safeDown() public method This method contains the logic

update() public method Creates and executes an UPDATE

batchInsert() public method Creates and executes an batch

insert() public method Creates and executes an INSERT

addPrimaryKey() public method Builds and executes a SQL

dropPrimaryKey() public method Builds and executes a SQL

renameColumn() public method Builds and executes a SQL

addCommentOnColumn() public method (available since version 2.0.8)

$db public property The DB connection object or the application

renameTable() public method Builds and executes a SQL