[置顶] 牛牛记事官方发布2022 v3.6

SQL语法之Insert Into

SqlInsert Into用途: 在表中插入新行语法:插入一行数据:Insert Into table_name Values(value1, value2,....)插入一行数据在指定的字段上:Insert Into table_name(column1, column2,...) Values(value1, value2,....)   例:&l

SQL语法之Update

SqlUpdate用途:更新表中原有数据语法:Update table_name Set column_name = new_value Where column_name = some_value 例:“Person”表中的原始数据:LastNameFirstNameAddressCityNilsenFredKirkegt 56StavangerR

Sql语言实例精华

Sql选取全部栏位select * from ct(表名称)选取部分栏位select name,notes,times from ct改变栏位名称select name as 姓名,notes as  备注,birthday as 生日 from ct条件运算式一1.针对数字类型的栏位select * from ct where times>5条件运算式二针对字符串s
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