INSERT INTO [FareAdmin].sys_privilege(name_en, name_tw, name_cn, sequence_no, uniqueKey) SELECT N'Export in Selling', N'Export in Selling', N'Export in Selling', 37, N'EXPORTINSELLING' from sys_privilege WHERE uniqueKey = 'EXPORTINSELLING' HAVING COUNT(uniqueKey) = 0INSERT INTO [FareAdmin].sys_privilege(name_en,
阅读背景：
SQLServer:带条件的插入语句
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