下面的语句按顺序成功执行后
CREATE TABLE tab1 (c1 CHAR(1))
INSERT INTO tab1 VALUES (＇b＇)
CREATE VIEW view1 AS SELECT c1 FROM tab1 WHERE c1 =＇a＇
INSERT INTO view1 VALUES (＇a＇)
INSERT INTO tab1 VALUES (＇b＇)
执行SELECT c1 FROM tab1可以选择出多少条记录