procedure

as the title suggests, include out the map-reduce framework if i want to trigger an event to run a consistency check or security operations before a record is inserted, how can i do that with MongoDB? John Powell MongoDB does not support triggers, but people have created solutions around them, mostly using the oplog, though this will only help you if you are running with replica sets, as the oplog is a capped collection that keeps track of data changes for the purposes of replication. For a nodejs solution see: https://www.npmjs.org/package/mongo-watch or see an earlier SO thread: How to

过程/函数： //显示数据库中所有存储的存储过程基本信息，包括所属数据库，存储过程 show procedure/function status [like 'pattern'] //从系统表中查询某一存储过程的相关信息 select * from mysql.proc where name = 'procedure_name' //创建过程 create procedure count_user() select count(*) as user_number from mysql.user; //调用过程 call count_user(); //删除过程 drop procedure procedure_name //指定的存储过程的创建信息 show create procedure procedure_name 视图：视图作为一张表的查询封装，可以很好的起到中间组件的作用，其实视图也是一张表，虚拟表 //创建视图 create view user_view as select host, user from mysql.user; //使用视图 select * from user_view [where condition.....] //删除视图 drop view user_view //查看视图 //show table status

Procedure FunctionX, Line 345 Invalid use of a side-effecting operator 'EXECUTE STRING' within a function. I get the above error when I execute a dynamic statement inside a function in SQL Server 2012. Is there a workaround for this? Any tricks? PS: The sproc (stored procedure) is much too lengthy for its body to be inserted as-is inside the function. DECLARE @execsql NVARCHAR(2000) Set @execsql = 'INSERT INTO @TABLE1 EXEC SPROC1 ' + @ID_COMPANY + ',' + @ID_COUNTRY exec (@execsql) Many thanks in advance. Also, I need to be able to delete inside the function as well. I know this contradicts the

I have a view t with me which has a column for table name and another column which has where clause condition. id| name|table_in| where_clause 1 | Sam | t1 | age = 22 2 | John| t2 | age = 23 and sex = 'male' and so on... Now, I have put the records in a cursor and I want to run each query. create or replace procedure create_cursor is CURSOR v_records is select * from t ; begin FOR temp IN v_records LOOP INSERT INTO myTable (id, name) select temp.id, temp.name from temp.table where temp.where_clause; END LOOP; end; / myTable is another table in which I want to put the records for next purpose.

I am trying to make a stored procedure using mySQL. This procedure will validate a username and a password. I'm currently running mySQL 5.0.32 so it should be possible to create procedures. Heres the code I've used. All I get is an SQL syntax error. GO CREATE PROCEDURE checkUser (IN @brugernavn varchar(64)),IN @password varchar(64)) BEGIN SELECT COUNT(*) FROM bruger WHERE bruger.brugernavn=@brugernavn AND bruger.pass=@Password; END; Thank you in advance I figured it out now. Here's the correct answer CREATE PROCEDURE checkUser ( brugernavn1 varchar(64), password varchar(64) ) BEGIN SELECT