A COMMIT command in Structured Query Language(SQL) is a transaction command that is used to save all changes made by a particular transaction in a relational database management system since the last COMMIT or
Query OK, 0rowsaffected (0.00 sec) mysql>callprc_insert(10000000); Query OK, 1rowaffected (7min1.31 sec) mysql>commit; Query OK, 0rowsaffected (32.24 sec) mysql> 在上面SQL执行的时候,使用下面脚本一直观察慢查询日志,就会发现它会出现只有commit的这种现象。如下截图所示 # tail -60f /mysql_data...
提交当前事务并为其关联注释: obclient>COMMIT COMMENT'Transaction code 001 in question, Please contact Zhang XX';Query OK,0rows affected SQL 实践和建议 预留关键字(MySQL 模式) 预留关键字(Oracle 模式)
query — they cannot start or commit that transaction, since there would be no context for them to execute in. However, a block containing an EXCEPTION clause effectively forms a subtransaction that can be rolled back without affecting the outer transaction. 其意义是PostgreSQL的函数总是默认为一个...
5 rows in set (0.02 sec) 通过插入数据(insert into)来查看begin和rollback的用法: mysql> begin -> ; Query OK, 0 rows affected (0.00 sec) mysql> insert into star (name,time,scores,country) values ("LG",now(),78,"中国"); Query OK, 1 row affected, 1 warning (0.02 sec) ...
MysqlIO.sqlQueryDirect(MysqlIO.java:2736) at com.mysql.jdbc.ConnectionImpl.execSQL(ConnectionImpl.java:2486) - locked <0x00000006c7294d98> (a com.mysql.jdbc.JDBC4Connection) at com.mysql.jdbc.ConnectionImpl.commit(ConnectionImpl.java:1555) - locked <0x00000006c7294d98> (a com.mysql.jdbc....
mysql> ROLLBACK; Query OK, 0 rows affected (0.00 sec) mysql> SELECT * FROM customer; +---+---+ | a | b | +---+---+ | 10 | Heikki | +---+---+ 1 row in set (0.00 sec) mysql> Transactions in Client-Side Languages In APIs such as PHP, Perl DBI, JDBC, ODBC, or th...
query 剩下的字节 DDL语句 看起来还是比较简单的. 其实解析到这里就差不多了, 毕竟已经拿到了的DDL语句. 但还有个status vars 在那占了个大头, 我们还是来解析看吧. STATUS VARS 官方注释信息存在部分问题, 我们以实际源码为主 STATUS VARS 格式为 KEY-VALUE格式, KEY标识哪种类型, VALUE为该类型的值. 只能...
mysql>INSERTINTOdt(id, name)VALUES(3,'John'); Query OK,1rowaffected (0.01sec) {'label':'group_commit_a145ce07f1c972fc-bd2c54597052a9ad','status':'PREPARE','txnId':'181508'}-- 不可以立刻查询到导入结果。mysql>SELECT*FROMdt;EmptySET(0.01sec)-- 过10 秒后执行查询,可以查询到,可以...
execute("INSERT INTO INTS(k, v) values(1, 1)"); // We haven't committed anything yet - this check shows that autoCommit flag is in effect. assertTrue(cache.query(new SqlFieldsQuery("SELECT * from INTS")).getAll().isEmpty()); // We should see own updates. assertTrue(s....