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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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Database and Storage NoSQL Storage Graph SQL
Research and Development Algorithms Machine Learning NLP Intelligent Transport System Information Retrieval Coding Big data Message Queue Security Tips Network Design OS
Archives Others Hardware Web Design Software Web Develop