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Sets the designated parameter to a null value, given the type of parameter to set.
Syntax
public final void setNull(int index,
int jdbcType)
Parameters
index
An int that indicates the parameter number.
jdbcType
A JDBC type code that is defined by java.sql.Types.
Exceptions
Remarks
This setNull method is specified by the setNull method in the java.sql.PreparedStatement interface.