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Data Access Interview Questions and Answers

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Data Access Interview Questions & Answers


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Questions Question: There is a field of type character in the table, but we are storing numeric values like (Roll number) in this field, so if we want to sort the field (in java) according to numbers.How?
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Questions Question: What is the differnece between materialized view and snapshot
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Questions Question: When does a Transaction end ?
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Questions Question: What does COMMIT do ?
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Questions Question: What does ROLLBACK do ?
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Questions Question: What is SAVE POINT ?
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Questions Question: What is Read-Only Transaction ?
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Questions Question: What is the function of Optimizer ?
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Questions Question: What is Execution Plan ?
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Questions Question: What are the different approaches used by Optimizer in choosing an execution plan ?
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Questions Question: What are the factors that affect OPTIMIZER in choosing an Optimization approach ?
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Questions Question: What are the values that can be specified for OPTIMIZER MODE Parameter ?
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Questions Question: What are the values that can be specified for OPTIMIZER_GOAL parameter of the ALTER SESSION Command ?
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Questions Question: What is the effect of setting the value "CHOOSE" for OPTIMIZER_GOAL, parameter of the ALTER SESSION Command ?
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Questions Question: What is the effect of setting the value "ALL_ROWS" for OPTIMIZER_GOAL parameter of the ALTER SESSION command ?
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Questions Question: What is RULE-based approach to optimization ?
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Questions Question: What is COST-based approach to optimization ?
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Questions Question: What are the steps involved in Database Startup ?
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Latest 10 Answers
When there is any situation that u should attach a new patch to ur kernel , then download the patch and install it,to make changes to kernel , go to ok prompt and type boot -r, it will update or reconfigure the kernel
Honesty, helpful and reliable
procedure is a set of sql statement ,are combined to gether to perform a specific task or to solve a specifi problem.it does not return value.
leadership is power to influence a group so that the members willingly exert efforts as aspired by the leader.
I have the unique combination of technical skill and the ability to build strong customer relationship. I have the ability to stay focussed in stressfull situation. I would be great addition to your team.
first execute the bc search spec to fetch the data then executes the applet search spec if applet search spec is not match with bc it skips
TCP-Transmission Control Protocol. TCP is Reliable. TCP is Connection oriented. UDP-User Datagram Protoco UDP is Unreliable. UDP is Connectionless.
By default in structure all data member and member function are public,i,e if you not mentation any access specifier. But in case of class By default all data member and member function are private.
Structure is a user defined data type. By default all structure variables are public type and we cann't use access specifier in structure type variable, where as in class we can define objects(variables) under required access specifier type.
variable cost is the cost which is not fixed in nature

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