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Request #74592 prepared statement support
Submitted: 2017-05-15 07:58 UTC Modified: -
From: adambaratz@php.net Assigned:
Status: Open Package: PDO DBlib
PHP Version: Irrelevant OS:
Private report: No CVE-ID: None
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 [2017-05-15 07:58 UTC] adambaratz@php.net
Description:
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DBlib doesn't directly support prepared statements, but could get most of the way there using some generic stored procedures.

T-SQL offers sp_executesql:
https://docs.microsoft.com/en-us/sql/relational-databases/system-stored-procedures/sp-executesql-transact-sql

Sybase has options of its own:
http://stackoverflow.com/questions/5680960/equivalent-to-sp-executesql-in-sybase

These could likely be used in conjunction with dbbind(). If so, this would eliminate this extension's hard requirement for emulated prepares. Testing with SQL Server has shown that execution plans for queries executed with sp_executesql can be reused when the parameters change.


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