To respond to any change in the database schema. Syntax: DDL Trigger Copy CREATE TRIGGER trigger_name ON { DATABASE | ALL SERVER} [WITH ddl_trigger_option] FOR { event_type | event_group } AS {sql_statement}In the above syntax: ...
if to_char(sysdate,'day') in ('星期六', '星期日') or to_number(to_char(sysdate,'hh24')) not between 9 and 18(对between...and取反表示九点前,十八点后) thenraise_application_error(-20001,'禁止在非工作时间插入新员工');(raise是表示从数据库中抛出一个错误,所以不可以使用raise; raise_...
SQL Copy USE AdventureWorks2022; GO IF OBJECT_ID ('Purchasing.LowCredit','TR') IS NOT NULL DROP TRIGGER Purchasing.LowCredit; GO -- This trigger prevents a row from being inserted in the Purchasing.PurchaseOrderHeader table -- when the credit rating of the specified vendor is set to 5 ...
Applies to: SQL ServerThis article describes how to configure the nested triggers server configuration option in SQL Server by using SQL Server Management Studio or Transact-SQL. The nested triggers option controls whether an AFTER trigger can cascade. That is, perform an action that initiates ...
SQL USEAdventureWorks2022; GO IF OBJECT_ID ('Purchasing.LowCredit','TR') IS NOT NULLDROPTRIGGERPurchasing.LowCredit; GO-- This trigger prevents a row from being inserted in the Purchasing.PurchaseOrderHeader table-- when the credit rating of the specified vendor is set to 5 (below average...
SQL at FabCon Vegas Apr 1, 7 AM - Apr 3, 7 AM The biggest SQL, Fabric and Power BI learning event. March 31 – April 2. Use code FABINSIDER to save $400. Register today Training Module Use events and triggers in Dynamics 365 Business Central - Training ...
This topic has been moved.:Dynamic SQL in Triggers 0 Frederic Steinfels 11/17/2019 05:25PM This topic has been moved.:Trigger help - need to deduct values in one table column from another table after an order table is set to a certain value ...
SQL Copy USE AdventureWorks2022; GO IF OBJECT_ID ('Purchasing.LowCredit','TR') IS NOT NULL DROP TRIGGER Purchasing.LowCredit; GO -- This trigger prevents a row from being inserted in the Purchasing.PurchaseOrderHeader table -- when the credit rating of the specified vendor is set to 5 ...
None Specifies that there is no specific order in which the DML trigger should be fired. Used mainly to reset a trigger from being either first or last.The following example shows using sp_settriggerorder:Ikkopja sp_settriggerorder @triggername = 'MyTrigger', @order = 'first', @stmttyp...
What are Triggers in Salesforce? In Salesforce, triggers are referred to as Apex Triggers. These are distinct and available specifically for common and expected actions like lead conversions. Check out this YouTube Video on Salesforce Tutorial for beginners: A trigger in Salesforce is an Apex...