code: public void addColumn(String tableName, String columnName, String columnDef) {
  		execSQL("ALTER TABLE " + CoreSQLUtils.quoteWrap(tableName)
  				+ " ADD COLUMN " + CoreSQLUtils.quoteWrap(columnName) + " "
  				+ columnDef + ";");
  	}
docs: Add a new column to the table
  
  @param tableName
  table name
  @param columnName
  column name
  @param columnDef
  column definition
  @since 1.1.8