oracle to postgres migration

supports simple function export, where the Connect by syntax is a syntax not supported by Postgres; The export does not modify; Such code needs to be modified before Postgres executes. This revision code requires your development skills. To be continued .....If you know more about ORA2PG, you can visit the official documentation. "FAQ" [[Email protected]_222 ~]# ora2pg-c/etc/ora2pg/ora2pg.confinstall_drive

Tags: handle toe test connect ant Import Export command exp GREWhat this article contains: Use commands to manipulate import and export of Oracle, Postgres, MySQL, including logging on to dataNote: I am using the Center OS operating system in the company, so both Oracle and Postgres are used in Linux and not tested in

$password-c $table $recovery _dir Six, Postgres: $targethost $port $user $dbname $filename $recovery _file IP Address Port User name Database name Backup files Recover files Backup: Pg_dump-c-b-h $targethost-P $port-U "$user" $dbname > $filename Recovery: psql-h $targethost-P $port-U "$user"-D $dbname-F $recovery _file Copyright NOTICE: This article for B

Mysql, sqlsever, oracle, redis, mongo, postgres and other database backup and recovery commands, sqlseverredis The following is a simple example of how to back up and restore each database. For more detailed parameters and configurations, refer to relevant information. I. mysql: Parameter description: $ User $ Password $ Targethost $ Port $ Charset $ Dbname $ Table $ Filename

Aggregate functions do not need to appear in group. However, for a direct select field, Postgres requires the group by field. Some databases do not need this field, such as SQL lite. 2. Postgres's replacement for the decode function in Oracle: case when ..... 3. Type values such as flag are directly stored as int in dB, and the bitwise AND operator of S can be directly calculated. 4. Count (expr) If expr i

Oracle Database migration-basic and oracle database migrationOracle Database migration-Basics As a developer, We must master database knowledge. However, the company's database is maintained by a dedicated DBA. Generally, we provide an environment address, and then we write crud SQL. In addition, the company's product

In the actual work we often encounter some Oracle database performance is low, of course, the reasons for the low performance of Oracle database is various, we can through some correct design and diagnosis to try to avoid some Oracle database performance is not good, Row migration (Row

Scenario: If varchar and VarChar2 are modified more often, and the modified data length is different each time, this can cause a "row migration" phenomenonConcept:Row chaining and row migration (row migration)When a row of data is too long to be inserted into a single block of data, there are two things that can happen: row chaining or row

, such as how many records are in a table, how many relationships are on the table, how many tables are migrated, and so on. Depending on the characteristics of the table and the specific situation, we should use different methods to clear the row migration. I'll cover the various ways to clear row migrations and the different situations they apply to each of them. Method One: Traditional method of clearing row m