postgresql delimiter

The SQL input consists of a series of commands . An order consists of a series of tokens , with a semicolon (";") End. The termination of the input stream also ends a command. Which tokens are valid depends on the syntax of the particular command.A

PostgreSQL tutorial (5): Functions and operators (1), postgresql Operators I. logical operators: Common logical operators include AND, OR, and not. Its semantics is exactly the same as that of logical operators in other programming languages. Ii.

Postgresql has added the External table access function since 9.1. This function allows the database to directly read files other than the database, such as csv or text files. Postgresql has added the External table access function since 9.1. This

Postgresql has added the External table access function since 9.1. This function allows the database to directly read files other than the database, such as csv or text files. DML is not supported for the moment. Postgresql has various plug-ins that

Password file for the PostgreSQL client command:Before giving other PostgreSQL client commands, we need to introduce the password file in PostgreSQL. This document is described in advance here because we will apply the file extensively in the

Compare the data imported from MySQL and PostgreSQL, evaluate the load file methods and time of MySQL and PostgreSQL on the virtual machine. Because it is the evaluation on the virtual machine, so the time is only for reference, don't be too real,

Product will be on-line, the project manager said to change the database, to the MySQL database contents all moved to PostgreSQL.There is a Python tool can be migrated (but the stored procedures cannot be migrated, the data type can not be flexible

Product will be on-line, the project manager said to change the database, to the MySQL database contents all moved to PostgreSQL.There is a Python tool can be migrated (but the stored procedures cannot be migrated, the data type can not be flexible

Postgresql has many built-in practical functions. The following describes the next combination and cutting function environment: PostgreSQL9.1.2CENTOS5.7final 1. composite functions 1. concata. introduction to concat (strany [, strany [,...])

String Functions:The string functions in PostgreSQL are: Calculate string length functions, string merge functions, string substitution functions, string comparison functions, find specified string position functions, and so on.1. Functions to count