单选题Which is an example of a dynamic SELECT statement? （）AA query whose object names change during its execution. BA query whose object names are not known until run time. CA query whose bind variables values change during execution. DA query whose bind variable values are not known until run time.
单选题
Which is an example of a dynamic SELECT statement? （）
A
A query whose object names change during its execution.
B
A query whose object names are not known until run time.
C
A query whose bind variables values change during execution.
D
A query whose bind variable values are not known until run time.
参考解析
解析：
暂无解析
相关考题：
The user Alice wants to grant all users query privileges on her DEPT table. Which SQL statement accomplishes this? () A. GRANT select ON dept TO ALL_ USER;B. GRANT select ON dept TO ALL;C. GRANT QUERY ON dept TO ALL_USERSD. GRANT select ON dept TO PUBLIC;
A general purpose MySQL instance is configured with the following options:—log-slow-queries—long-query-time=,0001—log-slow-admin-queries—general-log—log-bin—binlog-format=STATEMENT—innodb-flush-log-at-trx-commit=1Which three statements are true（）。A.The General Query Log records more data than the Binary LogB.The binary Log records more data than the General Query LogC.The Slow Query Log records more data than the General Query LogD.The General Query Log records more data than the Slow Query LogE.The Slow Query Log records more data than the Binary LogF.The Binary Log records more data than the Slow Query Log
在Visual FoxPro中，要运行查询文件query1.qpr，可以使用命令A．DO query1B．DO query1.qprC．DO QUERY query1D．RUN query1
Which three statements about dynamic filtering are true? () A. Dynamic filtering creates a query statement.B. Dynamic filtering has an option to save query.C. Dynamic filtering can select any log field to filter.D. Dynamic filtering permanently removes other log entries.E. Dynamic filtering redraws the log when you select a variable link.
Which object may be used during query optimization to improve the performance for a subset of SELECT queries?（）A、MQTB、TriggerC、Read Only CursorD、Stored Procedure
Which statement is true regarding the INTERSECT operator?（）A、It ignores NULL values B、Reversing the order of the intersected tables alters the result C、The names of columns in all SELECT statements must be identical D、The number of columns and data types must be identical for all SELECT statements in the query
You are creating the DEPT_SAL data block from the PAYHIST form. Users should be able to enter a valid department ID number, which will then display the employee salary information for that department. This data block could potentially retrieve a large number of records. Since users will probably only view a small number of these records, only 10 records should be fetched at one time. How would you create the data block?（）A、Select 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 block on the columns from the tables. C、Choose Tools - Data Block Wizard, select, View as the data source type, and base the block on the columns from the tables. 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 'FROM clause query', and enter the SELECT statement in the Query Data Source Name property. E、Select the Data Block node in the Object Navigator and click the Create button. Alter the Query Data Source Type, Query Data Source Name, Query Data Sources Columns, and Query Data Source Arguments properties to create a stored procedure that uses a red cursor.
Which three statements about dynamic filtering are true? （）A、Dynamic filtering creates a query statement.B、Dynamic filtering has an option to save query.C、Dynamic filtering can select any log field to filter.D、Dynamic filtering permanently removes other log entries.E、Dynamic filtering redraws the log when you select a variable link.
Which two statements are true regarding the ORDER BY clause? （）A、The sort is in ascending by order by default.B、The sort is in descending order by default.C、The ORDER BY clause must precede the WHERE clause.D、The ORDER BY clause is executed on the client side.E、The ORDER BY clause comes last in the SELECT statement.F、The ORDER BY clause is executed first in the query execution.
A general purpose MySQL instance is configured with the following options: —log-slow-queries —long-query-time=,0001 —log-slow-admin-queries —general-log —log-bin —binlog-format=STATEMENT —innodb-flush-log-at-trx-commit=1 Which three statements are true（）。A、The General Query Log records more data than the Binary LogB、The binary Log records more data than the General Query LogC、The Slow Query Log records more data than the General Query LogD、The General Query Log records more data than the Slow Query LogE、The Slow Query Log records more data than the Binary LogF、The Binary Log records more data than the Slow Query Log
The user Alice wants to grant all users query privileges on her DEPT table. Which SQL statement accomplishes this?（）A、GRANT select ON dept TO ALL_ USER;B、GRANT select ON dept TO ALL;C、GRANT QUERY ON dept TO ALL_USERSD、GRANT select ON dept TO PUBLIC;
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.
Which two statements are true regarding the ORDER BY clause? （）A、It is executed first in the query execution B、It must be the last clause in the SELECT statement C、It cannot be used in a SELECT statement containing a HAVING clauseD、You cannot specify a column name followed by an expression in this clause E、You can specify a combination of numeric positions and column names in this clause
Examine the parameters for your database instance: Which three statements are true about the process of automatic optimization by using cardinality feedback?（）A、The optimizer automatically changes a plan during subsequent execution of a SQL statement if there is a huge difference in optimizer estimates and execution statistics.B、The optimizer can re optimize a query only once using cardinality feedback.C、The optimizer enables monitoring for cardinality feedback after the first execution of a query.D、The optimizer does not monitor cardinality feedback if dynamic sampling and multicolumn statistics are enabled.E、After the optimizer identifies a query as a re-optimization candidate, statistics collected by thecollectors are submitted to the optimizer.
Which is an example of a dynamic SELECT statement? （）A、A query whose object names change during its execution. B、A query whose object names are not known until run time. C、A query whose bind variables values change during execution. D、A query whose bind variable values are not known until run time.
单选题When does Oracle9i flag an index as being used in the V$OBJECT_USAGE view？（）ADuring a query’s parse time only. BDuring a query’s execution time only. CDuring any kind of DML statement execution. DDuring the execution of an INSERT statement only.
单选题You created a tabular report for the sales department to display each customer and the sales person assign to the customer. The data is sorted by customer using the order by clause in this query. This is department manager asks you to alter the report so that data is sorted by sales person rather than by customer. What is the best way to make the needed change?（）ARecreate the query and default the layout. BAlter the query, default the layout and redo the boiler plates. CQuery and manually change the layout to save the boiler plate. DAlter the query and make no further change.
单选题The user Alice wants to grant all users query privileges on her DEPT table. Which SQL statement accomplishes this?（）AGRANT select ON dept TO ALL_ USER;BGRANT select ON dept TO ALL;CGRANT QUERY ON dept TO ALL_USERSDGRANT select ON dept TO PUBLIC;
单选题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? （）AChoose Tools - Data Block Wizard, select View as the data source type, and base the block on the columns from the bales. BChoose Tools - Data Block Wizard, select Table as the data source type, and base the block on the columns from the tables. CSelect 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. DSelect 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. EChoose Tools - Data Block Wizard, select Stored Procedure as the data source type, and base the block on the columns the tables. FSelect 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.
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?（）AClick 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. BChoose Tools - Data Block Wizard, select Table as the data source type, and base the data block on the columns included in the procedure. CSelect 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. DSelect 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. ELaunch the Data Block Wizard, select Stored Procedures as the data source type, and base the block on the procedure.
多选题Which three statements about dynamic filtering are true? （）ADynamic filtering creates a query statement.BDynamic filtering has an option to save query.CDynamic filtering can select any log field to filter.DDynamic filtering permanently removes other log entries.EDynamic filtering redraws the log when you select a variable link.
多选题Which two statements are true regarding the ORDER BY clause? （）AThe sort is in ascending by order by default.BThe sort is in descending order by default.CThe ORDER BY clause must precede the WHERE clause.DThe ORDER BY clause is executed on the client side.EThe ORDER BY clause comes last in the SELECT statement.FThe ORDER BY clause is executed first in the query execution.
单选题You are creating the DEPT_SAL data block from the PAYHIST form. Users should be able to enter a valid department ID number, which will then display the employee salary information for that department. This data block could potentially retrieve a large number of records. Since users will probably only view a small number of these records, only 10 records should be fetched at one time. How would you create the data block?（）ASelect 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. BChoose Tools - Data Block Wizard, select Table as the data source type, and base the block on the columns from the tables. CChoose Tools - Data Block Wizard, select, View as the data source type, and base the block on the columns from the tables. DSelect 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 'FROM clause query', and enter the SELECT statement in the Query Data Source Name property. ESelect the Data Block node in the Object Navigator and click the Create button. Alter the Query Data Source Type, Query Data Source Name, Query Data Sources Columns, and Query Data Source Arguments properties to create a stored procedure that uses a red cursor.
单选题Which statement is true regarding the INTERSECT operator?（）AIt ignores NULL values BReversing the order of the intersected tables alters the result CThe names of columns in all SELECT statements must be identical DThe number of columns and data types must be identical for all SELECT statements in the query
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 AB Exhibit BC The query returns no rowsD The query fails because the outer query is retrieving more than one columnE The query fails because both the inner and outer queries are retrieving data from the same table.
多选题Which two statements are true regarding the ORDER BY clause? （）AIt is executed first in the query executionBIt must be the last clause in the SELECT statementCIt cannot be used in a SELECT statement containing a HAVING clauseDYou cannot specify a column name followed by an expression in this clauseEYou can specify a combination of numeric positions and column names in this clause
单选题Which object may be used during query optimization to improve the performance for a subset of SELECT queries?（）AMQTBTriggerCRead Only CursorDStored Procedure