ExampleGet your own SQL Server Return the first non-null value in a list: SELECT COALESCE(NULL, NULL, NULL, 'W3Schools.com', NULL, 'Example.com'); Try it Yourself » Definition and UsageThe COALESCE() function returns the first non-null value in a list....
The SQL ServerISNULL()function lets you return an alternative value when an expression is NULL: SELECTProductName, UnitPrice * (UnitsInStock + ISNULL(UnitsOnOrder,0)) FROMProducts; or we can use theCOALESCE()function, like this: SELECTProductName, UnitPrice * (UnitsInStock +COALESCE(UnitsO...
sql:函数:COALESCE() 2018年10月12日COALESCE ( expression,value1,value2……,valuen) COALESCE()函数的第一个参数expression为待检测的表达式,而其后的参数个数不定。 COALESCE()函数将会返回包... https://blog.csdn.net/weixin_38750084/article/deta... 收藏 赞 SQL Server COALESCE() Function 2022年...
Function of COALESCE() in SQL Server could be the Example Retrieve the initial non-empty element from a given collection. SELECT COALESCE(NULL, NULL, NULL, 'W3Schools.com', NULL, 'Example.com'); Try it Yourself » Definition and Usage The function COALESCE() retrieves the initial non-em...
❮Previous❮ SQL Server FunctionsNext❯ ExampleGet your own SQL Server Return the first non-null value in a list: SELECTCOALESCE(NULL,NULL,NULL,'W3Schools.com',NULL,'Example.com'); Try it Yourself » Definition and Usage The COALESCE() function returns the first non-null value in a...
Example Return the first non-null value in a list: SELECT COALESCE(NULL, NULL, NULL, 'W3Schools.com', NULL, 'Example.com'); Try it Yourself » Definition and UsageThe COALESCE() function returns the first non-null value in a list....