是否可以在主要的SQL数据库中回滚CREATE TABLE和ALTER TABLE语句？ [英] Is it possible to roll back CREATE TABLE and ALTER TABLE statements in major SQL databases?
问题描述
我正在开发一个发布DDL的程序。我想知道是否可以回滚 CREATE TABLE 和类似的DDL
I am working on a program that issues DDL. I would like to know whether CREATE TABLE and similar DDL can be rolled back in
- Postgres
- MySQL
- SQLite
- 等
- Postgres
- MySQL
- SQLite
- et al
描述每个数据库如何使用DDL处理事务。
Describe how each database handles transactions with DDL.
推荐答案
http://wiki.postgresql.org/wiki/Transactional_DDL_in_PostgreSQL:_A_Competitive_Analysis 提供了有关PostgreSQL的此问题的概述
http://wiki.postgresql.org/wiki/Transactional_DDL_in_PostgreSQL:_A_Competitive_Analysis provides an overview of this issue from PostgreSQL's perspective.
根据本文档，DDL是否具有事务性？
Is DDL transactional according to this document?
- PostgreSQL-是
- MySQL-不； DDL导致隐式提交
- Oracle Database 11g第2版及更高版本-默认情况下不存在，但是存在一种称为基于版本的重新定义的替代方法
- Oracle版本-否； DDL导致隐式提交
- SQL Server-是
- Sybase Adaptive Server-是
- DB2-是
- Informix-是
- Firebird（Interbase）-是
- PostgreSQL - yes
- MySQL - no; DDL causes an implicit commit
- Oracle Database 11g Release 2 and above - by default, no, but an alternative called edition-based redefinition exists
- Older versions of Oracle - no; DDL causes an implicit commit
- SQL Server - yes
- Sybase Adaptive Server - yes
- DB2 - yes
- Informix - yes
- Firebird (Interbase) - yes
SQLite也似乎也具有事务性DDL。我能够在SQLite中 ROLLBACK 一个 CREATE TABLE 语句。其创建表文档未提及任何特殊的交易陷阱。
SQLite also appears to have transactional DDL as well. I was able to ROLLBACK a CREATE TABLE statement in SQLite. Its CREATE TABLE documentation does not mention any special transactional 'gotchas'.
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