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並前往https://www.codeproject.com/Questions/5330717/How-to-check-if-exists-a-row-before-insert-PL-SQL

How to check if exists a row before insert - PL/SQL - CodeProject

SQL best way I can think of is add it like this: SQL. IF NOT EXISTS ( select 1 FROM APP_PROJECT_GROUP WHERE GROUP_NAME = :v_group_name AND ...

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