SQL是哪几个英文单词的缩写?A．Standard Query LanguageB．Structured Query LanguageC．Select QueryL anguageD．以上都不是

题目

SQL是哪几个英文单词的缩写?

A．Standard Query Language

B．Structured Query Language

C．Select QueryL anguage

D．以上都不是

相似考题

1.You have an SQL query that takes one minute to execute. You use the following code segment to execute theSQL query asynchronously.Dim ar As IAsyncResult = cmd.BeginExecuteReader()You need to execute a method named DoWork() that takes one second to run while the SQL query is executing.DoWork() must run as many times as possible while the SQL query is executing.Which code segment should you use?（）A.B.C.D.

2.Examine the data from the ORDERS and CUSTOMERS tables.Evaluate the SQL statement:What is the result when the query is executed?()A.B.C.D. The query fails because the subquery returns more than one row.E. The query fails because the outer query and the inner query are using different tables.

3.A new report process containing a complex query is written, with high impact on the database. You wantto collect basic statistics about query, such as the level of parallelism, total database time, and the number of I/O requests.For the database instance STATISTICS_LEVEL, the initialization parameter is set to TYPICAL and theCONTROL_MANAGEMENT_PACK_ACCESS parameter is set to DIAGNOSTIC+TUNING.What should you do to accomplish this task?（）A. Execute the query and view Active Session History (ASH) for information about the query.B. Enable SQL trace for the query.C. Create a database operation, execute the query, and use the DBMS_SQL_MONITOR. REPORT_SQL_MONITOR function to view the report.D. Use the DBMS_APPLICATION_INFO.SET_SESSION_LONGOPS procedure to monitor query execution and view the information from the V$SESSION_LONGOPS view.

4.SQL是Structured Query Language( 结构化查询语言 )的缩写。()

更多“SQL是哪几个英文单词的缩写?A.Standard Query LanguageB.Structured Query LanguageC.Select Que ”相关问题

  • 第1题：

    SQL是( )的简称。

    A．FoxPro

    B．Visual FoxPro

    C．Microsoft Office

    D．Structured Query Language


    正确答案：D

  • 第2题：

    The most common query language is______．

    A．C

    B．Java

    C．perl

    D．SQL


    正确答案：D
    解析：最常用的结构化查询语言是SQL。

  • 第3题：

    SQL是Structured Query Language（）的缩写。


    正确答案:结构化查询语言

  • 第4题：

    关于mysql_db_query与mysql_query说法正确的是：（）

    • A、mysql_db_query与mysql_query在执行sql语句后的返回值是一样的，成功返回资源号，失败返回FALSE
    • B、不能用mysql_query函数临时在另一个数据库上执行sql语句，而mysql_db_query可以
    • C、mysql_db_query不会切换回先前连接到的数据库
    • D、mysql_query在功能上等于mysql_select_db（）+mysql_db_query（）

    正确答案:C

  • 第5题：

    对原生SQL查询的控制是通过（）接口进行的。

    • A、SQLQuery
    • B、Session
    • C、List
    • D、Query

    正确答案:A

  • 第6题：

    SQL是（）英文单词的缩写。

    • A、Structured Query Language
    • B、Standard Query Language
    • C、Select Query Language
    • D、以上都不是

    正确答案:A

  • 第7题：

    You define a multiple-row subquery in the WHERE clause of an SQL query with a comparison operator "=".What happens when the main query is executed?（）

    • A、The main query executes with the first value returned by the subquery.
    • B、The main query executes with the last value returned by the subquery.
    • C、The main query executes with all the values returned by the subquery.
    • D、The main query fails because the multiple-row subquery cannot be used with the comparison operator.
    • E、You cannot define a multiple-row subquery in the WHERE clause of a SQL query.

    正确答案:D

  • 第8题：

    单选题
    SQL是（）英文单词的缩写。
    A

    Structured Query Language

    B

    Standard Query Language

    C

    Select Query Language

    D

    以上都不是


    正确答案： A
    解析： 暂无解析

  • 第9题：

    单选题
    Which of the following statements best describes Flashback Versions Query？（）
    A

     Flashback Versions Query is used to make changes to multiple versions of data that existed between two points in time.

    B

     Flashback Versions Query is used to view all version changes on rows that existed between the time  the query was executed and a point in time in the past.

    C

     Flashback Versions Query is used to view version changes and the SQL to undo those changes on rows that existed between two points in time.

    D

     Flashback Versions Query is used to view all version changes on rows that existed between two  points in time.


    正确答案： A
    解析： 暂无解析

  • 第10题：

    单选题
    SQL是那几个英文单词的缩写（）
    A

    Standard Query Language

    B

    Structured Query Language

    C

    Select Query Language

    D

    以上都不是


    正确答案： C
    解析： 暂无解析

  • 第11题：

    单选题
    You define a multiple-row subquery in the WHERE clause of an SQL query with a comparison operator "=".What happens when the main query is executed?（）
    A

    The main query executes with the first value returned by the subquery.

    B

    The main query executes with the last value returned by the subquery.

    C

    The main query executes with all the values returned by the subquery.

    D

    The main query fails because the multiple-row subquery cannot be used with the comparison operator.

    E

    You cannot define a multiple-row subquery in the WHERE clause of a SQL query.


    正确答案： D
    解析： 暂无解析

  • 第12题：

    填空题
    SQL是Structured Query Language（）的缩写。

    正确答案： 结构化查询语言
    解析： 暂无解析

  • 第13题：

    SQL是 ______的缩写。

    A．Standard Query Language

    B．Structured Query Language

    C．Select Query Language

    D．以上都不是


    正确答案：B
    解析：SQL是结构化查询语言Structured Query Language的缩写。

  • 第14题：

    在设计阶段，如果在Query对象的SQL语句中设置了参数，则必须在Query的Params属性中为参数设置数据类型。


    正确答案:正确

  • 第15题：

    SQL是哪几个英语单词的缩写（）

    • A、Standard Query Language
    • B、Structured Query Language
    • C、Select Query Language
    • D、其他三项都不是

    正确答案:B

  • 第16题：

    Which of the following statements best describes Flashback Versions Query？（）  

    • A、 Flashback Versions Query is used to make changes to multiple versions of data that existed between two points in time.
    • B、 Flashback Versions Query is used to view all version changes on rows that existed between the time  the query was executed and a point in time in the past.
    • C、 Flashback Versions Query is used to view version changes and the SQL to undo those changes on rows that existed between two points in time.
    • D、 Flashback Versions Query is used to view all version changes on rows that existed between two  points in time.

    正确答案:D

  • 第17题：

    SQL是那几个英文单词的缩写（）

    • A、Standard Query Language
    • B、Structured Query Language
    • C、Select Query Language
    • D、以上都不是

    正确答案:B

  • 第18题：

    关系数据库标准语言SQL是哪一项的缩写形式？（）

    • A、Structured Query Language
    • B、Standard Query Language
    • C、Selected Query Language
    • D、Seeking Query Language

    正确答案:A

  • 第19题：

    SQL是Structured Query Language（结构化查询语言）的缩写，包括哪3个部分（）

    • A、数据备份语言
    • B、数据操作语言
    • C、数据定义语言
    • D、数据控制语言

    正确答案:B,C,D

  • 第20题：

    单选题
    You received complaints about the degradation of SQL query performance. You identified top SQL queries that consume time. What would be your next step to find out recommendations about statistics collection and restructuring of the SQL statement to improve query performance？（）
    A

    run Segment Advisor

    B

    run SQL Tuning Advisor on top SQL statements

    C

    run the Automatic Workload Repository （AWR） report

    D

    run the Automatic Database Diagnostic Monitor （ADDM）on top SQL statements


    正确答案： D
    解析： 暂无解析

  • 第21题：

    单选题
    A new report process containing a complex query is written, with high impact on the database. You wantto collect basic statistics about query, such as the level of parallelism, total database time, and the number of I/O requests. For the database instance STATISTICS_LEVEL, the initialization parameter is set to TYPICAL and theCONTROL_MANAGEMENT_PACK_ACCESS parameter is set to DIAGNOSTIC+TUNING. What should you do to accomplish this task?（）
    A

    Execute the query and view Active Session History (ASH) for information about the query.

    B

    Enable SQL trace for the query.

    C

    Create a database operation, execute the query, and use the DBMS_SQL_MONITOR. REPORT_SQL_MONITOR function to view the report.

    D

    Use the DBMS_APPLICATION_INFO.SET_SESSION_LONGOPS procedure to monitor query execution and view the information from the V$SESSION_LONGOPS view.


    正确答案： B
    解析： 暂无解析

  • 第22题：

    单选题
    SQL是哪几个英语单词的缩写（）
    A

    Standard Query Language

    B

    Structured Query Language

    C

    Select Query Language

    D

    其他三项都不是


    正确答案： B
    解析： 暂无解析

  • 第23题：

    单选题
    EXHIBIT, Emp Table Exhibit A Exhibit B Examine the data from the EMP table. Evaluate this SQL statement: SELECT * FROM emp WHERE emp _ id = 3); WHERE commission = (SELECT commission FROM emp What is the result when the query is executed?（）
    A

    Exhibit A

    B

    Exhibit B 

    C

    The query returns no rows 

    D

    The query fails because the outer query is retrieving more than one column

    E

    The query fails because both the inner and outer queries are retrieving data from the same table.


    正确答案： B
    解析： 暂无解析

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