How to query the names of all user-defined data tables in a database in PostgreSQL

How to query the names of all user-defined data tables in a database in PostgreSQL @ Forandever 2011-11-13 1. query through command line\ D database-- Obtain the names of all tables.\ D table name-- Get the table structure 2. query through SQL

Key points about transactions in PostgreSQL databases

PostgreSQL database   Transaction:1. PostgreSQL databases do not support transaction nesting, but support defining new storage points in the current transaction, and use the storage points to solve the need for transaction nesting. Save points can

Connection string for PostgreSQL

Http://www.mono-project.com/PostgreSQL#Some_Connection_Example Parameter Definition Description Example Server Hostname of the PostgreSQL Server Server = localhost Database Name of the

Configuration and use of postgresql in cygwin (zz)

Author: Takhisis @ smth Http://computer.mblogger.cn/abyss/ Be sure to keep yourself busy and don't want to worry about anything. Don't think about anything... Don't think about it. About PostgreSQL PostgreSQL is an object-relational database

Connect Linux C to the PostgreSQL database

# Include # Include # Include # Include String . H> Int Main () {pgconn * Conn; Const Char * Conninfo = " Host = localhost dbname = cloud user = cloud Password = cloud " ; // Char conninfo [100]; // Sprintf (conninfo, "dbname = % s

Simple PostgreSQL installation procedure

Download the window No Install Version at www.sqlsql.com and decompress it to the hard disk. the following commands are all in the bin directory. Step 1. initialize the databaseInitdb-d directory-e encoding [-u username] -- locale = CDirectory

PostgreSQL SQL statements

First, use superuser to connect to the database By default, the Super User is set to ipvs. The connection script command is Psql. This is in the bin directory of the installation directory. /Bin $ Psql Postgres -# Create a user. Create a

JIRA + fisheye + crucible + confluence + PostgreSQL

There are two more recent statements: (1)Implement management requirements through technology; (2) solve the problem through technology rather than people;   For this reason, I recently studied some IT tools, and Jira once again attracted my

Lock in PostgreSQL

Typedef struct lock{/* Hash key */Locktag tag;/* unique identifier of lockable object */ /* Data */Lockmask grantmask;/* bitmask for lock types already granted */Lockmask waitmask;/* bitmask for lock types awaited */Shm_queue proclocks;/* List of

PostgreSQL cross-Database Query

First, I declare that I have just entered the PostgreSQL camp from the MSSQL camp. I have been deeply impressed by MSSQL over the past few days! Go to the topic. In MSSQL, you can easily use select * From otherdb for cross-database (same server or

Netstream object for PostgreSQL Programming

A netstream object transmits audio and video streams between all online objects. If you only want to pass text chat content, you can use shared objects instead of using them. The basic attributes of this object are: Time until now, the number of

PostgreSQL connection problems

I have written programs in PostgreSQL and npgsql recently. Since there are more than 300 customers, some of them cannot be connected. When max_connection is adjusted to 500, the problem is solved, but the memory usage is also soaring. When some data

PostgreSQL Performance Optimization

PostgreSQL performance optimization http://blog.sina.com.cn/s/blog_681cd80d0100md5o.html   Every time I read the settings of postgresql, it seems that I forgot it every time. It will take a while. I finally decided to start my blog today.PostgreSQL

Table replication statements for MySQL and PostgreSQL

In MySQL, copy the existing table structure to a new table: Method 1:Create Table custnew1 like MERs MERS; In this method, only the structure of the table to be copied and the structure of the new table can be used to add new columns while

PostgreSQL 8.0.2 application report)

Overview PostgreSQL 8.0.2 has been officially released. This version is widely recommended and has been directly supported by the windows2k/xp platform since 8.0, the pgadmin III Graphic Interface database management tool (open-source) is attached

In Linux, PostgreSQL forgets the password and logs on to another user. phpMyAdmin does not allow logon by default.

Postgres allows other Linux users to log on through the command line: 1. Modify the file pg_mirror.conf in the/usr/local/pgsql/data directory. Local all ident Omicron   2. Modify the file pg_ident.conf in the/usr/local/pgsql/data directory to

Use postgis to insert spatial data into PostgreSQL

Create a project and reference npgsql to define the connection parameters.   Code highlighting produced by Actipro CodeHighlighter (freeware)http://www.CodeHighlighter.com/-->String strconn = @ "Server = 127.0.0.1; database = template_postgis;

PostgreSQL User-Defined Functions

CREATE OR REPLACE FUNCTION isdigit(text) returns BOOLEAN AS 'select $1 ~ ''^(-)?[0-9]+$'' as result' LANGUAGE sql; --test functionSELECT isdigit('1') --return trueSELECT isdigit('A') --return false       CREATE OR REPLACE FUNCTION isString(

Configure RODBC to access the PostgreSQL database

After taking a lot of detours, I finally fixed this issue and posted it here to share with you. 1: download and install the PostgreSQL ODBC driverHttp://www.postgresql.org/ftp/odbc/versions/msi/2: Configure ODBC to connect to the PostgreSQL

Advantages and features of PostgreSQL

PostgreSQL is the world's most advanced open-source database system. It provides multi-version parallel control and supports almost all SQL components (including subqueries, transaction and user defined types and functions), and can obtain a very

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