Answer Posted / uv

When Class.forName("<classname>") function gets
executed,the class gets loaded in JVM.

To create an object and access its functions and variables,
we can use getInstance( ), please look into the below
fragment code:

Class c = Class.forName("Cls");
Object o = null;
o = c.getInstance( );
// type casting the Object
Cls cl = (Cls) o;

What isolation level is used by the DBMS when inserting, updating and selecting rows from a database?

921

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Which is faster jdbc or odbc?

846

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What is odbc and jdbc drivers?

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Write an sql to find all records having all numeric characters in a field ?

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Is jdbc a protocol?

880

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How can we execute stored procedures using callablestatement?

886

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What are the methods which can verify the cursor particular position?

953

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What are the considerations for deciding on transaction boundaries?

949

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How can I write to the log used by DriverManager and JDBC drivers?

950

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Prepared statements are faster. Why?

1001

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What are clob and blob data types in jdbc?

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What driver should I use for scalable Oracle JDBC applications?

929

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How do I retrieve a whole row of data at once, instead of calling an individual ResultSet.getXXX method for each column?

1017

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Explain the locking system in jdbc & its types?

904

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