PostgreSQL

It is also the same table and data that used the last MySQL stored procedure to implement the Oracle Adjacency model tree processing method instance. PostgreSQL prides itself on being the most Oracle-like database, so most of the statements can be

From: http://bbs.chinaunix.net/thread-955564-1-1.html Reference documentsHttp://bbs.chinaunix.net/viewthr ... page%3d1#pid6997819Http://topic.csdn.net/t/20050617/12/4089010.htmlPostgreSQL Data SynchronizationSLONY1 is a replication technology based

1. Installing the Postgres database on the standby server does not require initialization.installation process See: http://www.cnblogs.com/ilifeilong/p/6979288.html2. Create a replication user with replication permissions on the primary

To install

How to get the number of rows affected by the normal operation, PostgreSQL inside has a built-in variable diagnostics and Row_count can do this. First, the environment: Db:9.4beta3 Second, prepare: postgres=# CREATE TABLE test (id int); CREATE

SOURCE side to open the target of the relevant access rights target: 1. Create a view of the remote table create view V_bill_tbl_version_update_control_info as SELECT * from Dblink (' hostaddr= 10.10.10.8 port=4321 dbname=postgres user=postgres

Today, open source PostgreSQL ...This is the PostgreSQL official website, you can download the corresponding versionhttp://www.postgresql.org/Here's APostgreSQL 9.3.1 Chinese HandbookHttp://www.postgres.cn/docs/9.3/index.htmlPostgreSQL 9.3.1 Chinese

PostgreSQL code Analysis, query optimization section.Here the parts of the canonical predicate expression are sorted out, and the order of reading is as follows:One, PostgreSQL code Analysis, query optimization section, canonicalize_qualTwo,

theBucardoProject have released itsNagios Plugins for PostgreSQLAnd we can extract from them this nice view on order to check for table and indexbloat into ourPostgreSQLdatabases:Here is a script to check the usage of the tablespace:CREATE OR

The various load file modes and time of MySQL and PostgreSQL were evaluated on the virtual machine. Because it is a test on the virtual machine, so time only to do the reference, not too serious, look good.MySQL Tools:1. Bring your own Mysqlimport

/var/lib/pgsql/data/pg_hba.confInstallation and configuration of the CentOS 6.3 under

The various load file modes and time of MySQL and PostgreSQL are assessed on the virtual machine. Because it is a virtual machine on the evaluation, so time only for reference, not too serious, look good.MySQL Tools:1. Bring your own Mysqlimport

4.5 Make stream replication more robustWhen connecting to master, the first thing slave to do is catch up with master. But is this going to work all the time? We've seen that we can use a mix of stream-based and file-based settings. This gives us

                                   NanyiDate: December 22, 2013Since MySQL was acquired by Oracle, PostgreSQL has become the first choice for open-source relational databases.This article describes the installation and basic usage of PostgreSQL for

PostgreSQL 9.2 added a native JSON data type, but didn ' t add much else. You ' ve got three options if your actually want to do something with it: Wait for PostgreSQL 9.3 (or use the beta) Use the PLV8 extension. Valid option, but more

Background: initial exposure to postsql, all fields are capitalized. The postsql field must be in lower case. Otherwise, the following error occurs: Caused by: Org. postgreSQL. util. psqlexception: Error: column "loginid" of relation "userinfo"

It took nearly two days to upload the space-based documents in batches. The original document was originally stored in the folder under the website directory as a file, and then stored in the bytea field of PostgreSQL. This field is equivalent to

PostgreSQL LinuxInstallation and use, simple manual 1. configuration method: 1First download any version of postgresql for Linux x86_64 Wget http://downloads.enterprisedb.com/postgresql/postgresql-8.4.1-1-linux-x64.bin 2, Text mode installation

I used MySQL and wanted to try PostgreSQL. It is said that it is also very powerful. I searched the internet for related Chinese books. Unfortunately, there are far fewer books than MySQL, however, I found documents translated by volunteers on the

The code is as follows:Copy code Instance description3.1 view the number of bytes required to store a specified valueDavid = # select pg_column_size (1 );Pg_column_size----------------              4(1 row)David = # select pg_column_size (10000 );