1. <tt id="5hhch"><source id="5hhch"></source></tt>
    1. <xmp id="5hhch"></xmp>

  2. <xmp id="5hhch"><rt id="5hhch"></rt></xmp>

    <rp id="5hhch"></rp>
        <dfn id="5hhch"></dfn>

      1. NIITsql選擇題考試題庫

        時間:2022-05-13 02:26:51 NIIT認證 我要投稿
        • 相關推薦

        NIITsql選擇題考試題庫

          NIIT的工作領域包括系統合成,商業對策,工程,制造,財務,網絡工程,通訊,信息技術咨詢,應用軟件開發,多媒體軟件及職業信息技術培訓和企業信息技術培訓。以下是關于NIITsql選擇題考試題庫,希望大家認真閱讀!

        NIITsql選擇題考試題庫

          選擇題:(每空2分共20分)

          1、在MS SQL Server中,用來顯示數據庫信息的系統存儲過程是( )

          A sp_ dbhelp

          B sp_ db

          C sp_ help

          D sp_ helpdb

          2、SQL語言中,刪除一個表的命令是( )

          A DELETE

          B DROP

          C CLEAR

          D REMORE

          3、關系數據庫中,主鍵是(__)

          A、為標識表中唯一的實體

          B、創建唯一的索引,允許空值

          C、只允許以表中第一字段建立

          D、允許有多個主鍵的

          4、在Transact-SQL語法中,SELECT語句的完整語法較復雜,但至少包括的部分(1___),使用關鍵字(2___)可以把重復行屏蔽,將多個查詢結果返回一個結果集合的運算符是(3___),如果在SELECT語句中使用聚合函數時,一定在后面使用(4___)。

         、 A、SELECT,INTO B、SELECT,FROM

          C、SELECT,GROUP D、僅SELECT

          ⑵ A、DISTINCT B、UNION

          C、ALL C、TOP

         、 A、JOIN B、UNION

          C、INTO C、LIKE

          ⑷ A、GROUP BY B、COMPUTE BY

          C、HAVING D、COMPUTE

          5、語句DBCC SHRINKDATABASE (Sample, 25)中的25表示的意思是

          A、25M

          B、剩余占整個空間的25%

          C、已用空間占整個空間的25%

          D、以上都不對

          6、你是一個保險公司的數據庫開發人員,公司的保單信息存儲在SQL Server 2000數據庫中,你使用以下腳本建立了一個名為Policy的表:

          CREATE TABLE Policy

          (

          PolicyNumber int NOT NULL DEFAULT (0),

          InsuredLastName char (30) NOT NULL,

          InsuredFirstName char (20) NOT NULL,

          InsuredBirthDate datetime NOT NULL,

          PolicyDate datetime NOT NULL,

          FaceAmount money NOT NULL,

          CONSTRAINT PK_Policy PRIMARY KEY (PolicyNumber)

          )

          每次公司銷售出一份保單,Policy表中就增加一條記錄,并賦予其一個新的保單號,你將怎么做?

          a.建立一個INSTEAD OF INSERT觸發器來產生一個新的保單號,并將這個保單號插入數據表中。

          b.建立一個INSTEAD OF UPDATE觸發器來產生一個新的保單號,并將這個保單號插入數據表中。

          c.建立一個AFTER UPDATE觸發器來產生一個新的保單號,并將這個保單號插入數據表中。

          d.用AFTER UPDATE觸發器替代DEFAULT約束條件產生一個新的保單號,并將這個保單號插入數據表中。

          7、在SQL語言中,如果要建立一個工資表包含職工號,姓名,職稱。工資等字段。若要保證工資字段的取值不低于800元,最合適的實現方法是:

          A。在創建工資表時為”工資“字段建立缺省

          B。在創建工資表時為”工資“字段建立檢查約束

          C。在工資表建立一個觸發器

          D。為工資表數據輸入編寫一個程序進行控制

          8、Select 語句中用來連接字符串的符號是______.

          A. “+” B. “&” C.“||” D.“|”

          9、你是一個出版公司的數據庫開發人員,對特定的書名的每天的銷售情況建立了如下的存儲過程:

          CREATE PROCEDURE get_sales_for_title

          title varchar(80), @ytd_sales int OUTPUT

          AS

          SELECT @ytd_sales = ytd_sales

          FROM titles

          WHERE title = @title

          IF @@ROWCOUNT = 0

          RETURN(-1)

          ELSE

          RETURN(0)

          另外建立了一個腳本執行這個存儲過程,如果執行成功,將返回對應于書名的每天的銷售情況的報表,如果執行失敗,將返回“No Sales Found”,怎樣建立這個腳本?

          A. DECLARE @retval int

          DECLARE @ytd int

          EXEC get_sales_for_title ‘Net Etiquette’, @ytd

          IF @retval < 0

          PRINT ‘No sales found’

          ELSE

          PRINT ‘Year to date sales: ’ + STR (@ytd)

          GO

          B. DECLARE @retval int

          DECLARE @ytd int

          EXEC get_sales_for_title ‘Net Etiquette’, @ytd OUTPUT

          IF @retval < 0

          PRINT ‘No sales found’

          ELSE

          PRINT ‘Year to date sales: ’ + STR (@ytd)

          GO

          C. DECLARE @retval int

          DECLARE @ytd int

          EXEC get_sales_for_title ‘Net Etiquette’,@retval OUTPUT

          IF @retval < 0

          PRINT ‘No sales found’

          ELSE

          PRINT ‘Year to date sales: ’ + STR (@ytd)

          GO

          D. DECLARE @retval int

          DECLARE @ytd int

          EXEC @retval = get_sales_for_title ‘Net Etiquette’, @ytd OUTPUT

          IF @retval < 0

          PRINT ‘No sales found’

          ELSE

          PRINT ‘Year to date sales: ’ + STR (@ytd)

          GO

          10、You are a database developer for a container manufacturing company. The containers produced by your company are a number of different sizes and shapes. The tables that store the container information are shown in the Size, Container, and Shape Tables exhibit:

          Size

          SizeID

          SizeName

          Height

          Container

          ContainerID

          ShapeID

          SizeID

          Shape

          ShapeID

          ShapeName

          Measurements

          A sample of the data stored in the tables is shown below:

          Size Table

          SizeID SizeName Height

          1 Small 40

          2 Medium 60

          3 Large 80

          4 Jumbo 100

          Shape Table

          ShapeID ShapeName Measurement

          1 Triangle 10

          2 Triangle 20

          3 Triangle 30

          4 Square 20

          5 Square 30

          6 Square 40

          7 Circle 15

          8 Circle 25

          9 Circle 35

          Periodically, the dimensions of the containers change. Frequently, the database users require the volume of a container. The volume of a container is calculated based on information in the shape and size tables.

          You need to hide the details of the calculation so that the volume can be easily accessed in a SELECT query with the rest of the container information. What should you do?

          A. Create a user-defined function that requires ContainerID as an argument and returns the volume of the container.

          B. Create a stored procedure that requires ContainerID as an argument and returns the volume of the container.

          C. Add a column named volume to the container table. Create a trigger that calculates and stores volume in this column when a new container is inserted into the table.

          D. Add a computed column to the container table that calculates the volume of the container.

        【NIITsql選擇題考試題庫】相關文章:

        2017年計算機二級考試題庫「選擇題」08-29

        最新電工考試題庫02-03

        cad中級考試題庫附答案04-27

        最新資料員考試題庫及答案08-30

        電子商務師考試題庫10-12

        2023執業中藥師考試題庫及答案02-06

        計算機基礎考試題庫及答案03-11

        2017證券從業資格考試模擬題庫08-26

        2017普通話考試測試題庫09-09

        托福口語題庫08-26

        国产高潮无套免费视频_久久九九兔免费精品6_99精品热6080YY久久_国产91久久久久久无码

        1. <tt id="5hhch"><source id="5hhch"></source></tt>
          1. <xmp id="5hhch"></xmp>

        2. <xmp id="5hhch"><rt id="5hhch"></rt></xmp>

          <rp id="5hhch"></rp>
              <dfn id="5hhch"></dfn>