RE: Explain Plan and SQL Text Length

As certain southern sportsmen often say, "My bad." It wasn't the explain statement but the program which builds them. Work done at 1:30 AM is always suspect.

Ian MacGregor
Stanford Linear Accelerator Center
ian_at_SLAC.Stanford.edu

-----Original Message-----
Sent: Wednesday, July 24, 2002 10:09 AM
To: Multiple recipients of list ORACLE-L

Oracle Apps r10.7 and r11.0 had some SQL statements from PRO*C batch programs that are over 20K in length. Utterly astounding!

Since VARCHAR2 variables can be up to 32767 in PL/SQL, I've written PL/SQL packages that used string variables of that length for automating EXPLAIN PLAN execution and storing the output for analysis, and ran this package in OraApps environments for months...

• Original Message ----- To: "Multiple recipients of list ORACLE-L" <ORACLE-L_at_fatcity.com> Sent: Wednesday, July 24, 2002 10:33 AM

> Ian:
>
> Any valid SQL statement can be explained. I've explained queries that were
> well over 4k -- even when you excluded the whitespace!
>
> Kevin
>
> -----Original Message-----
> Sent: Wednesday, July 24, 2002 11:50 AM
> To: Multiple recipients of list ORACLE-L
>
>
> What is the longest SQL statement that can be analyzed via explain plan.
Is
> it the maximum length equal to the maximum length of a varchar2. Does the
> new virtual explain view have any problems with the length of the
> statement?
>
> Ian MacGregor
> Stanford Linear Accelerator Center
> ian_at_SLAC.Stanford.edu
>
>
>
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> Author: MacGregor, Ian A.
> INET: ian_at_SLAC.Stanford.EDU
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