migrate mysql to postgresql

Label:1. Environment preparation 1.1 Win7 x64 system 1.2 Postgresql-9.1.13-windows-binaries.zip and Mysql-5.5.46-win32.zip 2. Installation process 2.1 Postgresql-9.1.13 installation process ① extract the Zip-format installation package to a folder, such as D:\pgsql. ② creates a new data folder under the D:\postgresql f

started by the SystemSu-postgresql-c "$ pgsqlcomm"# Output command, promptingEcho $ pgsqlcomm If Su encounters a problem, disable SELinux for debugging.The configuration file is inVI/etc/sysconfig/SELinuxModifySELinux = disabledSelinuxtype = strictRestart debuggingCan two common users su each other?Note:A mistake I madeWhen the system prompts that I cannot use the su command, I went to LS-L/bin/su to find that there was a problem with its permissions

Original article: Http://www.phpwell.com /? P = 174 PostgreSQL MySQL Service startup:1) # service PostgreSQL start2) #/etc/init. d/PostgreSQL start3) # Su-PostgreSQL$ Pg_ctl startPostgreSQL process number: 1210, 1207, Service startup:1) # s

Create the same test table and data in MySQL (5.5.8) and PostgreSQL (9.0:Create Table test_gbk_char ( Id int, Username varchar (64) ); Insert into test_gbk_char values (1, 'qingxia '), (2, 'Man Yu'), (3, 'chu hong '); After completing the preceding steps, check the character sets and their verification rules: MySQL (I did not specify the validation rules and use

with "\" in psql. -bash-4.1$ psql -E postgres psql (8.4.20) Type "help" for help. postgres=# \d ********* QUERY ********** SELECT n.nspname as "Schema", c.relname as "Name", CASE c.relkind WHEN 'r' THEN 'table' WHEN 'v' THEN 'view' WHEN 'i' THEN 'index' WHEN 'S' THEN 'sequence'WHEN 's' THEN 'special' END as "Type", pg_catalog.pg_get_userbyid(c.relowner) as "Owner" FROM pg_catalog.pg_class c LEFT JOIN pg_catalog.pg_namespace n ON n.oid = c.relnamespace WHERE c.relkind IN ('r','v','

*unique ' > Key.sql Generate a separate file for all foreign key statements (this step can be omitted, followed by other methods)Cat Table_new.sql | Egrep ' \-|^\s*constraint ' > Constraint.sql Remove the key and constraint statements and generate a new file Table_last.sqlCat Table_new.sql | Sed ' s/^\s*key.*$//' | Sed ' s/^\s*constraint.*$//' | Sed ' s/^\s*unique.*$//' | Sed '/^$/d ' > Table_last.sql Convert line breaksUnix2dos Table_last.sql Copy the file to Windows and use the Notepad

If you cannot back up a MySQL or PostgreSQL database every day, you should back up the database once a week. For many enterprises, database information represents the website content and other important data. Therefore, it is very important to maintain data backup. Fortunately, both MySQL and PostgreSQL provide If you

We are all familiar with MySQL, and PostgreSQL is not so famous. in fact, they are two similar relational databases. postgreSQL was originally named Postgres. After some improvements, it was renamed PostgreSQL. for details, visit the official website. MySQL Official Website:

1. How to migrate structure and data? Esf_dbcv_pro_102019.exe is really a good thing. It's a versatile data structure and content conversion tool, and I didn't find it hard to convert it. Of course, it also claimed that the field type converted from SQLite was incorrect. Ii. How to deal with the differences in syntax? Limt in MySQL: Select * From t_resource_base limit 100,10000; The statement is rewrit

Label:MySQL's 2 commonly used functions Unix_timestamp () and From_unixtime PostgreSQL are not available, but with PostgreSQL's powerful extensibility It is easy to solve problems.Words far away, in front of the eyes, the document look carefully, the question Ren solution. PostgreSQL questions for extract and date_part to take epochThatUnix_timestamp () = Round (Date_part (' Epoch ', Now ()))From_unixtime (

Tags: mysql res font erb span digital time hsql bugIn the process of changing the bug, the SQL statement error, but a look at the back of the console, and did not burst the previous specific database error reasons, butSqlerrorcodes loaded: [DB2, Derby, H2, HSQL, Informix, Ms-sql, MySQL, Oracle, PostgreSQL, Sybase]At first I thought it was a configuration file loa