Question Re: EXECUTE IMMEDIATE vs EXECUTE in Technology Q&A

EXECUTE IMMEDIATE vs EXECUTE

Former Member — Wed, 15 Jan 2014 15:49:43 GMT

What are the main differences between EXECUTE and EXECUTE IMMEDITATE statements?

For example with this dynamic SQL:

EXECUTE ('SELECT * FROM ' || sometable ||' ORDER BY somecol');

EXECUTE IMMEDITATE ('SELECT * FROM ' || sometable ||' ORDER BY somecol');

Re: EXECUTE IMMEDIATE vs EXECUTE

MarkCulp — Wed, 15 Jan 2014 15:55:31 GMT

The basic difference between the two is that EXECUTE IMMEDIATE is WATCOM SQL and EXECUTE is TSQL. Both statements will parse a string and execute the statement(s) contained within. Each statement has different options - see the documentation for details - but other than that they are the same. Which one you use is likely more dependent on whether you are writing your procedural code using WATCOM SQL dialect or TSQL dialect.

Re: EXECUTE IMMEDIATE vs EXECUTE

chris_keating — Wed, 15 Jan 2014 16:10:16 GMT

To help with understanding syntax that is Watcom vs TSQL, the documentation provides statement applicability indicators to identify where a statement can be used. See the following for additional information:

http://dcx.sybase.com/index.html#sa160/en/dbreference/statement-applicabilityusing-wsqlstmt.html