Which statement is true regarding the INTERSECT operator?（）
A: It ignores NULL values
B: Reversing the order of the intersected tables alters the result
C: The names of columns in all SELECT statements must be identical
D: The number of columns and data types must be identical for all SELECT statements in the query
A: It ignores NULL values
B: Reversing the order of the intersected tables alters the result
C: The names of columns in all SELECT statements must be identical
D: The number of columns and data types must be identical for all SELECT statements in the query
举一反三
- Which statement is true regarding the INTERSECT operator?（） A: It ignores NULL values B: Reversing the order of the intersected tables alters the result C: The names of columns in all SELECT statements must be identical D: The number of columns and data types must be identical for all SELECT statements in the query&e
- Select the following true statements regarding the concept of "understanding."
- All of the following statements are true except one. Which statement is false?
- Select the following true statements regarding the concept of artificial intelligence.
- For the same nuclide, which character must be identical? () A: Proton number B: Neutron number C: Electrons number D: Energy state