DB2 support 'skip locked data' on DB2

For HHH-14210

hibernate-core/src/main/java/org/hibernate/dialect/DB2Dialect.java

@@ -328,6 +328,15 @@ public class DB2Dialect extends Dialect {
 		return " for read only with rs use and keep update locks";
 	}
 
+	@Override
+	public boolean supportsSkipLocked() {
+		return true;
+	}
+
+	@Override
+	public String getForUpdateSkipLockedString() {
+		return getForUpdateString() + " skip locked data";
+	}
 	@Override
 	public boolean supportsOuterJoinForUpdate() {
 		return false;