TCL的COMMIT和ROLLBACK 2006 未经授权,禁止转载了解课程收藏讨论 分享 课程介绍 讨论 适合人群 SQL开发人员,数据库管理员,商业智能分析师,想往商业智能发展的有志人士 你将会学到 成为SQL的专家! 课程简介EduFancy+ 关注 EduFancy专注于国内各行业专业教育资源提供,利用大数据深度挖掘行业需求,通过与国际各个行业专家、...
百度试题 题目SQL功能中,事物控制 TCL的常见命令有() A.SELECTB.SAVEPOINTC.COMMITD.ROLLBACK相关知识点: 试题来源: 解析 B,C,D 反馈 收藏
百度试题 题目【多选题】SQL功能中,事物控制 TCL的常见命令有() A. COMMIT B. SAVEPOINT C. SELECT D. ROLLBACK相关知识点: 试题来源: 解析 COMMIT; SAVEPOINT; ROLLBACK反馈 收藏
For example, statements that use the commands, SELECT, INSERT, UPDATE, and DELETE. TCL (Transaction Control Language) These statements manage changes made in DML statements. For example, statements that use the commands, COMMIT, ROLLBACK, and SAVEPOINT. Clause Subsets of commands that ...
If you find this article valuable, please consider liking it and sharing your thoughts in the comments. Thank you, and happy coding. Commit Rollback SavePoint Set Transaction TCL Command TCL in SQL Transaction Control LanguageRecommended Free Ebook SQL Queries For Beginners Download Now! Similar ...
5.TCL—事务控制语言 commit(提交),rollback(回滚) (1)commit 提交事务 (2)rollback 回滚 事务是数据库中最小执行单元,由1-n条sql命令组成,组成一个事务的一组sql,是不可分割的原子操作,要么一起成功,要么一起失败。 数据库服务器,会针对每一个连接上来的客户端,开辟一小段内存空间(回滚段),用于暂时缓存...
TCL(Transaction Control Language) 事务控制语言或TPL事务处理语言:用于控制数据库的事务操作,关键字; COMMIT,SAVEPOINT,ROLLBACK等 CCL(Cursor Control Language)指针控制语言:像DECLARE CURSOR,FETCH INTO和UPDATE WHERE CURRENT用于对一个或多个表单独行的操作。多用于存储过程中对结果集的处理。
xa commit/rollback 'xid':根据准备阶段的结果提交或回滚事务。 在TDSQL中的赤兔界面,选择目标实例,“实例详情”页面上可以设置是否启用分布式事务(xa_support)。 2 TDSQL数据库准备 在已有TDSQL(分离版22)集群上创建了2分片的分布式实例(1主1备)。以下为DB节点和网关节点信息 ...
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