triggers

问题 I have a table in mysql database where I am calculating New Owed Balcance based on the interest + amount borrowed... I want it to be that when the interest is altered the new owed balace changes I am using Triggers but it does not seem to update it when the interest changes DELIMITER | CREATE TRIGGER updateloan BEFORE INSERT ON loan FOR EACH ROW BEGIN SET NEW.app_amnt_owed = NEW.app_intrst +NEW. app_ln_amnt; END; | 回答1: CREATE TRIGGER updateloan_update BEFORE UPDATE ON loan FOR EACH ROW SET

问题 Ok I'm very new at SO and and reasonably new with JS and Sheets. I am writing a sheet for work that runs over 3 shifts with a front page and 4 sheets for each shift. Each corresponding sheet for every shift is identical except for the shift time, AM, PM, and NT. Having to deal with some fat fingered people I thought it would be best to protect the sheets and open ranges that can be filled in. On start up only the front page shows. I supply a menu with Start and End shift options. Run Start

问题 We have a database [NDB] which has migrated records from legacy database [LDB]. Tables in [NDB] has columns in the tables in [LDB] and some new columns. However the column naming standard is different in [NDB]. The prefix “tlb” is removed from table names in [NDB] as well as underscores are removed from column names in [NDB]. The [NDB] is loaded using SSIS with [LDB] as the source. The [NDB] is SQL Server 2008 whereas [LDB] is SQL Server 2000 There were two applications using legacy DB [LDB].

问题 So I have an external script that will sometimes input something into a sql database throughout the day (usually about 3 times a day, but could potentially update ever minute) I need to find a way to make the html page (that displays the sql entries) refresh automatically when there is a new entry that's added. Any suggestions for PHP and SQL? I was thinking Ajax, but I'm pretty sure I will need to do a full page refresh, because it will update images too. 回答1: You need a way to let the

问题 First, I've got SConstruct file like this: Object('a.s') Program('mya','a.o') I run scons, it generates 'mya'. OK. Then I change my SConstruct to be: Object('a.s',CCFLAGS='-DHello') Program('mya','a.o') Run scons again. Nothing is done: scons: Reading SConscript files ... scons: done reading SConscript files. scons: Building targets ... scons: `.' is up to date. scons: done building targets. This is quite weird to me. When I used make or msbuild systems, whenever there's argumenet change in

问题 i have a table as below Table name: sda_user_eform_data ack_no Name Description 1 name1 This is name1 2 name2 This is name2 3 name3 This is name3 i have another table sda_user_eform_data_bckup which has exactly the same structure as sda_user_eform_data. I want to store only 5 rows(latest rows) in the sda_user_eform_data and whenever the ackno is greater than 5 the old values should be moved to the second(sda_user_eform_data_bckup) table. For this first i have copied all the rows from sda_user

问题 I don't know why in the database there are 2 triggers with name crazy 'BIN$7cCqyWWLJxbgQAEPUFlF+g==$0', 'BIN$7cK199OiZ4jgQAEPUFkgKA==$0' and try DROP TRIGGER BIN$7cCqyWWLJxbgQAEPUFlF+g==$0; but I can't because the name have a '+' How Can delete these triggers?, i use oracle 10g 回答1: It's already dropped and in the recycle bin, which you can purge if you really need to. 来源： https://stackoverflow.com/questions/20669029/how-to-delete-trigger-in-oracle-that-contain-special-character

问题 I have a table ident, and I also have a table ident_hist, which just keeps a log from the table ident. The table ident gets altered a lot, so I want to add the new columns to ident_hist dynamically as well. I have created a procedure which does that: create or replace procedure prc_create_hist_tabel(p_naam_hist_tabel in varchar2, p_naam_tabel in varchar2) is cursor c is select 'alter table ' || p_naam_hist_tabel || ' add ' || column_name || ' ' || data_type || case when data_type = 'DATE'

问题 win32 API QueryServiceConfig2 function supports the SERVICE_CONFIG_TRIGGER_INFO structure to get event(s) that trigger the service startup. However, python's win32service.QueryServiceConfig2() does not list such value as a parameter option. Is it possible to get that information with the win32service module? 回答1: Unfortunately, no. Here's a simple code snippet ran under Python 3.5 and PyWin32 v221 : #!/usr/bin/env python3 import win32service if __name__ == "__main__": for name in dir

问题 This style correctly fades my toolbar in or out based on the changing of a ViewModel Property: <Style x:Key="PageToolBarStyle" TargetType="Border"> <Style.Triggers> <DataTrigger Binding="{Binding PageToolBarVisible}" Value="true"> <DataTrigger.EnterActions> <BeginStoryboard> <Storyboard> <DoubleAnimation Storyboard.TargetProperty="Opacity" From="0.0" To="1.0" Duration="0:0:2"/> </Storyboard> </BeginStoryboard> </DataTrigger.EnterActions> <DataTrigger.ExitActions> <BeginStoryboard> <Storyboard