diff --git a/src/db/rdb/sqlite/files.go b/src/db/rdb/sqlite/files.go
index 88ec81b..7b0ae2c 100644
--- a/src/db/rdb/sqlite/files.go
+++ b/src/db/rdb/sqlite/files.go
@@ -12,17 +12,6 @@ import (
 	"github.com/ihexxa/quickshare/src/db"
 )
 
-const (
-	InitNs       = "Init"
-	InitTimeKey  = "initTime"
-	SchemaVerKey = "SchemaVersion"
-	SchemaV1     = "v1"
-)
-
-var (
-	maxHashingTime = 10
-)
-
 func (st *SQLiteStore) getFileInfo(ctx context.Context, itemPath string) (*db.FileInfo, error) {
 	var infoStr string
 	fInfo := &db.FileInfo{}
diff --git a/src/db/rdb/sqlite/files_sharings.go b/src/db/rdb/sqlite/files_sharings.go
index ecf30d7..e40c246 100644
--- a/src/db/rdb/sqlite/files_sharings.go
+++ b/src/db/rdb/sqlite/files_sharings.go
@@ -154,7 +154,7 @@ func (st *SQLiteStore) ListSharingsByLocation(ctx context.Context, location stri
 		ctx,
 		`select path, share_id
 		from t_file_info
-		where location=? and share_id<>''`,
+		where share_id<>'' and location=?`,
 		location,
 	)
 	if err != nil {
diff --git a/src/db/rdb/sqlite/files_uploadings.go b/src/db/rdb/sqlite/files_uploadings.go
index 9439365..86d38fb 100644
--- a/src/db/rdb/sqlite/files_uploadings.go
+++ b/src/db/rdb/sqlite/files_uploadings.go
@@ -137,8 +137,8 @@ func (st *SQLiteStore) getUploadInfo(ctx context.Context, userId uint64, filePat
 		ctx,
 		`select size, uploaded
 		from t_file_uploading
-		where user=? and real_path=?`,
-		userId, filePath,
+		where real_path=? and user=?`,
+		filePath, userId,
 	).Scan(&size, &uploaded)
 	if err != nil {
 		return "", 0, 0, err
diff --git a/src/db/rdb/sqlite/sqlite.go b/src/db/rdb/sqlite/sqlite.go
index 88541df..bdfd045 100644
--- a/src/db/rdb/sqlite/sqlite.go
+++ b/src/db/rdb/sqlite/sqlite.go
@@ -76,7 +76,7 @@ func (st *SQLiteStore) InitUserTable(ctx context.Context, rootName, rootPwd stri
 		ctx,
 		`create table if not exists t_user (
 			id bigint not null,
-			name varchar not null,
+			name varchar not null unique,
 			pwd varchar not null,
 			role integer not null,
 			used_space bigint not null,
@@ -89,6 +89,14 @@ func (st *SQLiteStore) InitUserTable(ctx context.Context, rootName, rootPwd stri
 		return err
 	}
 
+	_, err = st.db.ExecContext(
+		ctx,
+		`create index i_user_name on t_user (name)`,
+	)
+	if err != nil {
+		return err
+	}
+
 	admin := &db.User{
 		ID:   0,
 		Name: rootName,
@@ -143,17 +151,41 @@ func (st *SQLiteStore) InitFileTables(ctx context.Context) error {
 		return err
 	}
 
+	_, err = st.db.ExecContext(
+		ctx,
+		`create index t_file_share on t_file_info (share_id, location)`,
+	)
+	if err != nil {
+		return err
+	}
+
 	_, err = st.db.ExecContext(
 		ctx,
 		`create table if not exists t_file_uploading (
 			real_path varchar not null,
-			tmp_path varchar not null,
+			tmp_path varchar not null unique,
 			user bigint not null,
 			size bigint not null,
 			uploaded bigint not null,
 			primary key(real_path)
 		)`,
 	)
+	if err != nil {
+		return err
+	}
+
+	_, err = st.db.ExecContext(
+		ctx,
+		`create index t_file_uploading_path on t_file_uploading (real_path, user)`,
+	)
+	if err != nil {
+		return err
+	}
+
+	_, err = st.db.ExecContext(
+		ctx,
+		`create index t_file_uploading_user on t_file_uploading (user)`,
+	)
 	return err
 }