plpgsql return query

PL/pgsql (Procedural Language/PostgreSQL Structured Query Language) implements PostgreSQL ordbms when there are too many other statements. The syntax of Oracle Database contains PL/SQL statements, which is similar to linear regression.   More

Http://www.postgresonline.com/journal/archives/201-Using-RETURNS-TABLE-vs.-OUT-parameters.html--http://www.postgresonline.com/journal/archives/201-using-returns-table-vs.-out-parameters.html--ver:9.3 Geovin Du Tu--returning a single record using SQL

1. Return statementThere are three commands that can be used to return data from a function: RETURN RETURN NEXT RETURN QUERY 2. Return command syntax:RETURN RETURN expression;If you do not use the expression return command to

Look at the pl/proxy, a lot of documents, as a reference bar, reprinted two of them, this is

Symfoware Open System"DDL" (data definition Language)A data definition language that defines and manages the language of all objects in a SQL database. The main commands are create, alter, DROP, etc., the DDL is mainly used in the initialization of

  Author: icyriverSource: http://icyriver.net /? P = 176     PL/ProxyAndPostgreSQLThe structure relationship of the cluster can be clearly expressed. If you are not familiar with pL/proxy and PostgreSQL clusters, you can seeSkype plans for

PostgreSQL Stored Procedure return dataset instance Here we use an instance to demonstrate how to return a dataset from a PostgreSQL stored procedure. 1. Prepare the data table first. // Member_categoryCreate table member_category (id serial, name

Here is an example to illustrate how the PostgreSQL stored procedure returns a dataset. 1. Prepare data table First Copy Code code as follows: Member_category CREATE TABLE Member_category (ID serial, name text, Discount_rate real,

N-more SQL statements, but their own time, but everywhere is the pit ah, ah, ah!!!!!!!!!!!!!!!Want to write a get the latest ID value in the table.On the CodeCREATE TABLEDepartment (IDINT PRIMARY KEY not NULL, D_codeVARCHAR(

The time can be added and reduced directly in PostgreSQL: Query System Current Time: Select Now ();OrSelect Current_timestamp; SELECT now ():: Timestamp + ' 1 year '; --Current time plus 1 yearsSELECT now ():: Timestamp + ' 1 month '; --Current