下面创建表空间的语句正确的是 A: CREATE TABLESPACE XXX TEMPFILE 'C:\XXX.DBF'SIZE 50m; B: CREATE UNDO TABLESPACE XXX TEMPFILE 'C:\XXX.DBF'SIZE 50m; C: CREATE TEMPORARY TABLESPACE XXX TEMPFILE 'C:\XXX.DBF'SIZE 50m; D: CREATE TEMPORARY TABLESPACT XXX DATAFILE 'C:\XXX.DBF'SIZE 50m;

下面哪个创建表空间的语句是正确的 A: CREATE TABLESPACE TBS DATAFILE 'tbs1.dbf' SIZE 50M; B: CREATE TABLESPACE TBS DATAFILE 'tbs1.dbf' SIZE 50M,'tbs2.dbf' SIZE 100M; C: CREATE UNDO TABLESPACE TBS DATAFILE 'tbs1.dbf' SIZE 50M; D: CREATE TEMPORARY TABLESPACE TBS TEMPFILE 'tbs1.dbf' SIZE 50M;