VARIABLES GETS IMPORTED TWICE FOR ONLY ONE EXEC SQL STATEMENT. WHAT COULD BE THE PROBLEM?

1 Answers  

---

What is a storage group (stogroup)?

0 Answers  

---

What are the disadvantages of using VARCHAR?

3 Answers  

---

Can we delete records from view?

0 Answers  

---

Can you use max on a char column?

0 Answers  

---

What is the difference between "db2ilist" and "db2 get instance" commands in DB2 Database Server?

0 Answers   MCN Solutions,

---