tsql update select的相關文章
T-SQL Script to update string NULL with default NULL - TechNet Articles - United States (English) -

T-SQL Script to update string NULL with default NULL - TechNet Articles - United States (English) -

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日期:2025-04-23
USE [AdventureWorks2012] GO --Create test table with two columns to hold string & default NULL CREATE TABLE Test_Null(Id INT IDENTITY(1,1),StringNull VARCHAR(10) ,DefaultNull VARCHAR(10)) INSERT Test_Null (StringNull) SELECT 'NULL' INSERT Test ......看更多