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分享SQL语句书写规范
1. 语句关键字应全部使用小写。 2. 引用字符时应使用单引号。如:update testable set idcol=’abcd’。 3. 连接符或运算符or、in、and、=、<=、>=, +,- 等前后宜加上一个空格。否则容易导致以下类似问题。例如在语句select a–b from table中,a,b均为变量,拼写该语句时 ...
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