mysql - SQL Insert into table only if record doesn't exist - Stack ...

mysql - SQL Insert into table only if record doesn't exist - Stack ...

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日期:2025-04-24
SQL Insert into table only if record doesn't exist [duplicate] ... data if a record matching the ID and date does not already exist. ... SQL Server, MySQ, Oracle, MSAccess? .... `price` = 22.5; --this updates the price to the new value....看更多