diff --git a/source/dnode/vnode/meta/src/metaBDBImpl.c b/source/dnode/vnode/meta/src/metaBDBImpl.c
index 76c779fe2cdcace6b0fc49c5b1b143a51fd042bf..0565859688a0ed21f6041772913ec079e2a4d2b8 100644
--- a/source/dnode/vnode/meta/src/metaBDBImpl.c
+++ b/source/dnode/vnode/meta/src/metaBDBImpl.c
@@ -18,7 +18,9 @@
 #include "db.h"
 
 struct SMetaDB {
-  DB *    pDB;
+  DB *    pStbDB;
+  DB *    pCtbDB;
+  DB *    pNtbDB;
   DB *    pIdx;
   DB_ENV *pEvn;
 };
@@ -32,22 +34,32 @@ int metaOpenDB(SMeta *pMeta) {
     return -1;
   }
 
-  // TODO: create the env
+  // create the env
   ret = db_env_create(&(pMeta->pDB->pEvn), 0);
   if (ret != 0) {
     // TODO: handle error
     return -1;
   }
 
-  // pMeta->pDB->pEvn->set_cachesize(pMeta->pDB->pEvn, )
-
   ret = pMeta->pDB->pEvn->open(pMeta->pDB->pEvn, pMeta->path, DB_CREATE | DB_INIT_MPOOL, 0);
   if (ret != 0) {
     // TODO: handle error
     return -1;
   }
 
-  ret = db_create(&(pMeta->pDB->pDB), pMeta->pDB->pEvn, 0);
+  ret = db_create(&(pMeta->pDB->pStbDB), pMeta->pDB->pEvn, 0);
+  if (ret != 0) {
+    // TODO: handle error
+    return -1;
+  }
+
+  ret = db_create(&(pMeta->pDB->pCtbDB), pMeta->pDB->pEvn, 0);
+  if (ret != 0) {
+    // TODO: handle error
+    return -1;
+  }
+
+  ret = db_create(&(pMeta->pDB->pNtbDB), pMeta->pDB->pEvn, 0);
   if (ret != 0) {
     // TODO: handle error
     return -1;
@@ -59,13 +71,37 @@ int metaOpenDB(SMeta *pMeta) {
     return -1;
   }
 
-  ret = pMeta->pDB->pDB->open(pMeta->pDB->pDB, /* DB structure pointer */
-                              NULL,            /* Transaction pointer */
-                              "meta.db",       /* On-disk file that holds the database */
-                              NULL,            /* Optional logical database name */
-                              DB_BTREE,        /* Database access method */
-                              DB_CREATE,       /* Open flags */
-                              0);              /* File mode */
+  ret = pMeta->pDB->pStbDB->open(pMeta->pDB->pStbDB, /* DB structure pointer */
+                                 NULL,               /* Transaction pointer */
+                                 "meta.db",          /* On-disk file that holds the database */
+                                 NULL,               /* Optional logical database name */
+                                 DB_BTREE,           /* Database access method */
+                                 DB_CREATE,          /* Open flags */
+                                 0);                 /* File mode */
+  if (ret != 0) {
+    // TODO: handle error
+    return -1;
+  }
+
+  ret = pMeta->pDB->pCtbDB->open(pMeta->pDB->pCtbDB, /* DB structure pointer */
+                                 NULL,               /* Transaction pointer */
+                                 "meta.db",          /* On-disk file that holds the database */
+                                 NULL,               /* Optional logical database name */
+                                 DB_BTREE,           /* Database access method */
+                                 DB_CREATE,          /* Open flags */
+                                 0);                 /* File mode */
+  if (ret != 0) {
+    // TODO: handle error
+    return -1;
+  }
+
+  ret = pMeta->pDB->pNtbDB->open(pMeta->pDB->pNtbDB, /* DB structure pointer */
+                                 NULL,               /* Transaction pointer */
+                                 "meta.db",          /* On-disk file that holds the database */
+                                 NULL,               /* Optional logical database name */
+                                 DB_BTREE,           /* Database access method */
+                                 DB_CREATE,          /* Open flags */
+                                 0);                 /* File mode */
   if (ret != 0) {
     // TODO: handle error
     return -1;
@@ -94,9 +130,19 @@ void metaCloseDB(SMeta *pMeta) {
       pMeta->pDB->pIdx = NULL;
     }
 
-    if (pMeta->pDB->pDB) {
-      pMeta->pDB->pDB->close(pMeta->pDB->pDB, 0);
-      pMeta->pDB->pDB = NULL;
+    if (pMeta->pDB->pNtbDB) {
+      pMeta->pDB->pNtbDB->close(pMeta->pDB->pNtbDB, 0);
+      pMeta->pDB->pNtbDB = NULL;
+    }
+
+    if (pMeta->pDB->pCtbDB) {
+      pMeta->pDB->pCtbDB->close(pMeta->pDB->pCtbDB, 0);
+      pMeta->pDB->pCtbDB = NULL;
+    }
+
+    if (pMeta->pDB->pStbDB) {
+      pMeta->pDB->pStbDB->close(pMeta->pDB->pStbDB, 0);
+      pMeta->pDB->pStbDB = NULL;
     }
 
     if (pMeta->pDB->pEvn) {
@@ -109,7 +155,28 @@ void metaCloseDB(SMeta *pMeta) {
 }
 
 int metaSaveTableToDB(SMeta *pMeta, const STbCfg *pTbCfg) {
-  // TODO
+  tb_uid_t uid;
+  DBT      key = {0};
+  DBT      value = {0};
+  char     buf[256];
+  void *   pBuf;
+  int      bsize;
+
+  if (pTbCfg->type == META_SUPER_TABLE) {
+    uid = pTbCfg->stbCfg.suid;
+  } else {
+    uid = metaGenerateUid(pMeta);
+  }
+
+  key.size = sizeof(uid);
+  key.data = &uid;
+
+  pBuf = buf;
+  value.size = metaEncodeTbCfg(&pBuf, pTbCfg);
+  value.data = buf;
+
+  pMeta->pDB->pStbDB->put(pMeta->pDB->pStbDB, NULL, &key, &value, 0);
+
   return 0;
 }