Check if parameter is NULL DemoSQL> SQL> CREATE OR REPLACE PROCEDURE print (n INTEGER) IS 2 BEGIN--fromwww.java2s.com 3 IF n IS NOT NULL THEN 4 DBMS_OUTPUT.PUT_LINE(n); 5 ELSE 6 DBMS_OUTPUT.PUT_LINE('NULL'); 7 END...
在SQL Server 的存储过程中,我们通常使用IS NULL或= ''来判断变量是否为空。 三、代码示例 下面是一个简单的存储过程示例,其中包含了参数为空的判断逻辑。 CREATEPROCEDURECheckParameter@InputParamNVARCHAR(50)ASBEGIN-- 判断输入参数是否为空IF@InputParamISNULLOR@InputParam=''BEGINPRINT'输入参数不能为空'RETUR...
假设我们需要判断一个名称是否为空,我们可以这样添加参数: CREATEPROCEDURECheckParameterIsNull@nameVARCHAR(50)-- 参数名称ASBEGIN-- 在这里编写具体的逻辑代码END 1. 2. 3. 4. 5. 6. 步骤三:判断参数是否为空 在存储过程中,我们可以使用IF语句来判断参数是否为空。下面是一个简单的判断参数是否为空的代码片...
The built in system functions in Microsoft SQL Server are used to perform system operations and return information about objects or settings in SQL Server. The ISNULL() function is used to check if a value is null and if it is will return the replacement value specified when calling the fun...
USE master; GO IF DB_ID (N'db_sales_test') IS NOT NULL DROP DATABASE db_sales_test; GO CREATE DATABASE db_sales_test; GO USE db_sales_test; GO CREATE PARTITION FUNCTION [pf_range_fact](int) AS RANGE RIGHT FOR VALUES (20080801, 20080901, 20081001, 20081101, 20081201, 20090101); ...
SQL_FN_SYS_IFNULLSQL_FN_SYS_USERNAME SQL_TABLE_TERM 1.0 包含表的数据源供应商名称的字符串;例如,“table”或“file”。此字符串可以位于大写、小写或混合大小写中。SQL-92 符合入口级别的驱动程序将始终返回“table”。 SQL_TIMEDATE_ADD_INTERVALS 2.0 一个SQLUINTEGER 位掩码,用于枚举驱动程序支持的时间戳...
[Output] Pointer to a buffer in which to return a value that indicates whether the parameter allows NULL values. This value is read from the SQL_DESC_NULLABLE field of the IPD. One of the following: SQL_NO_NULLS: The parameter does not allow NULL values (this is the default value). ...
If -G isn't provided, Integrated security or SQL Server authentication is used, depending on the presence of a -U user name parameter. The new --driver-logging-level command line parameter allows you to see traces from the go-mssqldb driver. Use 64 to see all traces. sqlcmd can now ...
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 Variable Assigning NULL value to column name using Case Statement of where is SQL SERVER 2008 atomic ...
Check if value exist before insert Check null in the expression in derived column Checking for Null Values in SSIS Derived Column Checking if folder is empty Checking SSIS variable of Object data type for NULL Value Clean CSV files before loading them CleanUP SSISDB execution Data Manually. Closin...