多做题,通过考试没问题!

IBM认证考试

睦霖题库>其他计算机考试>IBM认证考试

A view is created with the following statement:CREATE VIEW v1 AS SELECT col1, col2, col3 FROM t1 WHERE col4 > 1000 ; When will DB2 access the data from table T1 for view V1?()

  • A、When view V1 is created
  • B、Each time the REFRESH VIEW v1 statement is executed
  • C、Each time an SQL statement is executed against view V1
  • D、Only the first time an SQL statement is executed against view V1
正确答案:C
答案解析:
进入题库查看解析

微信扫一扫手机做题