单选题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?（）AWhen view V1 is createdBEach time the REFRESH VIEW v1 statement is executedCEach time an SQL statement is executed against view V1DOnly the first time an SQL statement is executed against view V1
单选题
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
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