diff -r b48a82a64a02 -r 3c6d560a1d14 java/sql-dk/src/info/globalcode/sql/dk/formatting/ColumnDescriptor.java
--- a/java/sql-dk/src/info/globalcode/sql/dk/formatting/ColumnDescriptor.java	Sun Apr 06 17:53:36 2014 +0200
+++ b/java/sql-dk/src/info/globalcode/sql/dk/formatting/ColumnDescriptor.java	Sun Apr 06 23:32:54 2014 +0200
@@ -17,6 +17,8 @@
  */
 package info.globalcode.sql.dk.formatting;
 
+import java.sql.Types;
+
 /**
  *
  * @author Ing. František Kučera (frantovo.cz)
@@ -96,4 +98,25 @@
 	public void setColumnNumber(int columnNumber) {
 		this.columnNumber = columnNumber;
 	}
+
+	public boolean isBoolean() {
+		return type == Types.BOOLEAN;
+	}
+
+	public boolean isNumeric() {
+		switch (type) {
+			case Types.BIGINT:
+			case Types.DECIMAL:
+			case Types.DOUBLE:
+			case Types.FLOAT:
+			case Types.INTEGER:
+			case Types.NUMERIC:
+			case Types.REAL:
+			case Types.SMALLINT:
+			case Types.TINYINT:
+				return true;
+			default:
+				return false;
+		}
+	}
 }