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25.sql statement differentiation

2022-06-24 18:25:00 【[email protected]】

DDL
data definition language Database definition language , To operate the database
create alter drop show ： increase , to update , Delete , Show
DML
data manipulation language Database manipulation language , Used to manipulate data
selete update delete select ： increase , to update , Delete , Show
DCL
data control language Database control language , Define some permissions

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