added liquibase preconditions to system table creation

.liquibase/_____SYSTEMALIAS/basic/init/struct/create_asys_aliasconfig.xml

 <?xml version="1.1" encoding="UTF-8" standalone="no"?>
 <databaseChangeLog xmlns="http://www.liquibase.org/xml/ns/dbchangelog" xmlns:ext="http://www.liquibase.org/xml/ns/dbchangelog-ext" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.liquibase.org/xml/ns/dbchangelog-ext http://www.liquibase.org/xml/ns/dbchangelog/dbchangelog-ext.xsd http://www.liquibase.org/xml/ns/dbchangelog http://www.liquibase.org/xml/ns/dbchangelog/dbchangelog-3.6.xsd">
 <changeSet author="j.hoermann" id="fcb1ff99-55bd-4ebc-8137-ec05b4cacbd7">
+    <preConditions onFail="MARK_RAN">
+      <not>
+        <tableExists tableName="ASYS_ALIASCONFIG" />
+      </not>
+    </preConditions>
     <createTable tableName="ASYS_ALIASCONFIG">
         <column name="ID" type="CHAR(36)">
             <constraints primaryKey="true" primaryKeyName="PK_ASYS_ALIASCONFIG_ID"/>

.liquibase/_____SYSTEMALIAS/basic/init/struct/create_asys_audit.xml

 <?xml version="1.1" encoding="UTF-8" standalone="no"?>
 <databaseChangeLog xmlns="http://www.liquibase.org/xml/ns/dbchangelog" xmlns:ext="http://www.liquibase.org/xml/ns/dbchangelog-ext" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.liquibase.org/xml/ns/dbchangelog-ext http://www.liquibase.org/xml/ns/dbchangelog/dbchangelog-ext.xsd http://www.liquibase.org/xml/ns/dbchangelog http://www.liquibase.org/xml/ns/dbchangelog/dbchangelog-3.6.xsd">
 <changeSet author="m.schloder" id="Xcb1ff99-55bd-4ebc-8137-ec05b4cacbd7">
+    <preConditions onFail="MARK_RAN">
+      <not>
+        <tableExists tableName="ASYS_AUDIT" />
+      </not>
+    </preConditions>
     <createTable tableName="ASYS_AUDIT">
         <column name="ACOLUMNNAME" type="VARCHAR(217)"/>
 		<column name="ALIAS" type="VARCHAR(255)"/>

.liquibase/_____SYSTEMALIAS/basic/init/struct/create_asys_binaries.xml

 <?xml version="1.1" encoding="UTF-8" standalone="no"?>
 <databaseChangeLog xmlns="http://www.liquibase.org/xml/ns/dbchangelog" xmlns:ext="http://www.liquibase.org/xml/ns/dbchangelog-ext" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.liquibase.org/xml/ns/dbchangelog-ext http://www.liquibase.org/xml/ns/dbchangelog/dbchangelog-ext.xsd http://www.liquibase.org/xml/ns/dbchangelog http://www.liquibase.org/xml/ns/dbchangelog/dbchangelog-3.6.xsd">
 <changeSet author="j.hoermann" id="7025fee9-8de1-430c-824c-df4b74976333">
+    <preConditions onFail="MARK_RAN">
+      <not>
+        <tableExists tableName="ASYS_BINARIES" />
+      </not>
+    </preConditions>
     <createTable tableName="ASYS_BINARIES">
         <column name="ID" type="CHAR(36)">
             <constraints primaryKey="true" primaryKeyName="PK_ASYS_BINARIES_ID"/>

.liquibase/_____SYSTEMALIAS/basic/init/struct/create_asys_calendarbackend.xml

 <?xml version="1.1" encoding="UTF-8" standalone="no"?>
 <databaseChangeLog xmlns="http://www.liquibase.org/xml/ns/dbchangelog" xmlns:ext="http://www.liquibase.org/xml/ns/dbchangelog-ext" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.liquibase.org/xml/ns/dbchangelog-ext http://www.liquibase.org/xml/ns/dbchangelog/dbchangelog-ext.xsd http://www.liquibase.org/xml/ns/dbchangelog http://www.liquibase.org/xml/ns/dbchangelog/dbchangelog-3.6.xsd">
 <changeSet author="a.schindlbeck" id="647ddc15-7bde-4b04-81e4-9a62a24aa5b7">
+    <preConditions onFail="MARK_RAN">
+      <not>
+        <tableExists tableName="ASYS_CALENDARBACKEND" />
+      </not>
+    </preConditions>
     <createTable tableName="ASYS_CALENDARBACKEND">
         <column name="DATASETID" type="CHAR(36)">
             <constraints nullable="false" primaryKey="true" primaryKeyName="PK_ASYS_CALENDARBACKEND_DATASETID"/>

.liquibase/_____SYSTEMALIAS/basic/init/struct/create_asys_calendarlink.xml

 <?xml version="1.1" encoding="UTF-8" standalone="no"?>
 <databaseChangeLog xmlns="http://www.liquibase.org/xml/ns/dbchangelog" xmlns:ext="http://www.liquibase.org/xml/ns/dbchangelog-ext" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.liquibase.org/xml/ns/dbchangelog-ext http://www.liquibase.org/xml/ns/dbchangelog/dbchangelog-ext.xsd http://www.liquibase.org/xml/ns/dbchangelog http://www.liquibase.org/xml/ns/dbchangelog/dbchangelog-3.6.xsd">
 <changeSet author="a.schindlbeck" id="c31ed111-b98d-46b6-b7bf-845420624e28">
+    <preConditions onFail="MARK_RAN">
+      <not>
+        <tableExists tableName="ASYS_CALENDARLINK" />
+      </not>
+    </preConditions>
     <createTable tableName="ASYS_CALENDARLINK">
         <column name="ID" type="CHAR(36)">
             <constraints nullable="false" primaryKey="true" primaryKeyName="PK_ASYS_CALENDARLINK_ID"/>

.liquibase/_____SYSTEMALIAS/basic/init/struct/create_asys_collector_data.xml

 <?xml version="1.1" encoding="UTF-8" standalone="no"?>
 <databaseChangeLog xmlns="http://www.liquibase.org/xml/ns/dbchangelog" xmlns:ext="http://www.liquibase.org/xml/ns/dbchangelog-ext" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.liquibase.org/xml/ns/dbchangelog-ext http://www.liquibase.org/xml/ns/dbchangelog/dbchangelog-ext.xsd http://www.liquibase.org/xml/ns/dbchangelog http://www.liquibase.org/xml/ns/dbchangelog/dbchangelog-3.6.xsd">
     <changeSet author="j.hoermann" id="4fe7309e-e131-4f3d-8e65-fb399fcd7090">
+        <preConditions onFail="MARK_RAN">
+            <not>
+                <tableExists tableName="ASYS_COLLECTOR_DATA" />
+            </not>
+        </preConditions>
         <createTable tableName="ASYS_COLLECTOR_DATA">
             <column name="DATAID" type="CHAR(63)">
                 <constraints nullable="false"/>

.liquibase/_____SYSTEMALIAS/basic/init/struct/create_asys_collector_tags.xml

 <?xml version="1.1" encoding="UTF-8" standalone="no"?>
 <databaseChangeLog xmlns="http://www.liquibase.org/xml/ns/dbchangelog" xmlns:ext="http://www.liquibase.org/xml/ns/dbchangelog-ext" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.liquibase.org/xml/ns/dbchangelog-ext http://www.liquibase.org/xml/ns/dbchangelog/dbchangelog-ext.xsd http://www.liquibase.org/xml/ns/dbchangelog http://www.liquibase.org/xml/ns/dbchangelog/dbchangelog-3.6.xsd">
     <changeSet author="j.hoermann" id="4fe7309e-e131-4f3d-8e65-fb399fcd7090">
+        <preConditions onFail="MARK_RAN">
+            <not>
+                <tableExists tableName="ASYS_COLLECTOR_TAGS" />
+            </not>
+        </preConditions>
         <createTable tableName="ASYS_COLLECTOR_TAGS">
             <column name="COLLECTORDATAID" type="CHAR(63)">
                 <constraints nullable="false"/>

.liquibase/_____SYSTEMALIAS/basic/init/struct/create_asys_dashletconfigurations.xml

 <?xml version="1.1" encoding="UTF-8" standalone="no"?>
 <databaseChangeLog xmlns="http://www.liquibase.org/xml/ns/dbchangelog" xmlns:ext="http://www.liquibase.org/xml/ns/dbchangelog-ext" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.liquibase.org/xml/ns/dbchangelog-ext http://www.liquibase.org/xml/ns/dbchangelog/dbchangelog-ext.xsd http://www.liquibase.org/xml/ns/dbchangelog http://www.liquibase.org/xml/ns/dbchangelog/dbchangelog-3.6.xsd">
 <changeSet author="j.hoermann" id="a510b5e9-e599-4503-8bcd-4ef2465f56c6">
+    <preConditions onFail="MARK_RAN">
+      <not>
+        <tableExists tableName="ASYS_DASHLETCONFIGURATIONS" />
+      </not>
+    </preConditions>
     <createTable tableName="ASYS_DASHLETCONFIGURATIONS">
         <column name="ID" type="CHAR(63)">
             <constraints primaryKey="true" primaryKeyName="PK_ASYS_ASYS_DASHLETCONFIGURATIONS_ID"/>

.liquibase/_____SYSTEMALIAS/basic/init/struct/create_asys_dashlets.xml

 <?xml version="1.1" encoding="UTF-8" standalone="no"?>
 <databaseChangeLog xmlns="http://www.liquibase.org/xml/ns/dbchangelog" xmlns:ext="http://www.liquibase.org/xml/ns/dbchangelog-ext" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.liquibase.org/xml/ns/dbchangelog-ext http://www.liquibase.org/xml/ns/dbchangelog/dbchangelog-ext.xsd http://www.liquibase.org/xml/ns/dbchangelog http://www.liquibase.org/xml/ns/dbchangelog/dbchangelog-3.6.xsd">
     <changeSet author="j.hoermann" id="dbdfa16c-8e62-4fc6-8d79-2a14a0d863c5">
+        <preConditions onFail="MARK_RAN">
+            <not>
+                <tableExists tableName="ASYS_DASHLETS" />
+            </not>
+        </preConditions>
         <createTable tableName="ASYS_DASHLETS">
             <column name="ID" type="CHAR(63)">
                 <constraints primaryKey="true" primaryKeyName="PK_ASYS_DASHLETS_ID"/>

.liquibase/_____SYSTEMALIAS/basic/init/struct/create_asys_monitor_dashletconfig.xml

 <?xml version="1.1" encoding="UTF-8" standalone="no"?>
 <databaseChangeLog xmlns="http://www.liquibase.org/xml/ns/dbchangelog" xmlns:ext="http://www.liquibase.org/xml/ns/dbchangelog-ext" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.liquibase.org/xml/ns/dbchangelog-ext http://www.liquibase.org/xml/ns/dbchangelog/dbchangelog-ext.xsd http://www.liquibase.org/xml/ns/dbchangelog http://www.liquibase.org/xml/ns/dbchangelog/dbchangelog-3.6.xsd">
 <changeSet author="m.sieber" id="b510b5e9-e599-4503-8bcd-4ef2465f56c6">
+    <preConditions onFail="MARK_RAN">
+      <not>
+        <tableExists tableName="ASYS_MONITOR_DASHLETCONFIG" />
+      </not>
+    </preConditions>
     <createTable tableName="ASYS_MONITOR_DASHLETCONFIG">
         <column name="ID" type="CHAR(63)">
             <constraints primaryKey="true" primaryKeyName="PK_ASYS_MONITOR_DASHLETCONFIG_ID"/>

.liquibase/_____SYSTEMALIAS/basic/init/struct/create_asys_notificationcontents.xml

 <?xml version="1.1" encoding="UTF-8" standalone="no"?>
 <databaseChangeLog xmlns="http://www.liquibase.org/xml/ns/dbchangelog" xmlns:ext="http://www.liquibase.org/xml/ns/dbchangelog-ext" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.liquibase.org/xml/ns/dbchangelog-ext http://www.liquibase.org/xml/ns/dbchangelog/dbchangelog-ext.xsd http://www.liquibase.org/xml/ns/dbchangelog http://www.liquibase.org/xml/ns/dbchangelog/dbchangelog-3.6.xsd">
 <changeSet author="a.schindlbeck" id="6b25f062-fb39-4230-9348-b67ec5ec45a1">
+    <preConditions onFail="MARK_RAN">
+      <not>
+        <tableExists tableName="ASYS_NOTIFICATIONCONTENTS" />
+      </not>
+    </preConditions>
     <createTable tableName="ASYS_NOTIFICATIONCONTENTS">
         <column name="CONTENTID" type="CHAR(36)">
             <constraints primaryKey="true" primaryKeyName="PK_ASYS_NOTIFICATIONCONTENTS_CONTENTID"/>

.liquibase/_____SYSTEMALIAS/basic/init/struct/create_asys_notifications.xml

 <?xml version="1.1" encoding="UTF-8" standalone="no"?>
 <databaseChangeLog xmlns="http://www.liquibase.org/xml/ns/dbchangelog" xmlns:ext="http://www.liquibase.org/xml/ns/dbchangelog-ext" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.liquibase.org/xml/ns/dbchangelog-ext http://www.liquibase.org/xml/ns/dbchangelog/dbchangelog-ext.xsd http://www.liquibase.org/xml/ns/dbchangelog http://www.liquibase.org/xml/ns/dbchangelog/dbchangelog-3.6.xsd">
 <changeSet author="a.schindlbeck" id="98f057b6-0140-4edd-b08d-9cc7cf178bab">
+    <preConditions onFail="MARK_RAN">
+      <not>
+        <tableExists tableName="ASYS_NOTIFICATIONS" />
+      </not>
+    </preConditions>
     <createTable tableName="ASYS_NOTIFICATIONS">
         <column name="ID" type="CHAR(36)">
             <constraints primaryKey="true" primaryKeyName="PK_ASYS_NOTIFICATIONS_ID"/>

.liquibase/_____SYSTEMALIAS/basic/init/struct/create_asys_permission.xml

 <?xml version="1.1" encoding="UTF-8" standalone="no"?>
 <databaseChangeLog xmlns="http://www.liquibase.org/xml/ns/dbchangelog" xmlns:ext="http://www.liquibase.org/xml/ns/dbchangelog-ext" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.liquibase.org/xml/ns/dbchangelog-ext http://www.liquibase.org/xml/ns/dbchangelog/dbchangelog-ext.xsd http://www.liquibase.org/xml/ns/dbchangelog http://www.liquibase.org/xml/ns/dbchangelog/dbchangelog-3.6.xsd">
     <changeSet author="s.leipold" id="746f6e0c-3eab-4424-867f-4cf4fb4c45bc">
+        <preConditions onFail="MARK_RAN">
+            <not>
+                <tableExists tableName="ASYS_PERMISSION" />
+            </not>
+        </preConditions>
         <createTable tableName="ASYS_PERMISSION">
             <column name="ASYS_PERMISSIONID" type="CHAR(36)">
                 <constraints primaryKey="true" primaryKeyName="PK_ASYS_PERMISSION_ID"/>

.liquibase/_____SYSTEMALIAS/basic/init/struct/create_asys_permissionaction.xml

 <?xml version="1.1" encoding="UTF-8" standalone="no"?>
 <databaseChangeLog xmlns="http://www.liquibase.org/xml/ns/dbchangelog" xmlns:ext="http://www.liquibase.org/xml/ns/dbchangelog-ext" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.liquibase.org/xml/ns/dbchangelog-ext http://www.liquibase.org/xml/ns/dbchangelog/dbchangelog-ext.xsd http://www.liquibase.org/xml/ns/dbchangelog http://www.liquibase.org/xml/ns/dbchangelog/dbchangelog-3.6.xsd">
     <changeSet author="s.leipold" id="20241de4-091e-4093-8055-c87c172e5788">
+        <preConditions onFail="MARK_RAN">
+            <not>
+                <tableExists tableName="ASYS_PERMISSIONACTION" />
+            </not>
+        </preConditions>
         <createTable tableName="ASYS_PERMISSIONACTION">
             <column name="ASYS_PERMISSIONACTIONID" type="CHAR(36)">
                 <constraints primaryKey="true" primaryKeyName="PK_ASYS_PERMISSIONACTION_ID"/>

.liquibase/_____SYSTEMALIAS/basic/init/struct/create_asys_permissionset.xml

 <?xml version="1.1" encoding="UTF-8" standalone="no"?>
 <databaseChangeLog xmlns="http://www.liquibase.org/xml/ns/dbchangelog" xmlns:ext="http://www.liquibase.org/xml/ns/dbchangelog-ext" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.liquibase.org/xml/ns/dbchangelog-ext http://www.liquibase.org/xml/ns/dbchangelog/dbchangelog-ext.xsd http://www.liquibase.org/xml/ns/dbchangelog http://www.liquibase.org/xml/ns/dbchangelog/dbchangelog-3.6.xsd">
     <changeSet author="s.leipold" id="8a125d57-48c6-4d2e-9568-d5e66f72a702">
+        <preConditions onFail="MARK_RAN">
+            <not>
+                <tableExists tableName="ASYS_PERMISSIONSET" />
+            </not>
+        </preConditions>
         <createTable tableName="ASYS_PERMISSIONSET">
             <column name="ASYS_PERMISSIONSETID" type="CHAR(36)">
                 <constraints primaryKey="true" primaryKeyName="PK_ASYS_PERMISSIONSET_ID"/>

.liquibase/_____SYSTEMALIAS/basic/init/struct/create_asys_record.xml

 <?xml version="1.1" encoding="UTF-8" standalone="no"?>
 <databaseChangeLog xmlns="http://www.liquibase.org/xml/ns/dbchangelog" xmlns:ext="http://www.liquibase.org/xml/ns/dbchangelog-ext" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.liquibase.org/xml/ns/dbchangelog-ext http://www.liquibase.org/xml/ns/dbchangelog/dbchangelog-ext.xsd http://www.liquibase.org/xml/ns/dbchangelog http://www.liquibase.org/xml/ns/dbchangelog/dbchangelog-3.6.xsd">
 <changeSet author="a.schindlbeck" id="55fc4812-a4b7-4a53-a369-8b644ec78cae">
+    <preConditions onFail="MARK_RAN">
+      <not>
+        <tableExists tableName="ASYS_RECORD" />
+      </not>
+    </preConditions>
     <createTable tableName="ASYS_RECORD">
         <column name="ID" type="CHAR(36)">
             <constraints primaryKey="true" primaryKeyName="PK_ASYS_RECORD_ID"/>

.liquibase/_____SYSTEMALIAS/basic/init/struct/create_asys_recordgroup.xml

 <?xml version="1.1" encoding="UTF-8" standalone="no"?>
 <databaseChangeLog xmlns="http://www.liquibase.org/xml/ns/dbchangelog" xmlns:ext="http://www.liquibase.org/xml/ns/dbchangelog-ext" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.liquibase.org/xml/ns/dbchangelog-ext http://www.liquibase.org/xml/ns/dbchangelog/dbchangelog-ext.xsd http://www.liquibase.org/xml/ns/dbchangelog http://www.liquibase.org/xml/ns/dbchangelog/dbchangelog-3.6.xsd">
 <changeSet author="a.schindlbeck" id="56a34dfc-3c0d-48e1-8890-31c0c93f1942">
+    <preConditions onFail="MARK_RAN">
+      <not>
+        <tableExists tableName="ASYS_RECORDGROUP" />
+      </not>
+    </preConditions>
     <createTable tableName="ASYS_RECORDGROUP">
         <column name="ID" type="CHAR(36)">
             <constraints primaryKey="true" primaryKeyName="PK_ASYS_RECORD_GROUP_ID"/>

.liquibase/_____SYSTEMALIAS/basic/init/struct/create_asys_roles.xml

 <?xml version="1.1" encoding="UTF-8" standalone="no"?>
 <databaseChangeLog xmlns="http://www.liquibase.org/xml/ns/dbchangelog" xmlns:ext="http://www.liquibase.org/xml/ns/dbchangelog-ext" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.liquibase.org/xml/ns/dbchangelog-ext http://www.liquibase.org/xml/ns/dbchangelog/dbchangelog-ext.xsd http://www.liquibase.org/xml/ns/dbchangelog http://www.liquibase.org/xml/ns/dbchangelog/dbchangelog-3.6.xsd">
     <changeSet author="j.hoermann" id="feba765a-3a21-4bd3-8970-6fea8a2685d8">
+        <preConditions onFail="MARK_RAN">
+            <not>
+                <tableExists tableName="ASYS_ROLES" />
+            </not>
+        </preConditions>
         <createTable tableName="ASYS_ROLES">
             <column name="ROLENAME" type="VARCHAR(63)">
                 <constraints primaryKey="true" primaryKeyName="PK_ASYS_ROLES_ID"/>

.liquibase/_____SYSTEMALIAS/basic/init/struct/create_asys_roles_children.xml

 <?xml version="1.1" encoding="UTF-8" standalone="no"?>
 <databaseChangeLog xmlns="http://www.liquibase.org/xml/ns/dbchangelog" xmlns:ext="http://www.liquibase.org/xml/ns/dbchangelog-ext" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.liquibase.org/xml/ns/dbchangelog-ext http://www.liquibase.org/xml/ns/dbchangelog/dbchangelog-ext.xsd http://www.liquibase.org/xml/ns/dbchangelog http://www.liquibase.org/xml/ns/dbchangelog/dbchangelog-3.6.xsd">
     <changeSet author="j.hoermann" id="6348baa4-ec14-40c7-94db-93fdde0f89dc">
+        <preConditions onFail="MARK_RAN">
+            <not>
+                <tableExists tableName="ASYS_ROLES_CHILDREN" />
+            </not>
+        </preConditions>
         <createTable tableName="ASYS_ROLES_CHILDREN">
             <column name="ID" type="CHAR(36)">
                 <constraints primaryKey="true" primaryKeyName="PK_ASYS_ROLES_CHILDREN_ID"/>

.liquibase/_____SYSTEMALIAS/basic/init/struct/create_asys_sequences.xml

 <?xml version="1.1" encoding="UTF-8" standalone="no"?>
 <databaseChangeLog xmlns="http://www.liquibase.org/xml/ns/dbchangelog" xmlns:ext="http://www.liquibase.org/xml/ns/dbchangelog-ext" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.liquibase.org/xml/ns/dbchangelog-ext http://www.liquibase.org/xml/ns/dbchangelog/dbchangelog-ext.xsd http://www.liquibase.org/xml/ns/dbchangelog http://www.liquibase.org/xml/ns/dbchangelog/dbchangelog-3.6.xsd">
 <changeSet author="j.hoermann" id="1a2254ac-b754-48ed-8abe-f656f65edb96">
+    <preConditions onFail="MARK_RAN">
+      <not>
+        <tableExists tableName="ASYS_SEQUENCES" />
+      </not>
+    </preConditions>
     <createTable tableName="ASYS_SEQUENCES">
         <column name="ID_TABLE" type="VARCHAR(127)">
             <constraints primaryKey="true" primaryKeyName="PK_ASYS_SEQUENCES_ID_TABLE"/>