postgresql create procedure

MySQL has one and excellent syntax create TABLE ... like, you can quickly copy a table and create a copy of it. PostgreSQL also has a similar syntax and is more flexible, but pay attention to the details.First look at MySQL syntax: CREATE TABLE ... likeThe original table T1, with the following structure:+----------+---

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The MySql stored procedure created in MySQL is a new feature added from MySQL 5.0. The advantages of stored procedures are as follows. However, the most important thing is the execution efficiency and SQL code encapsulation. In particular, the SQL code encapsulation function. if there is no stored procedure, many SQL statements need to be organized when external programs access the database (such as PHP. Es

Tags: get title. NET Mail RAM knowledge Enter a statementThe MySQL stored procedure is a new feature that has been added since MySQL 5.0. The advantages of a stored procedure are a whole bunch. But the main thing is the execution efficiency and the SQL code encapsulation. In particular, the SQL Code encapsulation feature, if there is no stored procedure, when the

Postgresql has the following three ways to set the primary key increment, the following look at the same point and different points.--Method OneCREATE TABLE Test_a(ID Serial,Name character varying (128),Constraint pk_test_a_id primary key (ID));Notice:create TABLE would CREATE implicit sequence "Test_a_id_seq" for serial column "Test_a.id"Notice:create table/primary KEY would

1. Open the SQL Shell under the PostGIS installation path and the command Line dialog box will appear2. Enter login database such as user name password3. Typing the CREATE DATABASE command:CREATE DATABASE MyDatabase;4. Add a space extension to the database you just created, and then tap the following three commands. \c mydatabases;CREATE EXTENSION PostGIS;CREATE

IntroductionTypically, developers use T-SQL to create stored procedures, functions, and triggers for SQL Server. Currently, SQL Server 2005 fully supports the. NET Universal Language Runtime (CLR. This means that you can use. NET languages such as C # and VB. NET to develop SQL Server Stored Procedures, functions, and triggers. The integration of SQL Server and CLR brings us n many benefits, such as real-time compilation, type security, enhanced secur

SQL: MySql create FUNCTION, VIEW, PROCEDURE, mysqlprocedure Use geovindu; # function DELIMITER $ drop function if exists f_GetDepartmentName $ CREATE function f_GetDepartmentName (did int) returns nvarchar (400) begindeclare str nvarchar (100 ); select DepartmentName into str from DepartmentList where inclumentid = did; return IFNULL (str, ''); end; $ DELIMITER;

, Bookinforemarks, book Infoadddate,bookinfopublish, Bookinfoprice, bookkindlist.bookkindname,bookplacelist.bookplacename,f_ Getauthorname (Bookinfoauthor) from Bookinfolist,bookkindlist,bookplacelist where bookinfolist.bookinfokind= Bookkindlist.bookkindid and Bookinfolist.bookinfoplace=bookplacelist.bookplaceid; $$ DELIMITER; #删除 DELIMITER $$ DROP PROCEDURE IF EXISTS ' Geovindu '. ' Deletebookkind ' $$ CREATE