SQL scheduler with Google Docs and Apps Script
SQL scheduler with Google Docs and Apps Script
Embedded Files
Creating a scheduling application for ClickHouse using Google Docs and Apps Script involves several steps. In this example, we'll create a simple application that allows you to schedule ClickHouse queries to run at specific times and store the results in Google Sheets. Here's a step-by-step guide
Remember that this is a simplified example, and you'll need to adapt it to your specific ClickHouse setup and requirements. Additionally, ensure that you handle errors and edge cases gracefully in your Apps Script code and ClickHouse interaction logic.
You can adapt the example I provided for scheduling queries to run against databases like MySQL, PostgreSQL, or other databases. The general approach remains the same, but you will need to adjust the database-specific interaction code within your Google Apps Script.
Usecase exemple
Usecase exemple
We have a two table. Second one is updating by running SQL script which contains first table as a source. Imagine we need to update it regular , every day
Step by step instruction
Step by step instruction
Step 1 Create new googledocs file
Step 2 Insert sql script and find the Apps Script extension menu
Step 3 Write a Google Apps Script code similar to the example I provided bellow.
function main() {
let queryText = getDocText()
runQuery(queryText)
}
function getDocText() {
return DocumentApp
.openById('id_doc')
.getBody()
.editAsText()
.getText()
}
function runQuery(queryText) {
const options = {
'method' : 'post',
'contentType': 'text/html',
'headers': {
'X-ClickHouse-User': 'user',
'X-ClickHouse-Key': 'user'
},
// Convert the JavaScript object to a JSON string.
'payload' : queryText
};
let response = UrlFetchApp.fetch('db_url', options);
Logger.log(response)
return response
}
Step 4 Set up trigger for run the JS code scheduled by time
Step 5 Bonus. Google Docs allows to control versions of SQL scripts. It could important in case team working on that code
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