Java Databases (GATE - CS)

This is the correct answer because there is no method named getColumnSize(int column) in ResultSetMetaData interface. The correct method name is getColumnDisplaySize(int column), which indicates the designated column's normal maximum width in characters.

This is the correct option because there is no method named allTablesSelected() in DatabaseMetaData. The correct method is allTablesAreSelectable() and it retrieves whether the current user can call all the procedures returned by the method getProcedures or not.

This is the correct answer because getMaxCharLiteralLength() is defined in the DatabaseMetaData interface and it retrieves the maximum number of characters the database allows for a character literal.

This is the correct option because there is no method named deleteColumn() defined in ResultSet interface.

This is the correct option because getTime() method is defined in the Timestamp class in Java and it returns the number of milliseconds since January 1, 1970, 00:00:00 GMT represented by this Timestamp object.

This is the correct answer because refreshRow() method is defined in the ResultSet interface and it refreshes the current row with its most recent value in the database.

This is the correct answer because getDriverMajorVersion() method is defined in the DatabaseMetaData interface and it retrieves the JDBC driver's major version number.

This is the correct answer because there are 9 methods defined in the Date class. These are:
1) getHours()
2) getMinutes()
3) getSeconds()
4) setHours(int i)
5) setMinutes(int i)
6) setSeconds(int i)
7) setTime(long date)
8) toString(): 
9) valueOf(String s)

This is the correct option because isReadOnly() method is defined in DatabaseMetaData. It retrieves whether this database is in read-only mode or not.

This is the correct option because there is no method named getLog() in DriverManager class. The correct method is getLogWriter(), which retrieves the log writer.

This is the correct option because there is no method named getParameterName(int param) in ParameterMetaData interface. The correct method is getParameterTypeName(int param), which retrieves the designated parameter's database-specific type name.

This is the correct option because getMaxColumnsInTable() method is defined in the DatabaseMetaData interface and it retrieves the maximum number of columns this database allows in a table.

This is the correct option because getMaxColumnNameLength() method is defined in DatabaseMetaData interface and it retrieves the maximum number of characters this database allows for a column name.

This is the correct answer because getParameterTypeName(int param) method is defined in ParameterMetaData interface and it retrieves the designated parameter's database-specific type name.

This is the correct option because isWritable(int column) is defined in ResultSetMetaData interface and it indicates whether it is possible for a write on the designated column to succeed or not.