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1.11 查找空值
Published : 2008-11-13
Categories :
Cookbook
Tags :
SQL
DB2
MySQL
Oracle
PostgreSQL
Database
MSSQL
IS NULL
IS NOT NULL
Q: 查找某列值为空的行
A: 使用 IS NULL,或者 IS NOT NULL
Oracle,MySQL,PostgreSQL,MSSQL,DB2 (使用IS NULL, IS NOT NULL)...
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