SQL语法笔记

SQL语法笔记 标识符(identifier)如果打了双引号,整个引号内视为标识符 UPDATE "my_table" SET "a" = 5;UPDATE "my_table" SET "a" = 5; Key words and unquoted identifiers are case insensitive (都会被理解为小写,比如标识符 FOO, foo, "foo"其实是被解释为同一个
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