Re: 2 Interesting Questions regarding 12.1 dbms_sqldiag_internal.i_create_patch (not 12.2)

Hello,

1. Yes, You can find an example here: https://blog.dbi-services.com/sql-patch-another-way-to-change-the-plan-without-changing-the-code-1/
2. HINT_TEXT=>'FULL(_at_"SEL$10" "SRCL")'

În lun., 13 sept. 2021 la 20:17, Chris Taylor < christopherdtaylor1994_at_gmail.com> a scris:

> Background: I'm looking over Maria Colgan's posts here:
>
> https://blogs.oracle.com/optimizer/post/using-sql-patch-to-add-hints-to-a-packaged-application
>
> https://blogs.oracle.com/optimizer/post/additional-information-on-sql-patches
>
> I have 2 questions:
> 1.) Can I assign "sql_text=>" to v_sql where I load v_sql from
> dba_hist_sqltext for a sql_id?
> I assume the answer should be yes?
>
> 2.) The patch I need to apply is in a terrible SUBSELECT thats part of a
> CTE.
>
> In the execution plan it looks like this:
>
> |* 43 | TABLE ACCESS BY GLOBAL INDEX ROWID BATCHED |
> SPECIAL_REVERSED_CLAIM_LOG | 1 | 29 | 3 (0)| 00:00:01 |
> ROWID | ROWID |
> |* 44 | INDEX RANGE SCAN |
> SPECIAL_REVERSED_CLAIM_LOG_IDX | 1 | | 2 (0)| 00:00:01 |
> |
>
> Which is this in the outline information:
> 43 - SEL$63682743 / SRCL_at_SEL$10
> 44 - SEL$63682743 / SRCL_at_SEL$10
>
> So how I would hint this sql using the SQL Patch?
>
> Would it be something like:
>
> HINT_TEXT=>'FULL(_at_SEL$63682743 SRCL)'
>
> Chris
>
>
>
>

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