org.h2.command.ddl

类 AlterTableAlterColumn

java.lang.Object

org.h2.command.Prepared

org.h2.command.ddl.DefineCommand

org.h2.command.ddl.SchemaCommand

org.h2.command.ddl.AlterTableAlterColumn

public class AlterTableAlterColumn
extends SchemaCommand

This class represents the statements ALTER TABLE ADD, ALTER TABLE ADD IF NOT EXISTS, ALTER TABLE ALTER COLUMN, ALTER TABLE ALTER COLUMN RESTART, ALTER TABLE ALTER COLUMN SELECTIVITY, ALTER TABLE ALTER COLUMN SET DEFAULT, ALTER TABLE ALTER COLUMN SET NOT NULL, ALTER TABLE ALTER COLUMN SET NULL, ALTER TABLE DROP COLUMN

字段概要

从类继承的字段 org.h2.command.ddl.DefineCommand

transactional

从类继承的字段 org.h2.command.Prepared

create, parameters, prepareAlways, session, sqlStatement

构造器概要

构造器

构造器和说明
AlterTableAlterColumn(Session session, Schema schema)

方法概要

限定符和类型	方法和说明
int	getType() Get the command type as defined in CommandInterface
void	setAddAfter(String after)
void	setAddBefore(String before)
void	setColumnsToRemove(ArrayList<Column> columnsToRemove)
void	setDefaultExpression(Expression defaultExpression)
void	setIfNotExists(boolean ifNotExists)
void	setIfTableExists(boolean b)
void	setNewColumn(Column newColumn)
void	setNewColumns(ArrayList<Column> columnsToAdd)
void	setOldColumn(Column oldColumn)
void	setSelectivity(Expression selectivity)
void	setTableName(String tableName)
void	setType(int type)
int	update() Execute the statement.

从类继承的方法 org.h2.command.ddl.SchemaCommand

getSchema

从类继承的方法 org.h2.command.ddl.DefineCommand

isReadOnly, isTransactional, queryMeta, setTransactional

从类继承的方法 org.h2.command.Prepared

checkCanceled, checkParameters, getCurrentObjectId, getCurrentRowNumber, getObjectId, getParameters, getPlanSQL, getSQL, getSQL, getSQL, isCacheable, isQuery, needRecompile, prepare, query, setCommand, setCurrentRowNumber, setObjectId, setParameterList, setPrepareAlways, setRow, setSession, setSQL, toString

从类继承的方法 java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

构造器详细资料

AlterTableAlterColumn

public AlterTableAlterColumn(Session session,
                             Schema schema)

方法详细资料

setIfTableExists

public void setIfTableExists(boolean b)

setTableName

public void setTableName(String tableName)

setOldColumn

public void setOldColumn(Column oldColumn)

setAddBefore

public void setAddBefore(String before)

setAddAfter

public void setAddAfter(String after)

update

public int update()

从类复制的说明: Prepared

Execute the statement.

覆盖:

update 在类中 Prepared

返回:

the update count

setType

public void setType(int type)

setSelectivity

public void setSelectivity(Expression selectivity)

setDefaultExpression

public void setDefaultExpression(Expression defaultExpression)

setNewColumn

public void setNewColumn(Column newColumn)

getType

public int getType()

从类复制的说明: Prepared

Get the command type as defined in CommandInterface

指定者:

getType 在类中 Prepared

返回:

the statement type

setIfNotExists

public void setIfNotExists(boolean ifNotExists)

setNewColumns

public void setNewColumns(ArrayList<Column> columnsToAdd)

setColumnsToRemove

public void setColumnsToRemove(ArrayList<Column> columnsToRemove)