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SQL Plus Interview Questions and Answers

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SQL Plus Interview Questions & Answers


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Questions Question: State the advatage and disadvantage of Cursor's
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Questions Question: What is a transaction ?
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Questions Question: What is difference between TRUNCATE & DELETE ?
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Questions Question: What is a join ?
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Questions Question: Explain the different types of joins ?
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Questions Question: What is the sub-query ?
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Questions Question: What is correlated sub-query
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Questions Question: Explain CONNECT BY PRIOR
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Questions Question: Difference between SUBSTR and INSTR
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Questions Question: Explain UNION, MINUS, UNION ALL and INTERSECT
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Questions Question: What is ROWID ?
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Questions Question: What is the fastest way of accessing a row in a table ?
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Questions Question: What is an integrity constraint ?
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Questions Question: What is referential integrity constraint ?
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Questions Question: What is the usage of SAVEPOINTS ?
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Questions Question: What is ON DELETE CASCADE ?
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Questions Question: What are the data types allowed in a table ?
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Questions Question: What is difference between CHAR and VARCHAR2 ?
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Questions Question: What is the maximum SIZE allowed for each type ?
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Questions Question: How many LONG columns are allowed in a table
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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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