diff --git a/src/engine/server/databases/connection_pool.cpp b/src/engine/server/databases/connection_pool.cpp
index 2d8f607d9..a7056e76c 100644
--- a/src/engine/server/databases/connection_pool.cpp
+++ b/src/engine/server/databases/connection_pool.cpp
@@ -1,5 +1,6 @@
 #include "connection_pool.h"
 #include "connection.h"
+#include <engine/shared/config.h>
 
 #include <base/system.h>
 #include <cstring>
@@ -186,11 +187,13 @@ void CDbConnectionPool::OnShutdown()
 class CBackup
 {
 public:
-	CBackup(std::shared_ptr<CDbConnectionPool::CSharedData> pShared) :
-		m_pShared(std::move(pShared)) {}
+	CBackup(std::shared_ptr<CDbConnectionPool::CSharedData> pShared, int DebugSql) :
+		m_DebugSql(DebugSql), m_pShared(std::move(pShared)) {}
 	static void Start(void *pUser);
 
 private:
+	bool m_DebugSql;
+
 	void ProcessQueries();
 
 	std::unique_ptr<IDbConnection> m_pWriteBackup;
@@ -228,7 +231,8 @@ void CBackup::ProcessQueries()
 		else if(pThreadData->m_Mode == CSqlExecData::WRITE_ACCESS && m_pWriteBackup.get())
 		{
 			bool Success = CDbConnectionPool::ExecSqlFunc(m_pWriteBackup.get(), pThreadData, Write::BACKUP_FIRST);
-			dbg_msg("sql", "[%i] %s done on write backup database, Success=%i", JobNum, pThreadData->m_pName, Success);
+			if(m_DebugSql || !Success)
+				dbg_msg("sql", "[%i] %s done on write backup database, Success=%i", JobNum, pThreadData->m_pName, Success);
 		}
 		m_pShared->m_NumWorker.Signal();
 	}
@@ -241,14 +245,16 @@ void CBackup::ProcessQueries()
 class CWorker
 {
 public:
-	CWorker(std::shared_ptr<CDbConnectionPool::CSharedData> pShared) :
-		m_pShared(std::move(pShared)) {}
+	CWorker(std::shared_ptr<CDbConnectionPool::CSharedData> pShared, int DebugSql) :
+		m_DebugSql(DebugSql), m_pShared(std::move(pShared)) {}
 	static void Start(void *pUser);
 	void ProcessQueries();
 
 private:
 	void Print(IConsole *pConsole, CDbConnectionPool::Mode DatabaseMode);
 
+	bool m_DebugSql;
+
 	// There are two possible configurations
 	//  * sqlite mode: There exists exactly one READ and the same WRITE server
 	//                 with no WRITE_BACKUP server
@@ -314,7 +320,8 @@ void CWorker::ProcessQueries()
 				if(CDbConnectionPool::ExecSqlFunc(m_vpReadConnections[CurServer].get(), pThreadData.get(), Write::NORMAL))
 				{
 					ReadServer = CurServer;
-					dbg_msg("sql", "[%i] %s done on read database %d", JobNum, pThreadData->m_pName, CurServer);
+					if(m_DebugSql)
+						dbg_msg("sql", "[%i] %s done on read database %d", JobNum, pThreadData->m_pName, CurServer);
 					Success = true;
 					break;
 				}
@@ -337,7 +344,8 @@ void CWorker::ProcessQueries()
 			}
 			else if(CDbConnectionPool::ExecSqlFunc(m_pWriteConnection.get(), pThreadData.get(), Write::NORMAL))
 			{
-				dbg_msg("sql", "[%i] %s done on write database", JobNum, pThreadData->m_pName);
+				if(m_DebugSql)
+					dbg_msg("sql", "[%i] %s done on write database", JobNum, pThreadData->m_pName);
 				Success = true;
 			}
 			// enter fail mode if not successful
@@ -345,7 +353,8 @@ void CWorker::ProcessQueries()
 			const Write w = Success ? Write::NORMAL_SUCCEEDED : Write::NORMAL_FAILED;
 			if(m_pWriteBackup && CDbConnectionPool::ExecSqlFunc(m_pWriteBackup.get(), pThreadData.get(), w))
 			{
-				dbg_msg("sql", "[%i] %s done move write on backup database to non-backup table", JobNum, pThreadData->m_pName);
+				if(m_DebugSql)
+					dbg_msg("sql", "[%i] %s done move write on backup database to non-backup table", JobNum, pThreadData->m_pName);
 				Success = true;
 			}
 		}
@@ -467,8 +476,8 @@ bool CDbConnectionPool::ExecSqlFunc(IDbConnection *pConnection, CSqlExecData *pD
 CDbConnectionPool::CDbConnectionPool()
 {
 	m_pShared = std::make_shared<CSharedData>();
-	m_pWorkerThread = thread_init(CWorker::Start, new CWorker(m_pShared), "database worker thread");
-	m_pBackupThread = thread_init(CBackup::Start, new CBackup(m_pShared), "database backup worker thread");
+	m_pWorkerThread = thread_init(CWorker::Start, new CWorker(m_pShared, g_Config.m_DbgSql), "database worker thread");
+	m_pBackupThread = thread_init(CBackup::Start, new CBackup(m_pShared, g_Config.m_DbgSql), "database backup worker thread");
 }
 
 CDbConnectionPool::~CDbConnectionPool()
diff --git a/src/engine/shared/config_variables.h b/src/engine/shared/config_variables.h
index f41e2dfd5..355a4458a 100644
--- a/src/engine/shared/config_variables.h
+++ b/src/engine/shared/config_variables.h
@@ -465,6 +465,7 @@ MACRO_CONFIG_INT(EcAuthTimeout, ec_auth_timeout, 30, 1, 120, CFGFLAG_ECON, "Time
 MACRO_CONFIG_INT(EcOutputLevel, ec_output_level, 0, -3, 2, CFGFLAG_ECON, "Adjusts the amount of information in the external console (-3 = none, -2 = error only, -1 = warn, 0 = info, 1 = debug, 2 = trace)")
 
 MACRO_CONFIG_INT(Debug, debug, 0, 0, 1, CFGFLAG_CLIENT | CFGFLAG_SERVER, "Debug mode")
+MACRO_CONFIG_INT(DbgSql, dbg_sql, 1, 0, 1, CFGFLAG_SERVER, "Debug SQL")
 MACRO_CONFIG_INT(DbgCurl, dbg_curl, 0, 0, 1, CFGFLAG_CLIENT | CFGFLAG_SERVER, "Debug curl")
 MACRO_CONFIG_INT(DbgGraphs, dbg_graphs, 0, 0, 1, CFGFLAG_CLIENT, "Performance graphs")
 MACRO_CONFIG_INT(DbgGfx, dbg_gfx, 0, 0, 4, CFGFLAG_CLIENT, "Show graphic library warnings and errors, if the GPU supports it (0: none, 1: minimal, 2: affects performance, 3: verbose, 4: all)")