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______is a query language for manipulating data in a relmional database.
A.Assemble
B.SQL
C.C++
D.Fortran
B.SQL
C.C++
D.Fortran
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参考解析
解析：SQL是一种在关系数据库中获取数据的查询语言。
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C.C++
D.Fortran
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A. management
B. storage
C. analysis
D. communication
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关系数据库标准语言SQL是哪一项的缩写形式？（）A、Structured Query LanguageB、Standard Query LanguageC、Selected Query LanguageD、Seeking Query Language
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You are required to flashback your database. You want to find the amount of flashback data generated since the database was opened. Which task will you perform to obtain the required information？（）A、 Query the V$FLASHBACK_DATABASE_LOG view.B、 Query the V$FLASHBACK_DATABASE_STAT view.C、 Check the value of the DB_FLASHBACK_RETENTION_TARGET initialization parameter.D、 Query the V$RECOVERY_FILE_DEST view.
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单选题You are working as a DBA on the decision support system. There is a business requirement to track and store all transactions for at least three years for a few tables in the database. Automatic undo management is enabled in the database. Which configuration should you use to accomplish this task？（）A
Enable Flashback Data Archive for the tables.B
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Choose Tools - Data Block Wizard, select View as the data source type, and base the block on the columns from the bales. B
Choose Tools - Data Block Wizard, select Table as the data source type, and base the block on the columns from the tables. C
Select the Data Blocks node in the Object Navigator and click the Create button. Choose to build the data block manually and alter the Query Data Source Columns and Query Data Source Arguments properties to enter the SELECT statement. D
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Select the Data Blocks node in the Object Navigator and click the Create button. Choose to build the data block manually. Alter the Query Data Source Type to 'FROM' clause query', and enter the SELECT statement in the Query Data Source Name property.
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Use the database link.B
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To achieve the goal， a Linked Server connection should be configured to the application database.B
To achieve the goal， a query should be written， and an OPENQUERY command is utilized by the query.C
To achieve the goal， a Remote Server connection to the application database should be configured.D
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Add an XML index to the table that contains the product data.B
Add the XSINIL argument to the ELEMENTS directive in the query.C
Add a HAVING clause to the query.D
Add the replace value of clause to the query.
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单选题You have a large amount of historical data in an operating system file. Some analysts in your organization need to query this data. The file is too large to load into your current database. Which is the most effective method to accomplish the task？（）A
Upgrade the hardware/memory to accommodate the data.B
Load the data into your database by using the PARALLEL clause.C
Give analysts DBA privilege， so that they can query DBA_EXTERNAL_TABLES.D
Use an external table so you can have the metadata available in your database， but leave the data in the operating system files.
考题
单选题You are creating the SAL_INFO data block on the EMP_QUERY form. The SALARY field should only be populated if the logged-on user is a manager. Since this query could potentially return a large amount of records, you have created a stored procedure which uses a ref cursor on which to base the data block. How would you create the data block?（）A
Click the Data Blocks node in the Object Navigator and click the create button. Choose to build the data block manually. Enter the procedure name in the Query Data Source Columns property and the procedure code in the Query Data Source Arguments property. B
Choose Tools - Data Block Wizard, select Table as the data source type, and base the data block on the columns included in the procedure. C
Select the Data Blocks node in the Object Navigator and click the Create button. Choose to build the data block manually, alter the Query Data Source Type property to 'Ref cursor', and enter the name of the procedure in the Query Data Source Name property. D
Select the Data Blocks node in the Object Navigator and click the Create button. Alter the Query Data Source Name, Query Data Source Columns, and Query Data Source Arguments properties to create a stored procedure that uses a ref cursor. E
Launch the Data Block Wizard, select Stored Procedures as the data source type, and base the block on the procedure.
考题
单选题You are required to flashback your database. You want to find the amount of flashback data generated since the database was opened. Which task will you perform to obtain the required information？（）A
Query the V$FLASHBACK_DATABASE_LOG view.B
Query the V$FLASHBACK_DATABASE_STAT view.C
Check the value of the DB_FLASHBACK_RETENTION_TARGET initialization parameter.D
Query the V$RECOVERY_FILE_DEST view.
考题
填空题SQL是Structured Query Language（）的缩写。
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