1Z0-117 · Question #31
Exhibit A table has three distinct values in its ID column. In the ID column, values 10 and 20 have more than 20000 rows each and value 30 has only five rows. The statistics for the schema have been…
The correct answer is C. Adaptive cursor sharing will ensure that a new cursor is generated for each distinct value in the bind variable. CURSOR_SHARING determines what kind of SQL statements can share the same cursors. Setting CURSOR_SHARING to EXACT allows SQL statements to share the SQL area only when their texts match exactly. This is the default behavior. Using this setting, similar statements cannot shared…
Question
Exhibit A table has three distinct values in its ID column. In the ID column, values 10 and 20 have more than 20000 rows each and value 30 has only five rows. The statistics for the schema have been updated recently. The CURSOR_SHARING parameter is set to EXACT. The query was executed recently and the cursor for the query is bind aware. Examine the exhibits to view the commands executed. You plan to execute the same query with a value of 30 for the bind variable V_ID. Which statement is true in this scenario?
Exhibit
Options
- AThe same execution plan will always be used irrespective of the value in the bind variable.
- BA new execution plan will be generated depending on the access pattern and the bind value.
- CAdaptive cursor sharing will ensure that a new cursor is generated for each distinct value in the bind variable.
- DAdaptive cursor sharing will happen only if you use the literal values instead of bind variables in the query.
How the community answered
(60 responses)- A7% (4)
- B17% (10)
- C73% (44)
- D3% (2)
Explanation
- CURSOR_SHARING determines what kind of SQL statements can share the same cursors. * Setting CURSOR_SHARING to EXACT allows SQL statements to share the SQL area only when their texts match exactly. This is the default behavior. Using this setting, similar statements cannot shared; only textually exact statements can be shared. Forces statements that may differ in some literals, but are otherwise identical, to share a cursor, unless the literals affect the meaning of the statement. Causes statements that may differ in some literals, but are otherwise identical, to share a cursor, unless the literals affect either the meaning of the statement or the degree to which the plan is Only allows statements with identical text to share the same cursor.
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