表达式“AGE BETWEEN 18 AND 24”等价于 A: AGE>18 AND AGE<24 B: AGE>=18 AND AGE<24 C: AGE>18 AND AGE<=24 D: AGE>=18 AND AGE<=24
表达式“AGE BETWEEN 18 AND 24”等价于 A: AGE>18 AND AGE<24 B: AGE>=18 AND AGE<24 C: AGE>18 AND AGE<=24 D: AGE>=18 AND AGE<=24
设有关系表S(NO,NAME,AGE),其中AGE为年龄字段,则表达式AGE NOT BETWEEN 18 AND 24等价于() A: AGE<=18 OR AGE>=24 B: AGE<=18 0R AGE>24 C: AGE<18 OR AGE>=24 D: AGE<18 0R AGE>24
设有关系表S(NO,NAME,AGE),其中AGE为年龄字段,则表达式AGE NOT BETWEEN 18 AND 24等价于() A: AGE<=18 OR AGE>=24 B: AGE<=18 0R AGE>24 C: AGE<18 OR AGE>=24 D: AGE<18 0R AGE>24
表达式“AGEBETWEEN18AND24”等价于()。 A: AGE>18ANDG<24 B: AGE>=18ANDG<24 C: AGE>18ANDG<=24 D: AGE>=18ANDAGE<=24
表达式“AGEBETWEEN18AND24”等价于()。 A: AGE>18ANDG<24 B: AGE>=18ANDG<24 C: AGE>18ANDG<=24 D: AGE>=18ANDAGE<=24
设有关系表S(NO,NAME,AGE),其中AGE为年龄字段,则表达式 A: E NOT BETWEEN 18 AND 24 等价于: B: AGE<=18 OR AGE>=24 C: AGE<=18 OR AGE>24 D: AGE<18 OR AGE>=24 E: AGE<18 OR AGE>24
设有关系表S(NO,NAME,AGE),其中AGE为年龄字段,则表达式 A: E NOT BETWEEN 18 AND 24 等价于: B: AGE<=18 OR AGE>=24 C: AGE<=18 OR AGE>24 D: AGE<18 OR AGE>=24 E: AGE<18 OR AGE>24
表达式“AGEBETWEEN18AND24”等价于()A.AGE>18ANDAGE<24B.AGE>=18ANDAGE<24C.AGE>18ANDAGE<=24D.AGE>=18ANDAGE<=24
表达式“AGEBETWEEN18AND24”等价于()A.AGE>18ANDAGE<24B.AGE>=18ANDAGE<24C.AGE>18ANDAGE<=24D.AGE>=18ANDAGE<=24
The fetal lungs are capable of breathing after ( ). A: 20 weeks' gestational age B: 24 weeks' gestational age C: 28 weeks' gestational age D: 32 weeks' gestational age E: 16 weeks' gestational age
The fetal lungs are capable of breathing after ( ). A: 20 weeks' gestational age B: 24 weeks' gestational age C: 28 weeks' gestational age D: 32 weeks' gestational age E: 16 weeks' gestational age
表达式“AGE BETWEEN 18 AND 24”等价于( )。 A: AGE>18 AND G<24 B: AGE>=18 AND G<24 C: AGE>18 AND G<=24 D: AGE>=18 AND AGE<=24
表达式“AGE BETWEEN 18 AND 24”等价于( )。 A: AGE>18 AND G<24 B: AGE>=18 AND G<24 C: AGE>18 AND G<=24 D: AGE>=18 AND AGE<=24
下面哪一个表达式能正确表示逻辑关系:"age≥18 或age≤60"? A: age>=18 || age B: age>=18 or age C: age>=18 | age D: age>=18 && age
下面哪一个表达式能正确表示逻辑关系:"age≥18 或age≤60"? A: age>=18 || age B: age>=18 or age C: age>=18 | age D: age>=18 && age
与WHERE AGE BETWEEN 18 AND 23完全等价的是() A: WHERE AGE>18AND AGE<23 B: WHERE AGE>=18AND AGE<23 C: WHERE AGE>18AND AGE<=23 D: WHERE AGE>=18AND AGE<=23
与WHERE AGE BETWEEN 18 AND 23完全等价的是() A: WHERE AGE>18AND AGE<23 B: WHERE AGE>=18AND AGE<23 C: WHERE AGE>18AND AGE<=23 D: WHERE AGE>=18AND AGE<=23
同WHERE Age BETWEEN 15 AND 20完全等价的是( )。 A: WHERE Age>;15 AND Age<;20 B: WHERE Age>;=15 AND Age<;20 C: WHERE Age>;15 AND Age<;=20 D: WHERE Age>;=15 AND Age<;=20
同WHERE Age BETWEEN 15 AND 20完全等价的是( )。 A: WHERE Age>;15 AND Age<;20 B: WHERE Age>;=15 AND Age<;20 C: WHERE Age>;15 AND Age<;=20 D: WHERE Age>;=15 AND Age<;=20