procedure_demo$#DECLAREprocedure_demo$#BEGINprocedure_demo$#CREATETABLEtest1 (idint);procedure_demo$#INSERTINTOtest1VALUES(1);procedure_demo$#COMMIT;procedure_demo$#CREATETABLEtest2 (idint);procedure_demo$#INSERTINTOtest2VALUES(1);procedure_demo$#ROLLBACK;procedure_demo$#END$$;CREATEPROCEDUREprocedure...
Calling a stored procedure example Let’s take an example of calling a PostgreSQL stored procedure in Python. 1) Create a new stored procedure First, open the Command Prompt on Windows or Terminal on Unix-like systems. Second, connect to the suppliers database on the local PostgreSQL server:...
A different exampleThis is another example of stored procedure that will allow to insert a point with the public user role. This is most helpful in order to setup a point collector app.CREATE OR REPLACE FUNCTION insertpoint( lon numeric, lat numeric, tablename text ) RETURNS TABLE(cartodb_...
Example of using a stored procedure in a PHP application 1. Creating the PostgreSQL stored procedure The example program will call the following stored procedure, which adds two complex numbers and returns the result in INOUT parameters. Let's start by creating a stored procedure: CREATE OR REP...
proname = 'function_name')); For example, I want to show the source code of the functionfilm_in_stock: SELECT pg_get_functiondef(( SELECT oid FROM pg_proc WHERE proname = 'film_in_stock')); Using TablePlus GUI Tool for Postgres ...
Stored procedures reduce the overhead of compiling queries each time they’re executed Let’s show a practical example of the usage of stored procedures in SQL. 3.1. Practical Example For this demonstration, let’s create a stored procedure that updates the GPA of students in theStudenttable ba...
·If a Transact-SQL batch or stored procedure contains a call to a user-defined function or a call to dynamic SQL, for example using EXEC (string), the compiled XML Showplan for the user-defined function is not included in the table returned by sys.dm_exec_query_plan for the batch or...
System.Data.CommandType.StoredProcedure, newSystem.Data.IDataParameter[] { para }); 程序使用PDF.NET(PWMIS数据开发框架)的数据访问对象AdoHelper来进行相关的数据访问操作,它采用反射工厂模式,根据系统的配置实例化具体的数据访问类,这里使用的是PostgreSQL数据访问类。
In this example,myprocedureis used to insert just two values into a table. As the table structure gets more complicated, and you want to include error checking, the body of the stored procedure would be more complicated. But, the user's call would still just need to pas...
test-# EXECUTE PROCEDURE mytrigger(); CREATE TRIGGER test=# 1. 2. 3. 4. 5. 6. 7. 8. 9. 现在,让我们插入两行。“got url=” 通过我们的函数被打印出来: test=# INSERT INTO urls VALUES ('http://example.com/'); INFO: got url=http://example.com/ ...