diff --git a/src/main/java/com/genersoft/iot/vmp/jt1078/proc/request/J0200.java b/src/main/java/com/genersoft/iot/vmp/jt1078/proc/request/J0200.java
index e783f9d4a..8534befef 100644
--- a/src/main/java/com/genersoft/iot/vmp/jt1078/proc/request/J0200.java
+++ b/src/main/java/com/genersoft/iot/vmp/jt1078/proc/request/J0200.java
@@ -25,7 +25,9 @@ public class J0200 extends Re {
     @Override
     protected Rs decode0(ByteBuf buf, Header header, Session session) {
         positionInfo = JTPositionBaseInfo.decode(buf);
-        log.debug("[JT-位置汇报]: phoneNumber={}  {}", header.getPhoneNumber(), positionInfo.toSimpleString());
+        if (log.isDebugEnabled()) {
+            log.debug("[JT-位置汇报]: phoneNumber={}  {}", header.getPhoneNumber(), positionInfo.toSimpleString());
+        }
         // 读取附加信息
 //        JTPositionAdditionalInfo positionAdditionalInfo = new JTPositionAdditionalInfo();
 //        Map<Integer, byte[]> additionalMsg = new HashMap<>();
diff --git a/数据库/2.7.4/更新-mysql-2.7.4.sql b/数据库/2.7.4/更新-mysql-2.7.4.sql
index 7b80a5f92..645c97021 100644
--- a/数据库/2.7.4/更新-mysql-2.7.4.sql
+++ b/数据库/2.7.4/更新-mysql-2.7.4.sql
@@ -1,4 +1,3 @@
-drop table IF EXISTS wvp_jt_terminal;
 create table IF NOT EXISTS wvp_jt_terminal (
                                  id serial primary key,
                                  phone_number character varying(50),
@@ -23,7 +22,6 @@ create table IF NOT EXISTS wvp_jt_terminal (
                                  constraint uk_jt_device_id_device_id unique (id, phone_number)
 );
 
-drop table IF EXISTS wvp_jt_channel;
 create table IF NOT EXISTS wvp_jt_channel (
                                id serial primary key,
                                terminal_db_id integer,
@@ -141,8 +139,6 @@ call wvp_202601025();
 DROP PROCEDURE wvp_202601025;
 DELIMITER ;
 
-
-drop table IF EXISTS wvp_alarm;
 create table IF NOT EXISTS wvp_alarm (
     id serial primary key COMMENT '主键ID',
     channel_id integer COMMENT '关联通道的数据库id',
diff --git a/数据库/2.7.4/更新-postgresql-kingbase-2.7.4.sql b/数据库/2.7.4/更新-postgresql-kingbase-2.7.4.sql
index 9e4f80878..0ab03ae64 100644
--- a/数据库/2.7.4/更新-postgresql-kingbase-2.7.4.sql
+++ b/数据库/2.7.4/更新-postgresql-kingbase-2.7.4.sql
@@ -1,4 +1,3 @@
-drop table IF EXISTS wvp_jt_terminal;
 create table IF NOT EXISTS wvp_jt_terminal (
                                  id serial primary key,
                                  phone_number character varying(50),
@@ -22,7 +21,6 @@ create table IF NOT EXISTS wvp_jt_terminal (
                                  sdp_ip character varying(50),
                                  constraint uk_jt_device_id_device_id unique (id, phone_number)
 );
-drop table IF EXISTS wvp_jt_channel;
 create table IF NOT EXISTS wvp_jt_channel (
                                 id serial primary key,
                                 terminal_db_id integer,
@@ -48,7 +46,6 @@ drop index uk_media_server_unique_ip_http_port on wvp_media_server;
 ALTER table wvp_device DROP COLUMN IF EXISTS register_time;
 ALTER table wvp_device DROP COLUMN IF EXISTS keepalive_time;
 
-drop table IF EXISTS wvp_alarm;
 create table IF NOT EXISTS wvp_alarm (
     id serial primary key,
     channel_id integer,