假设表“test1”中有10条数据行,可获得最前面两条数据行的语句为( )。
A、SELECT 2 * FROM test1
B、SELECT TOP 2 * FROM test1
C、SELECT PERCENT 2 * FROM test1
D、SELECT PERCENT 20 * FROM test1
发布时间:2025-06-05 02:52:29
A、SELECT 2 * FROM test1
B、SELECT TOP 2 * FROM test1
C、SELECT PERCENT 2 * FROM test1
D、SELECT PERCENT 20 * FROM test1