1. 解释什么是自动提交(autocommit)及其影响 自动提交(Autocommit) 是一种数据库配置,它允许每个单独的SQL语句在执行后立即自动提交到数据库中,而不需要显式地执行 COMMIT 操作。在自动提交模式下,每当执行一个数据修改操作(如 INSERT、UPDATE 或DELETE)后,该操作会立即生效,并且不能被回滚(除非使用了事务控制)。
dhanabakeeswari15@gmail.com PostgreSQL version: 11.12 Operating system: Red Hat Enterprise Linux Server (7.8 version) Description: I am facing the "Cannot commit when autoCommit is enabled: " issue in the application level. I need to disable the auto-commit in the DB level for permanently. Pl...
Conversion failed when converting from a character string to uniqueidentifier. Conversion failed when converting the nvarchar value 'xxxxxx' to data type int. Conversion failed when converting the varchar value to data type int. Conversion failed when converting the varchar value '],[' to data type...
This component has also the ability to pool PreparedStatements. When enabled a statement pool will be created for each Connection and PreparedStatements created by one of the following methods will be pooled: public PreparedStatement prepareStatement(String sql) public PreparedStatement prepareStatement(St...
If you have enabled "removeAbandoned" then it is possible that a connection is reclaimed by the pool because it is considered to be abandoned. This mechanism is triggered when (getNumIdle() < 2) and (getNumActive() > getMaxActive() - 3) ...
defaultAutoCommit true The default auto-commit state of connections created by this pool. defaultReadOnly driver default The default read-only state of connections created by this pool. If not set then the setReadOnly method will not be called. (Some drivers don't support read only mode, ex...
AUTOCOMMIT=OFF;DB_CLOSE_ON_EXIT=FALSE;LOCK_MODE=3;LOCK_TIMEOUT=25000;WRITE_DELAY=0;AUTO_SERVER=FALSE nifi.registry.db.url.append= nifi.registry.db.username=nifireg nifi.registry.initial.admin.identity=*** nifi.registry.kerberos.krb5.file=/etc/krb5.conf nifi.registry.kerberos...
autocommit Autoincrement existing column sql server Automated Conversion from T-SQL to ANSI SQL? Automatic Truncate Long Strings while inserting data. Automatically import the CSV files from a Folder Automatically UpperCase ALL MS SQL Server Keywords AutoNumber in T-SQL Select Statement AVG ->Operand...
AUTOCOMMIT=OFF;DB_CLOSE_ON_EXIT=FALSE;LOCK_MODE=3;LOCK_TIMEOUT=25000;WRITE_DELAY=0;AUTO_SERVER=FALSE nifi.registry.db.url.append= nifi.registry.db.username=nifireg nifi.registry.initial.admin.identity=*** nifi.registry.kerberos.krb5.file=/etc/krb5.conf nifi.regist...
autocommit Autoincrement existing column sql server Automated Conversion from T-SQL to ANSI SQL? Automatic Truncate Long Strings while inserting data. Automatically import the CSV files from a Folder Automatically UpperCase ALL MS SQL Server Keywords AutoNumber in T-SQL Select Statement AVG ->Operand...