榜单
服务器优惠
AI论文
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事务管理
事务管理 语法格式 使用场景 使用限制 示例 事务管理 存储过程本身就处于一个事务中，开始调用最外围存储过程时会自动开启一个事务，在调用结束时自动提交或者发生异常时回滚。除了系统自动的事务控制外，也可以使用COMMIT/ROLLBACK来控制存储过程中的事务。在存储过程中调用COMMIT/ROLLBACK命令，将提交/回滚当前事务并自动开启一个... -
事务管理
事务管理 语法格式 使用场景 使用限制 示例 事务管理 存储过程本身就处于一个事务中，开始调用最外围存储过程时会自动开启一个事务，在调用结束时自动提交或者发生异常时回滚。除了系统自动的事务控制外，也可以使用COMMIT/ROLLBACK来控制存储过程中的事务。在存储过程中调用COMMIT/ROLLBACK命令，将提交/回滚当前事务并自动开启一个... -
Justify Self
Justify Self Quick reference Basic usage Auto Start Center End Stretch Applying conditionally Hover, focus, and other states Breakpoints and media queries Flexbox & Gri... -
Justify Self
Justify Self Quick reference Basic usage Auto Start Center End Stretch Applying conditionally Hover, focus, and other states Breakpoints and media queries Flexbox & Gri... -
Deployment modes
Deployment modes Traditional Decoupled Standalone How to configure rules How to configure Router How to configure Router + Service How to configure Router + Upstream How to c... -
break
break break You can use break to break out of a while loop: a = 2 while ( a += 1 ) < 20 if a == 10 break # goes to 'puts a' end end p... -
break
break break You can use break to break out of a while loop: a = 2 while ( a += 1 ) < 20 if a == 10 break # goes to 'puts a' end end p... -
Plugins
Add a command Hook into existing command Hanami has a convenient way to load commands from third party gems, so if you want to add a Hanami compatible gem, you only have to add... -
Metaprogramming Help
Metaprogramming Differences between Ruby and Crystal How to Translate Some Ruby Tricks to Crystal Overriding #new via extend Generating Methods via method_missing Macro How to... -
Metaprogramming Help
Metaprogramming Differences between Ruby and Crystal How to Translate Some Ruby Tricks to Crystal Overriding #new via extend Generating Methods via method_missing Macro How to...