getBlob(String columnLabel)

Syntax:

Blob getBlob(String columnLabel)
             throws SQLException

Description:

Retrieves the value of the designated column in the current row of this ResultSet object as a Blob object in the Java programming language.

Parameters:

columnLabel

the label for the column specified with the SQL AS clause. If the SQL AS clause was not specified, then the label is the name of the column

Returns:

a Blob object representing the SQL BLOB value in the specified column

Throws:

SQLException - if a database access error occurs, columnName is not a valid column label, or this method is called on a closed result set.

Reference:

For more information, reference JDBC documentation for: ResultSet.getBlob(String)