triggers

问题 I am using triggers for the first time. If I update a field in a table by an update trigger on the same table, with this spark a loop? Does sql server guard against this recursive behavior? Thanks 回答1: This page (search for RECURSIVE_TRIGGERS ) describes some of the database settings you can use to modify this behavior. Also, one way to safeguard your procedures is to use either the UPDATE() function or the COLUMNS_UPDATED() function. If, for example, you have a table with columns A , B , and

问题 I written a trigger on smslog table ALTER TRIGGER [dbo].[mytrigger] ON [dbo].[smslog] AFTER INSERT AS Declare @MobileNo int Declare @smstext as varchar(300) Begin set @MobileNo = ( select mobile from inserted) set @smstext = (select smstext from inserted) set @sResponse = 'test' Exec pr_SendSmsSQL @MobileNo, @smstext, @sResponse END Stored procedure is create procedure [dbo].[pr_SendSmsSQL] @MobileNo varchar(12), @smstext as varchar(300), @sResponse varchar(1000) OUT as BEGIN Declare @iReq

问题 What does Trigger in wrong schema mean ? DELIMITER $$ CREATE TRIGGER `wordpress_database1`.`insert_user_from_database2` AFTER INSERT ON `wordpress_database2`.`wp_users` FOR EACH ROW BEGIN INSERT INTO `wordpress_database1`.`wp_users` ( ID, user_login, user_pass, user_nicename, user_email, user_url, user_registered, user_activation_key, user_status, display_name) VALUES ( New.ID, New.user_login, New.user_pass, New.user_nicename, New.user_email, New.user_url, New.user_registered, New.user

问题 I am working on a homework problem. I am running into compilation issues with my trigger and am having trouble understanding how to create a trigger that references a sequence and another table, and insert those values into a log table that I've created. I have read that using SERIAL not null on the Table column entry may eliminates the need for a sequence and referencing table, but I need that for my homework to work. I need some help figuring out how to get my trigger to compile. It is

问题 I need solution for the following: 1) Customer places order 2) Store owner recieves email WITHOUT price info (e.g. packing list) What files do I need to edit (I've read lots of posts and they don't seem to mention the file paths). Thx 回答1: Two possible ways to achieve that: You can create a model rewrite for the class Mage_Sales_Model_Order and override the function Mage_Sales_Model_Order::sendNewOrderEmail by sending an email to the shop owner using a different template You can set the

问题 I need solution for the following: 1) Customer places order 2) Store owner recieves email WITHOUT price info (e.g. packing list) What files do I need to edit (I've read lots of posts and they don't seem to mention the file paths). Thx 回答1: Two possible ways to achieve that: You can create a model rewrite for the class Mage_Sales_Model_Order and override the function Mage_Sales_Model_Order::sendNewOrderEmail by sending an email to the shop owner using a different template You can set the

问题 Ok, my situation is like this: I have a table named Company, and I want to add a trigger after every record I add in this table that checks if the column Name does not end with 'LTD' then add 'LTD' at the end of the Name. I get an error saying Incorrect syntax near ')'. How would I do this? Create Trigger [Add_LTD] on Company After Insert As Update Company Set Name = Name + ' LTD' If Exists (Select Name From Inserted Where Name Not Like '% LTD') 回答1: You would need something like this: CREATE

问题 Ok, my situation is like this: I have a table named Company, and I want to add a trigger after every record I add in this table that checks if the column Name does not end with 'LTD' then add 'LTD' at the end of the Name. I get an error saying Incorrect syntax near ')'. How would I do this? Create Trigger [Add_LTD] on Company After Insert As Update Company Set Name = Name + ' LTD' If Exists (Select Name From Inserted Where Name Not Like '% LTD') 回答1: You would need something like this: CREATE

问题 What's the shortest xamly way to make a ToggleButton contents depend on its checked state? In WPF I'd probably go for a DataTrigger which doesn't exist in Silverlight. I tried the following, but it doesn't work, as soon as I include the triggers, the binding to the source is broken. The triggers won't work anyway. <ToggleButton xmlns:i="http://schemas.microsoft.com/expression/2010/interactivity" xmlns:ei="http://schemas.microsoft.com/expression/2010/interactions" IsChecked="{Binding

问题 I cannot seem to create a trigger. I have tried it the two ways below for the update. I keep getting a syntax error with the insert statement. I have searched forums and web searches for the past 4 hrs with no change. There is alot more code to this, It basically repeats itself. Any help would be appreciated. Thank You. I am running MySQL 5.0 and acessing via phpMyAdmin 2.8.2.4 as Administrator/Root. TRY 1 (with and without qoutes on all fields and names) CREATE TRIGGER insert_classes AFTER