Altering data set attributes

The ALTER command modifies the attributes of defined data sets and catalogs.

The syntax of the ALTER command follows.

This table shows the syntax of the ALTER command.

Command	Parameters
ALTER	`entryname`
	[ACCOUNT(`account–info`)]
	[ADDVOLUMES(`volser`[ `volser`...])]
	[BUFFERSPACE(`size`)]
	[BUFND(`number`)]
	[BUFNI(`number`)]
	[BWO(TYPECICS\|TYPEIMS\|NO)]
	[CCSID(`value`)]
	[CODE(`code`)]
	[ECSHARING\|NOECSHARING]
	[EMPTY\|NOEMPTY]
	[ERASE\|NOERASE]
	[EXCEPTIONEXIT(`entrypoint`)]
	[FILE(`ddname`)]
	[FILEDATA(TEXT\|BINARY)]
	[FREESPACE(`CI-percent`[ `CA-percent`])]
	[FRLOG(NONE[ REDO])]
	[INHIBIT\|UNINHIBIT]
	[KEYS(`length` `offset`)]
	[LIMIT(`limit`)]
	[LOCK\|UNLOCK]
	[LOG(NONE\|UNDO\|ALL)]
	[LOGSTREAMID(`logstream`)]
	[MANAGEMENTCLASS(`class`)]
	[NEWNAME(`newname`)]
	[NULLIFY(
	[AUTHORIZATION(MODULE\|STRING)]
	[BWO]
	[CODE]
	[EXCEPTIONEXIT]
	[LOG]
	[LOGSTREAMID]
	[OWNER]
	[RETENTION]
	[OWNER(`ownerid`)]
	[RECORDSIZE(`average` `maximum`)]
	[REMOVEVOLUMES(`volser`[ `volser`...])]
	[REUSE\|NOREUSE]
	[ROLLIN]
	[SCRATCH\|NOSCRATCH]
	[SHAREOPTIONS(`crossregion`[ `crosssystem`])]
	[STORAGECLASS(`class`)]
	[STRNO(`number`)]
	[TO(`date`)\|FOR(`days`)]
	[TYPE(LINEAR)]
	[UNIQUEKEY\|NONUNIQUEKEY]
	[UPDATE\|NOUPDATE]
	[UPGRADE\|NOUPGRADE]
	[WRITECHECK\|NOWRITECHECK]
	[CATALOG(`catname`)]