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SQL Interview Questions & Answers


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Questions Question: Given an employee and manager table, write a SQL syntax that could be used to find out an employee's manager's manager, assuming all managers are in the employee table.
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Questions Question: What is the advantage to use trigger in your PL?
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Questions Question: What is Materialized View?
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Questions Question: What the difference between UNION and UNIONALL?
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Questions Question: How to find out the 10th highest salary in SQL query?
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Questions Question: How to find second maximum value from a table?
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Questions Question: What are the advantages and disadvantages of primary key and foreign key in SQL?
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Questions Question: How do you handle exceptions / errors in stored procedures?
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Questions Question: Which is the subset of SQL commands used to manipulate Oracle Database structures, including tables?
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Questions Question: What operator performs pattern matching?
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Questions Question: What operator tests column for the absence of data?
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Questions Question: Which command executes the contents of a specified file?
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Questions Question: What is the parameter substitution symbol used with INSERT INTO command?
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Questions Question: Which command displays the SQL command in the SQL buffer, and then executes it?
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Questions Question: What are the wildcards used for pattern matching.
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Questions Question: State true or false. EXISTS, SOME, ANY are operators in SQL.
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Questions Question: State true or false. !=, <>, ^= all denote the same operation.
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Questions Question: What are the privileges that can be granted on a table by a user to others?
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Questions Question: What command is used to get back the privileges offered by the GRANT command?
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Questions Question: Which system tables contain information on privileges granted and privileges obtained?
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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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