diff --git a/src/connector/odbc/src/install.sh b/src/connector/odbc/src/install.sh
index b8c04677c7199384f7bc0b66515eb04d0fe560fc..6f45ce43573324511bfc6f729dd64ada5cb0918d 100755
--- a/src/connector/odbc/src/install.sh
+++ b/src/connector/odbc/src/install.sh
@@ -19,6 +19,7 @@ Description=Connection to TAOS
 Driver=TAOS
 EOF
 
+# better remove first ?
 sudo odbcinst -i -d -f "${BLD_DIR}/template.ini" &&
 odbcinst -i -s -f "${BLD_DIR}/template.dsn" &&
 echo "odbc install done"
diff --git a/src/connector/odbc/tests/create_data.stmts b/src/connector/odbc/tests/create_data.stmts
new file mode 100644
index 0000000000000000000000000000000000000000..549cb583d8322906b4bdaffafde8eb510cb91c90
--- /dev/null
+++ b/src/connector/odbc/tests/create_data.stmts
@@ -0,0 +1,12 @@
+P:drop database if exists m;
+P:create database m;
+P:use m;
+
+P:drop table if exists t;
+P:create table t (ts timestamp, b bool, v1 tinyint, v2 smallint, v4 int, v8 bigint, f4 float, f8 double, blob binary(3), name nchar(1));
+P:insert into t (ts, blob, name) values('2020-10-10 00:00:00',     0,      1);
+P:insert into t (ts, blob, name) values('2020-10-10 00:00:00.001', 1,      2);
+P:insert into t (ts, blob, name) values('2020-10-10 00:00:00.002', '你',   '好');
+P:insert into t (ts, blob, name) values('2020-10-10 00:00:00.003', 'abc',  'd');
+P:select * from t;
+
diff --git a/src/connector/odbc/tests/query_data.stmts b/src/connector/odbc/tests/query_data.stmts
new file mode 100644
index 0000000000000000000000000000000000000000..b0e9ea27ea81f53780ebf3bced8e8a5f63bf7e2b
--- /dev/null
+++ b/src/connector/odbc/tests/query_data.stmts
@@ -0,0 +1 @@
+P:select * from m.t;