From f0a7fa0c5987303b5e7f59ffd4f8de49d255d5b3 Mon Sep 17 00:00:00 2001
From: Jay Wen <jay.wen@client.com.au>
Date: Fri, 12 Nov 2021 14:16:35 +0800
Subject: [PATCH] execute simple sql encapsulate as an function

---
 tests/examples/nodejs/node-example-raw.js | 44 +++++++++--------------
 1 file changed, 16 insertions(+), 28 deletions(-)

diff --git a/tests/examples/nodejs/node-example-raw.js b/tests/examples/nodejs/node-example-raw.js
index 058a50c4c3..80d5cd1bde 100644
--- a/tests/examples/nodejs/node-example-raw.js
+++ b/tests/examples/nodejs/node-example-raw.js
@@ -23,43 +23,31 @@ var conn = taos.connect({host:"127.0.0.1", user:"root", password:"taosdata", con
 // Initialize our TDengineCursor, which we use to interact with TDengine
 var c1 = conn.cursor();
 
+//execute the sql
+function execute(sql){
+  try {
+    c1.execute(sql);
+  }
+  catch(err) {
+    conn.close();
+    throw err;
+  }
+}
+
 // c1.execute(query) will execute the query
 // Let's create a database named db
-try {
-  c1.execute('create database if not exists db;');
-}
-catch(err) {
-  conn.close();
-  throw err;
-}
+execute('create database if not exists db;')
 
 // Now we will use database db
-try {
-  c1.execute('use db;');
-}
-catch (err) {
-  conn.close();
-  throw err;
-}
+execute('use db;')
+
 
 // Let's create a table called weather
 // which stores some weather data like humidity, AQI (air quality index), temperature, and some notes as text
-try {
-  c1.execute('create table if not exists weather (ts timestamp, humidity smallint, aqi int, temperature float, notes binary(30));');
-}
-catch (err) {
-  conn.close();
-  throw err;
-}
+execute('create table if not exists weather (ts timestamp, humidity smallint, aqi int, temperature float, notes binary(30));');
 
 // Let's get the description of the table weather
-try {
-  c1.execute('describe db.weather');
-}
-catch (err) {
-  conn.close();
-  throw err;
-}
+execute('describe db.weather');
 
 // To get results, we run the function c1.fetchall()
 // It only returns the query results as an array of result rows, but also stores the latest results in c1.data
-- 
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