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问题:

[单选] The accounting manager wants you to create a form that when queried will display a calculated total of year-to-date actual expenditures for the fund code entered. The value needed to generate this summary data are stored in multiple tables. How would you define the data source for this data block without having the DBA create a database object? ()

A . 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 . 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 'Table', and enter the SELECT statement in the Query Data Source Name property. 
E . Choose Tools -> Data Block Wizard, select Stored Procedure as the data source type, and base the block on the columns the tables. 
F . 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.

在香港,承办遗产的手续有哪些? Which three of the following are consirered Fixed Asset Deprecation Rule Components ?()  International Deprecation Methods。  Header。  Annual Rules。  Rule Conventions。  Predefined Deprecation Method。 男性,36岁,体重50kg,不慎被火焰烧伤,急诊入院。查体:面部、颈部及双上肢烧伤,腹部有3个手掌面积烧伤,创面可见小水疱、其疱壁较厚,去除疱壁后,基底部呈红白相间,疼痛迟钝。该患者烧伤面积是() 30%。 25%。 35%。 27%。 33%。 You notice a performance change in your production Oracle 12c database. You want to know which change caused this performance difference. Which method or feature should you use?() Compare Period ADDM report。 AWR Compare Period report。 Active Session History (ASH) report。 Taking a new snapshot and comparing it with a preserved snapshot。 An index called ORD_CUSTNAME_IX has been created on the CUSTNAME column in the ORDERS table using the following command:   SQL>CREATE INDEX ord_custname_ix ON orders(custname);   The ORDERS table is frequently queried using the CUSTNAME column in the WHERE clause. You want to check the impact on the performance of the queries if the index is not available. You do not want the index to be dropped or rebuilt to perform this test.  Which is the most efficient method of performing this task?()  disabling the index。  making the index invisible。  making the index unusable。  using the MONITORING USAGE clause for the index。 The accounting manager wants you to create a form that when queried will display a calculated total of year-to-date actual expenditures for the fund code entered. The value needed to generate this summary data are stored in multiple tables. How would you define the data source for this data block without having the DBA create a database object? ()
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