triggers

问题 I am using phpmyadmin. I am using a trigger in mysql which calls a php script after inserting something in a table. But i cant create the trigger it shows an error msg.. #1064 sql syntax error Help me with this... My code inside a trigger DECLARE result INT; SET result=select sys_exec('C:/xampp/php/php.exe C:/xampp/htdocs/mysite/hello.php'); 回答1: You should use something like select (This is why you get the syntax error.) And you should use some executable what will run that PHP file. (EG PHP

问题 I am using phpmyadmin. I am using a trigger in mysql which calls a php script after inserting something in a table. But i cant create the trigger it shows an error msg.. #1064 sql syntax error Help me with this... My code inside a trigger DECLARE result INT; SET result=select sys_exec('C:/xampp/php/php.exe C:/xampp/htdocs/mysite/hello.php'); 回答1: You should use something like select (This is why you get the syntax error.) And you should use some executable what will run that PHP file. (EG PHP

问题 i am making a trigger in PL-SQL to restrict employees in section/dept on my employee entry form i get ORA-01403: no data found . please anyone help me create or replace trigger DEPT_STRENTH after insert on empmasterinfo for each row DECLARE -- local variables here EMP_Count NUMBER; MAX_Strength NUMBER; V_Mainid VARCHAR2(100); V_orgelementname VARCHAR2(100); BEGIN --taking value from form V_Mainid := :new.mainid; V_orgelementname := :new.orgelementname; --Comparing values with existing select

问题 I have three datatables: comment, blog and user. I don't know much about Triggers in MySql, but is it possible to sum up the counts of every Row in comment and blog when a new Row is inserted or deleted? E.g. blog has 3 entries and comment has 5 entries. When I delete one comment now, it should update the record 'post' in user to 7 by counting the entries in blog and comment by the username. comment table rows: id | cdate | edate | author | email |status | content | url | bid | level blog

问题 I have three datatables: comment, blog and user. I don't know much about Triggers in MySql, but is it possible to sum up the counts of every Row in comment and blog when a new Row is inserted or deleted? E.g. blog has 3 entries and comment has 5 entries. When I delete one comment now, it should update the record 'post' in user to 7 by counting the entries in blog and comment by the username. comment table rows: id | cdate | edate | author | email |status | content | url | bid | level blog

问题 After researching triggers, I've only come up with thing showing how to update, insert and delete. It seems like that's even part of the syntax itself. DB2 Docs on Triggers Is there any kind of trigger, or something similar, which would let me track a larger set of actions, things like SELECT and ALTER TABLE ? We (unfortunately) share a database with some teams which we don't strictly trust to not do things like run insane SELECT statements (locking up the databases) or ALTER TABLE without us

问题 i need a trigger that prevent some data from inserting in table According to a condition , before inserting any row in the table like this code create Trigger trigger_name on table_name for insert AS Begin if (true) insert into table_name values () End 回答1: Use Instead Of Insert trigger and exists operator to validate the rows that meet the condition CREATE TRIGGER trigger_name ON table_name Instead OF INSERT AS BEGIN INSERT INTO table_name SELECT * FROM inserted WHERE EXISTS (SELECT 1 WHERE

问题 I am going create a trigger in xampp. CREATE TRIGGER testref BEFORE INSERT ON test1 FOR EACH ROW BEGIN INSERT INTO test2 SET a2 = NEW.a1; DELETE FROM test3 WHERE a3 = NEW.a1; UPDATE test4 SET b4 = b4 + 1 WHERE a4 = NEW.a1; END; but I have got errors: CREATE TRIGGER testref BEFORE INSERT ON test1 FOR EACH ROW BEGIN INSERT INTO test2 SET a2 = NEW.a1; MySQL said: Documentation #1064 - You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the

问题 This question already has answers here : Executing Google Apps Script Functions from Mobile App (2 answers) Closed 3 months ago . I have a code that lets people jump to the current date row, when opening my sheet. I solved the problem on desktop in the following way: Previous solution Now this should also work in the same way on the iOS and Android App Google Sheets. However, nothing happens if I open the sheet in the App. Does someone know how to trigger jumping to the current date row if

问题 I would like to create barcode macros - if the user scans a certain barcode, that would run a script. The barcode can be any character string, just to trigger the script. Any ideas? Thanks in advance! 回答1: To run a script based on a specific input (e.g. keyboard) do this: Example of scanned string: asdkffasdf :?*:asdkffasdf:: SoundBeep, 500,500 MsgBox, String asdkffasdf has been scanned Return 来源： https://stackoverflow.com/questions/15177112/autohotkey-barcode-macro-how-to-trigger-a-script-if