--- a/ilfwn/src/main/resources/org/wnsql/builder/ilfwn/test.properties
+++ b/ilfwn/src/main/resources/org/wnsql/builder/ilfwn/test.properties
@@ -1,16 +1,16 @@
 ILFWNlf.table=ilfs
-ILFWNlf.create=CREATE TABLE %ILFWNlf.table% (wordid INTEGER NOT NULL,synsetid INTEGER NOT NULL,lf TEXT NOT NULL,prettylf TEXT NOT NULL,text TEXT NULL);
+ILFWNlf.create=CREATE TABLE IF NOT EXISTS %ILFWNlf.table% (wordid INTEGER NOT NULL,synsetid INTEGER NOT NULL,lf TEXT NOT NULL,prettylf TEXT NOT NULL,text TEXT NULL);
 ILFWNlf.insert=INSERT INTO %ILFWNlf.table% (wordid,synsetid,lf,prettylf,text) VALUES (?,?,?,?,?);
-ILFWNlf.unq=CREATE UNIQUE INDEX unq_%ILFWNlf.table%_wordid_synsetid_lf_prettylf ON %ILFWNlf.table% (wordid,synsetid,lf,prettylf);
-ILFWNlf.no-unq=DROP INDEX unq_%ILFWNlf.table%_wordid_synsetid_lf_prettylf;
-ILFWNlf.index1=CREATE INDEX k_%ILFWNlf.table%_wordid ON %ILFWNlf.table% (wordid);
-ILFWNlf.no-index1=DROP INDEX k_%ILFWNlf.table%_wordid;
-ILFWNlf.index2=CREATE INDEX k_%ILFWNlf.table%_synsetid ON %ILFWNlf.table% (synsetid);
-ILFWNlf.no-index2=DROP INDEX k_%ILFWNlf.table%_synsetid;
-ILFWNlf.fk1=ALTER TABLE %ILFWNlf.table% ADD CONSTRAINT fk_%ILFWNlf.table%_wordid FOREIGN KEY (wordid) REFERENCES %Word.table% (wordid);
-ILFWNlf.no-fk1=ALTER TABLE %ILFWNlf.table% DROP CONSTRAINT fk_%ILFWNlf.table%_wordid CASCADE;
-ILFWNlf.fk2=ALTER TABLE %ILFWNlf.table% ADD CONSTRAINT fk_%ILFWNlf.table%_synsetid FOREIGN KEY (synsetid) REFERENCES %Synset.table% (synsetid);
-ILFWNlf.no-fk2=ALTER TABLE %ILFWNlf.table% DROP CONSTRAINT fk_%ILFWNlf.table%_synsetid CASCADE;
+ILFWNlf.unq=CREATE UNIQUE INDEX IF NOT EXISTS unq_%ILFWNlf.table%_wordid_synsetid_lf_prettylf ON %ILFWNlf.table% (wordid,synsetid,lf,prettylf);
+ILFWNlf.no-unq=DROP INDEX IF EXISTS unq_%ILFWNlf.table%_wordid_synsetid_lf_prettylf;
+ILFWNlf.index1=CREATE INDEX IF NOT EXISTS k_%ILFWNlf.table%_wordid ON %ILFWNlf.table% (wordid);
+ILFWNlf.no-index1=DROP INDEX IF EXISTS k_%ILFWNlf.table%_wordid;
+ILFWNlf.index2=CREATE INDEX IF NOT EXISTS k_%ILFWNlf.table%_synsetid ON %ILFWNlf.table% (synsetid);
+ILFWNlf.no-index2=DROP INDEX IF EXISTS k_%ILFWNlf.table%_synsetid;
+ILFWNlf.fk1=
+ILFWNlf.no-fk1=
+ILFWNlf.fk2=
+ILFWNlf.no-fk2=
 ILFWNlf.select=SELECT %ILFWNlf.table%.synsetid,%ILFWNlf.table%.wsd,%ILFWNlf.table%.text FROM %ILFWNlf.table% WHERE %ILFWNlf.table%.synsetid = ? AND %ILFWNlf.table%.lf = ? AND %ILFWNlf.table%.text = ?;
 ILFWNlf.select2=SELECT %ILFWNlf.table%.synsetid,%ILFWNlf.table%.wsd,%ILFWNlf.table%.text FROM %ILFWNlf.table% WHERE %ILFWNlf.table%.synsetid = ? AND %ILFWNlf.table%.lf = ? AND %ILFWNlf.table%.text IS NULL;