Re: Can an SQL common table expression be used for many different selects?

Hi all, to clarify -

GET DIAGNOSTICS is not an API call - it is an SQL statement, as this info from the 7.1 reference says -

The GET DIAGNOSTICS statement obtains information about the previous SQL statement that was executed.

And this further from the documentation -

Instead of using an SQLCA, the GET DIAGNOSTICS statement can be used in all languages to return return codes and other information about the previous SQL statement.

GET DIAGNOSTICS was available sometime after V5R1 (I still have that reference manual) and before V6R1.

In SQLCA there are a set of 6 integer variables (SQLER1 - SQLER6) that return diagnostic information. For different statements each integer can have different meaning.

On 7/28/2020 5:11 AM, Patrik Schindler wrote:

Hello Maria,

Am 28.07.2020 um 11:56 schrieb Maria Lucia Stoppa <mlstoppa@xxxxxxxxx>:

I'm already reading the SQL technical reference, you might be referring to GET DIAGNOSTICS, but I haven't found anything interesting yet. I'll keep on studying.

I was referring to the manual about using SQL in HLLs. AFAIR, there's one or more DS' documented which give you access to a lot of internal variables, like SQLCOD and the like. GET DIAG sounds more like an API call.

The results may not be the same due to the filtering process. The result set is the same for 8 to 10 different select statements within the same run though, that's why I hoped the same "with" table could be used for all of them. Maybe, a global temporary table is of help, or a view to the database already grouped by.

I guess, this is too abstract for me to come up with a solution. Maybe Birgitta can help. Or you need to provide actual examples. But even then, I don't know if my skills are sufficient.

:wq! PoC

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