⒈存储过程 一组预先编译好的sql语句的集合,理解成批处理语句。 好处: ①提高代码的重用性 ②简化操作 ③减少了编译次数并且减少了和数据库服务器的连接次数,提高了效率 1.创建语法 1 create procedure 存储过程名称(参数列表) 2 begin 3 存储过程体(一组合法的sql语句) 4 end *参数列 mysql中 diff函数 ...
typeA === typeB || types.indexOf(typeA)>-1 && types.indexOf(typeB)>-1 ) } 判断的依据主要是 三点,key,tag,是否存在 data 这里判断的节点是只是相对于 节点本身,并不包括 children 在内 也就是说,就算data不一样,children 不一样,两个节点还是可能一样 比如下面这两个 有一种特殊情况,就是 ...
Whichever merge option you select, DiffDog always creates a SQL change script for the target database for you to review. You can save the SQL change script to a file, send the script to a SQL Editor window in DatabaseSpy, execute the SQL change script directly from DiffDog, or cancel yo...
ENUM类型 ENUM类型也叫作枚举类型，ENUM类型的取值范围需要在定义字段时进行指定。设置字段值时，ENUM类型...
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Creates a new instance of DiffDiskPlacement value. Method Details fromString public static DiffDiskPlacement fromString(String name) Creates or finds a DiffDiskPlacement from its string representation. Parameters: name - a name to look for. Returns: the corresponding DiffDiskPlacement. values publ...
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MySQL Workbenchis the official GUI for MySQL development from Oracle. It includes schema comparison and synchronization utilities. It enables you to compare and synchronize schema between models, databases and SQL files. These three types can be the destination, source, or both. The following figure...
Compares the PostgreSQL schema between two databases and generates SQL statements that can be run manually against the second database to make their schemas match. - joncrlsn/pgdiff
sql.types import DoubleType from gresearch.spark.diff import DiffOptions, DiffMode, DiffComparators options = DiffOptions() \ .with_diff_column("d") \ .with_left_column_prefix("l") \ .with_right_column_prefix("r") \ .with_insert_diff_value("i") \ .with_change_diff_value("c") ...