diff --git a/source/libs/tdb/src/db/tdbBtree.c b/source/libs/tdb/src/db/tdbBtree.c
index 65b79ea588..2c6cbfa91d 100644
--- a/source/libs/tdb/src/db/tdbBtree.c
+++ b/source/libs/tdb/src/db/tdbBtree.c
@@ -15,8 +15,6 @@
 
 #include "tdbInt.h"
 
-#define BTREE_MAX_DEPTH 20
-
 struct SBTree {
   SPgno          root;
   int            keyLen;
@@ -36,20 +34,10 @@ typedef struct SPgHdr {
   SPgno rightChild;
 } SPgHdr;
 
-typedef struct SBtPage {
+struct SBtPage {
   SPgHdr *pHdr;
   u16 *   aCellIdx;
   u8 *    aData;
-} SBtPage;
-
-struct SBtCursor {
-  SBTree * pBt;
-  i8       iPage;
-  SBtPage *pPage;
-  u16      idx;
-  u16      idxStack[BTREE_MAX_DEPTH + 1];
-  SBtPage *pgStack[BTREE_MAX_DEPTH + 1];
-  void *   pBuf;
 };
 
 typedef struct SFreeCell {
diff --git a/source/libs/tdb/src/db/tdbDb.c b/source/libs/tdb/src/db/tdbDb.c
index 3532379433..43dc8a2f81 100644
--- a/source/libs/tdb/src/db/tdbDb.c
+++ b/source/libs/tdb/src/db/tdbDb.c
@@ -75,6 +75,20 @@ int tdbDbDrop(STDb *pDb) {
 }
 
 int tdbDbInsert(STDb *pDb, const void *pKey, int keyLen, const void *pVal, int valLen) {
-  // TODO
+  SBtCursor btc;
+  SBtCursor *pCur;
+  int ret;
+
+  pCur = &btc;
+  ret = tdbBtreeCursor(pCur, pDb->pBt);
+  if (ret < 0) {
+    return -1;
+  }
+
+  ret = tdbBtCursorInsert(pCur, pKey, keyLen, pVal, valLen);
+  if (ret < 0) {
+    return -1;
+  }
+
   return 0;
 }
\ No newline at end of file
diff --git a/source/libs/tdb/src/inc/tdbBtree.h b/source/libs/tdb/src/inc/tdbBtree.h
index 745a336e89..d101bb5e94 100644
--- a/source/libs/tdb/src/inc/tdbBtree.h
+++ b/source/libs/tdb/src/inc/tdbBtree.h
@@ -22,9 +22,21 @@ extern "C" {
 
 typedef struct SBTree    SBTree;
 typedef struct SBtCursor SBtCursor;
+typedef struct SBtPage SBtPage;
+
+struct SBtCursor {
+  SBTree * pBt;
+  i8       iPage;
+  SBtPage *pPage;
+  u16      idx;
+  u16      idxStack[BTREE_MAX_DEPTH + 1];
+  SBtPage *pgStack[BTREE_MAX_DEPTH + 1];
+  void *   pBuf;
+};
 
 int tdbBtreeOpen(SPgno rtPgno, int keyLen, int valLen, SPFile *pFile, FKeyComparator kcmpr, SBTree **ppBt);
 int tdbBtreeClose(SBTree *pBt);
+int tdbBtreeCursor(SBtCursor *pCur, SBTree *pBt);
 int tdbBtCursorInsert(SBtCursor *pCur, const void *pKey, int kLen, const void *pVal, int vLen);
 
 #ifdef __cplusplus
diff --git a/source/libs/tdb/src/inc/tdbInt.h b/source/libs/tdb/src/inc/tdbInt.h
index 1e66e6ca40..3d7b4db389 100644
--- a/source/libs/tdb/src/inc/tdbInt.h
+++ b/source/libs/tdb/src/inc/tdbInt.h
@@ -129,6 +129,8 @@ typedef int (*FKeyComparator)(const void *pKey1, int kLen1, const void *pKey2, i
 
 #define TDB_DEFAULT_FANOUT 6
 
+#define BTREE_MAX_DEPTH 20
+
 #include "tdbUtil.h"
 
 #include "tdbPCache.h"
diff --git a/source/libs/tdb/test/tdbTest.cpp b/source/libs/tdb/test/tdbTest.cpp
index 952233a683..eb4f2a6cc0 100644
--- a/source/libs/tdb/test/tdbTest.cpp
+++ b/source/libs/tdb/test/tdbTest.cpp
@@ -16,13 +16,11 @@ TEST(tdb_test, simple_test) {
   GTEST_ASSERT_EQ(ret, 0);
 
   // // Insert some data
-  // ret = tdbDbInsert(pDb, "1", 1, "world", 5);
-  // GTEST_ASSERT_EQ(ret, 0);
+  ret = tdbDbInsert(pDb, "1", 1, "world", 5);
+  GTEST_ASSERT_EQ(ret, 0);
 
   ret = tdbDbDrop(pDb);
-  if (pDb == NULL) {
-    return -1;
-  }
+  GTEST_ASSERT_EQ(ret, 0);
 
   // Close a database
   tdbDbClose(pDb);