單項(xiàng)選擇題

A data manipulation language statement （）.

A. completes a transaction on a table
B. modifies the structure and data in a table
C. modifies the data but not the structure of a table
D. modifies the structure but not the data of a table

你可能感興趣的試題

單項(xiàng)選擇題

What does the FORCE option for creating a view do? （）

A. creates a view with constraints
B. creates a view even if the underlying parent table has constraints
C. creates a view in another schema even if you don't have privileges
D. creates a view regardless of whether or not the base tables exist

單項(xiàng)選擇題

Which are iSQL*Plus commands? （）

A. INSERT
B. UPDATE
C. SELECT
D. DESCRIBE
E. DELETE
F. RENAME