triggers

问题 I'm just getting started using GitHub, Gerrit, and Hudson(Jenkins) together. And I need some thoughts on workflow. We'd like to use GitHub as our main remote repo. We'd like to use Gerrit primarily for code reviews, but also for build triggers in Hudson. At the moment, though, I'm having some trouble thinking through the workflow for this and would like to hear what others have done themselves. Thoughts? 回答1: I haven't directly used Gerrit, but I like the idea of intermediate and specialized

问题 I know it may sound odd but is there any way I can call my trigger on ROLLBACK event in a table? I was going through postgresql triggers documentation, there are events only for CREATE, UPDATE, DELETE and INSERT on table. My requirement is on transaction ROLLBACK my trigger will select last_id from a table and reset table sequence with value = last_id + 1; in short I want to preserve sequence values on rollback. Any kind of ideas and feed back will be appreciated guys! 回答1: You can't use a

问题 I have the next mysql trigger: DELIMITER @@ CREATE TRIGGER Test_Insert BEFORE INSERT ON sat_clientLocation FOR EACH ROW BEGIN DECLARE cmd CHAR(255); DECLARE result int(10); SET cmd=CONCAT('/usr/bin/php ', '/var/www/html/poi/insertTest.php' , NEW.idLocation); SET result = sys_exec(cmd); END; @@ DELIMITER ; It's possible to use NEW.idLocation in my php file? I try some methods, but don't work. 回答1: According to that solution: SET cmd=CONCAT('/usr/bin/php ', '/var/www/html/poi/insertTest.php

问题 I am trying to create a SQL trigger function which should UPDATE a column when data is INSERTed INTO the table. The update is based on the values present in the values being INSERTed. I have the following table to store daily OHLC data of a stock. CREATE TABLE daily_ohlc ( cdate date, open numeric(8,2), high numeric(8,2), low numeric(8,2), close numeric(8,2), sma8 numeric(8,2) ); INSERT command: INSERT INTO daily_ohlc (cdate, open, high, low, close) values ('SYMBOL', 101, 110, 95, 108); When

问题 My question is same as in question heading and below is the code what I have tried. ALTER TRIGGER [dbo].[Entrega_Insert] ON [dbo].[Entrega] AFTER INSERT AS BEGIN SET NOCOUNT ON; DECLARE @DataEntrega DATETIME, @IdEncomenda INT, @QTDEncomenda INT DECLARE @IdVisita INT SELECT @DataEntrega = DataEntrega, @IdEncomenda = b.IdEncomenda FROM [dbo].[Entrega] AS a INNER JOIN [dbo].[Encomenda] AS b ON a.[IdEncomenda] = b.[IdEncomenda] INNER JOIN [dbo].[Visita] AS c ON b.[IdVisita] = c.[IdVisita] --INNER

问题 The program I am working on has a poorly designed backend and basically there are two different tables needed to hold the exact same information. I am trying to write a trigger that will update table B with the same information that was just updated in table A. Oh and this is using a MYSQL database I am not sure if I am just having a syntax error or if I am missing concepts, any help would be much appreciated... here is what I have as of yet DELIMITER $$ DROP TRIGGER IF EXISTS after_update_A;

问题 I'm trying to get this trigger to work: CREATE TRIGGER Transaction_insert BEFORE INSERT ON Transaction FOR EACH ROW WHERE Number = NEW.AccountNumber IF Account.CreditBalance + NEW.Amount < Account.CreditLimit THEN UPDATE Account SET CreditBalance = CreditBalance + NEW.Amount where Number = NEW.AccountNumber; ELSE SET NEW.Valid = 0 END IF; This is the error I get from myPHPAdmin. 回答1: Your IF needs to be a full SELECT to reference another table ( Account ) IF EXISTS (SELECT * FROM `Account` A

问题 I have a table with a primary key, auto_increment ID column. When I delete the row with the highest ID, for instance ID 100, I want to use that ID 100 for a new row only using a mysql trigger. How do I do that? When I delete, for instance ID 1 AND the highest ID is 100, I don't want to use ID 1 again. I do the delete and insert statement with different PHP calls. 回答1: You should set AUTO_INCREMENT table option, e.g. - DELETE FROM table_name WHERE id = 100; ALTER TABLE table_name AUTO

问题 I have difficulties in listening to the change event of a jQueryMobile slider. In this page, the event triggers correctly the event "slidestop": http://jsfiddle.net/2HEcY/ The same code in my page doesn't triggers anything: http://www.marianotomatis.it/test.php Can you see any problem in this code? <html> <head> <title>My Page</title> <meta name="viewport" content="width=device-width, initial-scale=1"> <link rel="stylesheet" href="http://code.jquery.com/mobile/1.2.0/jquery.mobile-1.2.0.min

问题 This is my first table it has 3 columns and all are entered by the user. No complication and it works fine. But there is another table and it is dependent on this table 3rd column. i.e. on room number column. Please ignore the names convention as i have not really followed any naming conventions. This is my second table and as you can see it has its last column as room number. please ignore name convention. this room number column is foreign key it is dependent on the 1st table entry or