ZEROIFNULL function replaces NULL values with 0. Quick Example: SELECT ZEROIFNULL(NULL); -- Result: 0 ZEROIFNULL Overview Summary information: Syntax ZEROIFNULL(expression) Alternatives CASE WHEN expression IS NULL THEN 0 ELSE expressio
select id_p ,nvl(address,0)* age from Persons2 ; NVL( string1, replace_with) 功能:如果string1为NULL,则NVL函数返回replace_with的值,否则返回string1的值。 NVL2(address, ,0 ) 功能: NVL2(E1, E2, E3)的功能为:如果E1为NULL,则函数返回E3,若E1不为null,则返回E2。 选取在 "Address" 列中带...
When selecting data from a table, there might be some NULL values that you don’t want to show, or you want to replace it with 0 for the aggregate functions. Then you can use COALESCE to replace the NULL with 0. For example, we have the table salaries with 5 columns: emp_no, ...
If the first argument is not NULL, the function returns the first argument. Otherwise, the second argument is returned. This function is commonly used to replace NULL value with another value. It is similar to the NVL function in Oracle and the ISNULL Function in SQL Server. ...
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Arithmetic overflow error when using DATEADD with [Timestamp] column in sys.dm_os_ring_buffers Array as stored procedure parameter Array data type in SQL server Array's IN SQL SERVER? ASCII values for extended characters Assign empty string '' if datetime is null Assign EXEC output to Va...
增加1列 没有工资的 工资显示为NULL select name, if(type=‘A’,“数据分析岗”,“非数据岗”) as jwtype, IFNULL(salary,0) as ‘无工资为0’, NULLIF(salary,null) as ‘无工资为Null’ from worker; 需求: 在sql if 不建议嵌套太深(不要3层)==》慢查询 ...
BigQuery IFNULL() allows you to replace NULL values with another value. You can think of it as “if NULL, then …”. BigQuery NULLIF() allows you to treat certain values as NULL. You can think of it as “return NULL if …”. ...
Here, since the first argument is NULL, the IFNULL() function returns the second argument, which is 2. This behavior ensures that instead of returning NULL, the query outputs the fallback value 2. This is useful in scenarios where you want to replace potential NULL values with a specific ...
SQL Server 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: ...