delete from student where s_id >5 该代码执行的是哪项操作？

关于DELETE和TRUNCATE TABLE的说法，正确的是( )

有SQL语句： SELECT * FROM 教师 WHERE NOT (工资＞3000 OR 工资＜2000) 与如上语句等价的SQL语句是

有SQL语句：SELECT * FROM教师WHERE NOT（工资>3000 OR 工资<2000）与如上语句等价的SQL语句是

一个Oracle Server包含一个Oracle Instance和一个Oracle Database。

In a test database, you issue the SELECT … INTO OUTFILE statement to create a file with your t1 table data. You then TRUNCATE this table to empty it.（） Mysql＞ SELECT * INTO OUTFILE '/tmp/t1.sql' from t1; mysql＞ TRUNCATE t1;

杠铃与哑铃练习法、体操练习法可用来发展力量。

DELETE FROM S WHERE 年龄>60语句的功能是______。

DELETE FROM S WHERE年龄＞60语句的功能是 ______。

DELETE FROM S WHERE年龄＞60语句的功能是______。

DELETE FROM S WHERE年龄＞60语句的功能是

Damage to cargo caused by fumes or vapors from liquids，gases，or solids is known as（）.