diff --git a/sql/characters.sql b/sql/characters.sql
index 7ab912fc6..3ffd1481f 100644
--- a/sql/characters.sql
+++ b/sql/characters.sql
@@ -262,6 +262,18 @@ CREATE TABLE IF NOT EXISTS `character_duplicate_account` (
 -- Data exporting was unselected.
 
 
+-- Dumping structure for table characters.character_forgotten_skills
+DROP TABLE IF EXISTS `character_forgotten_skills`;
+CREATE TABLE IF NOT EXISTS `character_forgotten_skills` (
+  `guid` int(11) unsigned NOT NULL COMMENT 'Global Unique Identifier',
+  `skill` mediumint(9) unsigned NOT NULL,
+  `value` mediumint(9) unsigned NOT NULL,
+  PRIMARY KEY (`guid`,`skill`)
+) ENGINE=MyISAM DEFAULT CHARSET=utf8 ROW_FORMAT=DYNAMIC COMMENT='Player System';
+
+-- Data exporting was unselected.
+
+
 -- Dumping structure for table characters.character_gifts
 DROP TABLE IF EXISTS `character_gifts`;
 CREATE TABLE IF NOT EXISTS `character_gifts` (
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rename from sql/migrations/20190108131223_world.sql
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diff --git a/sql/migrations/20190109163701_characters.sql b/sql/old_migrations/20190109163701_characters.sql
similarity index 100%
rename from sql/migrations/20190109163701_characters.sql
rename to sql/old_migrations/20190109163701_characters.sql
diff --git a/sql/migrations/20190110010547_world.sql b/sql/old_migrations/20190110010547_world.sql
similarity index 100%
rename from sql/migrations/20190110010547_world.sql
rename to sql/old_migrations/20190110010547_world.sql
diff --git a/sql/migrations/20190110011307_world.sql b/sql/old_migrations/20190110011307_world.sql
similarity index 100%
rename from sql/migrations/20190110011307_world.sql
rename to sql/old_migrations/20190110011307_world.sql
diff --git a/sql/migrations/20190110012200_world.sql b/sql/old_migrations/20190110012200_world.sql
similarity index 100%
rename from sql/migrations/20190110012200_world.sql
rename to sql/old_migrations/20190110012200_world.sql
diff --git a/sql/migrations/20190110012517_world.sql b/sql/old_migrations/20190110012517_world.sql
similarity index 100%
rename from sql/migrations/20190110012517_world.sql
rename to sql/old_migrations/20190110012517_world.sql
diff --git a/sql/migrations/20190110030022_world.sql b/sql/old_migrations/20190110030022_world.sql
similarity index 100%
rename from sql/migrations/20190110030022_world.sql
rename to sql/old_migrations/20190110030022_world.sql
diff --git a/sql/migrations/20190114014235_world.sql b/sql/old_migrations/20190114014235_world.sql
similarity index 100%
rename from sql/migrations/20190114014235_world.sql
rename to sql/old_migrations/20190114014235_world.sql
diff --git a/sql/migrations/20190114015508_world.sql b/sql/old_migrations/20190114015508_world.sql
similarity index 100%
rename from sql/migrations/20190114015508_world.sql
rename to sql/old_migrations/20190114015508_world.sql
diff --git a/sql/migrations/20190114020122_world.sql b/sql/old_migrations/20190114020122_world.sql
similarity index 100%
rename from sql/migrations/20190114020122_world.sql
rename to sql/old_migrations/20190114020122_world.sql
diff --git a/sql/migrations/20190114020358_world.sql b/sql/old_migrations/20190114020358_world.sql
similarity index 100%
rename from sql/migrations/20190114020358_world.sql
rename to sql/old_migrations/20190114020358_world.sql
diff --git a/sql/migrations/20190114022024_world.sql b/sql/old_migrations/20190114022024_world.sql
similarity index 100%
rename from sql/migrations/20190114022024_world.sql
rename to sql/old_migrations/20190114022024_world.sql
diff --git a/sql/migrations/20190115214718_world.sql b/sql/old_migrations/20190115214718_world.sql
similarity index 100%
rename from sql/migrations/20190115214718_world.sql
rename to sql/old_migrations/20190115214718_world.sql
diff --git a/sql/migrations/20190115223725_world.sql b/sql/old_migrations/20190115223725_world.sql
similarity index 100%
rename from sql/migrations/20190115223725_world.sql
rename to sql/old_migrations/20190115223725_world.sql
diff --git a/sql/migrations/20190118224538_world.sql b/sql/old_migrations/20190118224538_world.sql
similarity index 100%
rename from sql/migrations/20190118224538_world.sql
rename to sql/old_migrations/20190118224538_world.sql
diff --git a/sql/migrations/20190120060608_world.sql b/sql/old_migrations/20190120060608_world.sql
similarity index 100%
rename from sql/migrations/20190120060608_world.sql
rename to sql/old_migrations/20190120060608_world.sql
diff --git a/sql/migrations/20190122024303_world.sql b/sql/old_migrations/20190122024303_world.sql
similarity index 100%
rename from sql/migrations/20190122024303_world.sql
rename to sql/old_migrations/20190122024303_world.sql
diff --git a/sql/migrations/20190122043627_world.sql b/sql/old_migrations/20190122043627_world.sql
similarity index 100%
rename from sql/migrations/20190122043627_world.sql
rename to sql/old_migrations/20190122043627_world.sql
diff --git a/sql/migrations/20190123062532_world.sql b/sql/old_migrations/20190123062532_world.sql
similarity index 100%
rename from sql/migrations/20190123062532_world.sql
rename to sql/old_migrations/20190123062532_world.sql
diff --git a/sql/migrations/20190124061618_world.sql b/sql/old_migrations/20190124061618_world.sql
similarity index 100%
rename from sql/migrations/20190124061618_world.sql
rename to sql/old_migrations/20190124061618_world.sql
diff --git a/sql/migrations/20190126090508_world.sql b/sql/old_migrations/20190126090508_world.sql
similarity index 100%
rename from sql/migrations/20190126090508_world.sql
rename to sql/old_migrations/20190126090508_world.sql
diff --git a/sql/migrations/20190126165508_world.sql b/sql/old_migrations/20190126165508_world.sql
similarity index 100%
rename from sql/migrations/20190126165508_world.sql
rename to sql/old_migrations/20190126165508_world.sql
diff --git a/sql/migrations/20190201124101_world.sql b/sql/old_migrations/20190201124101_world.sql
similarity index 100%
rename from sql/migrations/20190201124101_world.sql
rename to sql/old_migrations/20190201124101_world.sql
diff --git a/sql/migrations/20190203133019_world.sql b/sql/old_migrations/20190203133019_world.sql
similarity index 100%
rename from sql/migrations/20190203133019_world.sql
rename to sql/old_migrations/20190203133019_world.sql
diff --git a/sql/migrations/20190203173247_world.sql b/sql/old_migrations/20190203173247_world.sql
similarity index 100%
rename from sql/migrations/20190203173247_world.sql
rename to sql/old_migrations/20190203173247_world.sql
diff --git a/sql/migrations/20190204113947_world.sql b/sql/old_migrations/20190204113947_world.sql
similarity index 100%
rename from sql/migrations/20190204113947_world.sql
rename to sql/old_migrations/20190204113947_world.sql
diff --git a/sql/migrations/20190204131040_world.sql b/sql/old_migrations/20190204131040_world.sql
similarity index 100%
rename from sql/migrations/20190204131040_world.sql
rename to sql/old_migrations/20190204131040_world.sql
diff --git a/sql/migrations/20190207163017_world.sql b/sql/old_migrations/20190207163017_world.sql
similarity index 100%
rename from sql/migrations/20190207163017_world.sql
rename to sql/old_migrations/20190207163017_world.sql
diff --git a/sql/migrations/20190207171305_world.sql b/sql/old_migrations/20190207171305_world.sql
similarity index 100%
rename from sql/migrations/20190207171305_world.sql
rename to sql/old_migrations/20190207171305_world.sql
diff --git a/src/game/ObjectMgr.cpp b/src/game/ObjectMgr.cpp
index e2f2882b2..12ea36cb3 100644
--- a/src/game/ObjectMgr.cpp
+++ b/src/game/ObjectMgr.cpp
@@ -5981,7 +5981,7 @@ void ObjectMgr::ReturnOrDeleteOldMails(bool serverUp)
 
 void ObjectMgr::LoadAreaTriggers()
 {
-    std::unique_ptr<QueryResult> result(WorldDatabase.PQuery("SELECT * FROM `areatrigger_template` WHERE `build`=%u", SUPPORTED_CLIENT_BUILD));
+    std::unique_ptr<QueryResult> result(WorldDatabase.PQuery("SELECT * FROM `areatrigger_template` t1 WHERE `build`=(SELECT max(`build`) FROM `areatrigger_template` t2 WHERE t1.`id`=t2.`id` && `build` <= %u)", SUPPORTED_CLIENT_BUILD));
 
     if (!result)
     {
@@ -7357,7 +7357,7 @@ void ObjectMgr::LoadFactions()
     {
         m_FactionsMap.clear();
         sLog.outString("Loading factions ...");
-        std::unique_ptr<QueryResult> result(WorldDatabase.PQuery("SELECT * FROM `faction` WHERE `build`=%u", SUPPORTED_CLIENT_BUILD));
+        std::unique_ptr<QueryResult> result(WorldDatabase.PQuery("SELECT * FROM `faction` t1 WHERE `build`=(SELECT max(`build`) FROM `faction` t2 WHERE t1.`id`=t2.`id` && `build` <= %u)", SUPPORTED_CLIENT_BUILD));
 
         if (!result)
         {
@@ -7425,7 +7425,7 @@ void ObjectMgr::LoadFactions()
     {
         m_FactionTemplatesMap.clear();
         sLog.outString("Loading faction tamplates ...");
-        std::unique_ptr<QueryResult> result(WorldDatabase.PQuery("SELECT * FROM `faction_template` WHERE `build`=%u", SUPPORTED_CLIENT_BUILD));
+        std::unique_ptr<QueryResult> result(WorldDatabase.PQuery("SELECT * FROM `faction_template` t1 WHERE `build`=(SELECT max(`build`) FROM `faction_template` t2 WHERE t1.`id`=t2.`id` && `build` <= %u)", SUPPORTED_CLIENT_BUILD));
 
         if (!result)
         {
@@ -7916,7 +7916,7 @@ void ObjectMgr::LoadCreatureInvolvedRelations()
 void ObjectMgr::LoadTaxiNodes()
 {
     // Getting the maximum ID.
-    std::unique_ptr<QueryResult> result(WorldDatabase.PQuery("SELECT MAX(`id`) FROM `taxi_nodes` WHERE `build`=%u", SUPPORTED_CLIENT_BUILD));
+    std::unique_ptr<QueryResult> result(WorldDatabase.PQuery("SELECT MAX(`id`) FROM `taxi_nodes` t1 WHERE `build`=(SELECT max(`build`) FROM `taxi_nodes` t2 WHERE t1.`id`=t2.`id` && `build` <= %u)", SUPPORTED_CLIENT_BUILD));
 
     if (!result)
     {
@@ -7932,7 +7932,7 @@ void ObjectMgr::LoadTaxiNodes()
     uint32 maxTaxiNodeEntry = fields[0].GetUInt32() + 1;
 
     // Actually loading the taxi nodes.
-    result.reset(WorldDatabase.PQuery("SELECT * FROM `taxi_nodes` WHERE `build`=%u", SUPPORTED_CLIENT_BUILD));
+    result.reset(WorldDatabase.PQuery("SELECT * FROM `taxi_nodes` t1 WHERE `build`=(SELECT max(`build`) FROM `taxi_nodes` t2 WHERE t1.`id`=t2.`id` && `build` <= %u)", SUPPORTED_CLIENT_BUILD));
 
     if (!result)
     {
@@ -8363,7 +8363,7 @@ void ObjectMgr::LoadGameObjectForQuests()
 void ObjectMgr::LoadSkillLineAbility()
 {
     // Getting the maximum ID.
-    std::unique_ptr<QueryResult> result(WorldDatabase.Query("SELECT MAX(`id`) FROM `skill_line_ability`"));
+    std::unique_ptr<QueryResult> result(WorldDatabase.PQuery("SELECT MAX(`id`) FROM `skill_line_ability` WHERE `build`=%u", SUPPORTED_CLIENT_BUILD));
 
     if (!result)
     {
@@ -8376,8 +8376,8 @@ void ObjectMgr::LoadSkillLineAbility()
     auto fields = result->Fetch();
     uint32 maxSkillLineAbilityId = fields[0].GetUInt32() + 1;
 
-    // Actually loading the sounds.
-    result.reset(WorldDatabase.Query("SELECT * FROM skill_line_ability"));
+    // Actually loading the skills.
+    result.reset(WorldDatabase.PQuery("SELECT * FROM `skill_line_ability` WHERE `build`=%u", SUPPORTED_CLIENT_BUILD));
 
     if (!result)
     {
diff --git a/src/game/Spells/SpellMgr.cpp b/src/game/Spells/SpellMgr.cpp
index 60ce9a3c7..2e53f33c4 100644
--- a/src/game/Spells/SpellMgr.cpp
+++ b/src/game/Spells/SpellMgr.cpp
@@ -4310,7 +4310,7 @@ void SpellMgr::LoadExistingSpellIds()
     mExistingSpellsSet.clear();
 
     Field* fields;
-    QueryResult* result = WorldDatabase.Query("SELECT DISTINCT ID FROM spell_template");
+    QueryResult* result = WorldDatabase.Query("SELECT DISTINCT `entry` FROM `spell_template`");
 
     if (result)
     {
@@ -4692,7 +4692,7 @@ void SpellMgr::LoadSpells()
     uint32 oldMSTime = WorldTimer::getMSTime();
 
     // Getting the maximum ID.
-    std::unique_ptr<QueryResult> result(WorldDatabase.Query("SELECT MAX(`ID`) FROM `spell_template`"));
+    std::unique_ptr<QueryResult> result(WorldDatabase.Query("SELECT MAX(`entry`) FROM `spell_template`"));
 
     if (!result)
     {
@@ -4707,7 +4707,7 @@ void SpellMgr::LoadSpells()
     uint32 maxEntry = fields[0].GetUInt32() + 1;
 
     // Actually loading the spells.
-    result.reset(WorldDatabase.PQuery("SELECT * FROM `spell_template` WHERE `build`=%u", SUPPORTED_CLIENT_BUILD));
+    result.reset(WorldDatabase.PQuery("SELECT * FROM `spell_template` t1 WHERE `build`=(SELECT max(`build`) FROM `spell_template` t2 WHERE t1.`entry`=t2.`entry` && `build` <= %u)", SUPPORTED_CLIENT_BUILD));
 
     if (!result)
     {