expression.( )
举一反三
- Assume that the table "employee" has fields such as number, name, age, title, and nationality. The field that can be used as key is(). A: number B: name C: age D: title
- Can you name other diseases? Please write down the complete expression.
- A topic sentence can only appear at the beginning of a paragraph.
- 关于查询中列的别名, 以下（）语句是不正确的（选一项） A: Select name as '姓名' from table B: Select name as姓名 from table where id =1 C: Sleect name = 姓名 from table D: Select names姓名 from table
- 下面哪条语句可以查询姓“张”并且年龄等于20岁的用户，请问用哪条语句？ A: Select * From table Where name like "%张%" And intAge=20 B: Select * From table Where name like "张%" And intAge=20 C: Select * From table Where name like "张%" And intAge="20" D: Select * From table Where name="张" And intAge=20
内容
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Which statement is true regarding synonyms?（） A: Synonyms can be created only for a table B: Synonyms are used to reference only those tables that are owned by another user C: A public synonym and a private synonym can exist with the same name for the same table D: The DROP SYNONYM statement removes the synonym, and the table on which the synonym has been created becomes invalid
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A topic sentence can only appear at the beginning of a paragraph. A: 正确 B: 错误
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Fill in the blanks with the expressions given below. Change the form where necessary. Each expression can be used only once.4.The ditches (沟) were 4)____mud and garbage again after the pouring rain.
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The following can be used as a field ( ). A: user’s name B: user’s telephone C: product name D: product supplier
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在Oracle中,表EMP包含以下列:[br][/br]……[br][/br]NAME VARCHAR2(20)[br][/br]ADDR VARCHAR2(60)[br][/br]……[br][/br]要以NAME’s address is ADDR格式返回数据,以下SQL语句正确的是( A: SELECT NAME || ’’’s address is ‘ || ADDR FROM EMP; B: SELECT NAME + ’’’s address is ‘ + ADDR FROM EMP; C: SELECT NAME + ’\’s address is ‘ + ADDR FROM EMP; D: SELECT NAME || ’\’s address is ‘ || ADDR FROM EMP;