How do I run multiple queries in node JS?

How do I use multiple queries in node JS?

Multiple statement queries

  1. var mysql = require(‘mysql’);
  2. multipleStatements: true.
  3. });
  4. connect();
  5. var sql = “SELECT * FROM trn_employee WHERE employee_id = ?;SELECT * FROM trn_person WHERE person_id = ?”;
  6. connection. query(sql, [2, 1], function(error, results, fields) {
  7. if (error) {
  8. throw error;

Can you run multiple queries at once?

Simply put three queries one after the other in a . sql file, with semi-colons after each statement, then execute it as a script (either on a SQL*Plus prompt using @scriptname. sql or in TOAD/SQL Developer [or equivalent] using its script execution function).

How can I run multiple mysql queries at the same time?

You must execute both queries separately using prepared statements. If you do not intend to bind any data to your SQL then you can reduce it by one line and use mysqli::query() instead. If both queries depend on each other then you can wrap them in a transaction (assuming that your table engine supports transactions).

How do I run a query in node JS?

So, now I can execute queries like: db. query(‘select id, firstname, lastname from mytable’, function(err, result, fields){ if (err) { throw err; } else { console. log(‘Selected people:’); for (var i in result) { var people = result[i]; console.

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How do you run multiple queries?

To run a query with multiple statements, ensure that each statement is separated by a semicolon; then set the DSQEC_RUN_MQ global variable to 1 and run the query. When the variable is set to zero, all statements after the first semicolon are ignored.

How do you run two statements in a snowflake?

The Snowflake stored procedure below will:

  1. Accept a string parameter that is a SQL statement designed to generate rows of SQL statements to execute.
  2. Execute the input SQL statement to generate a list of SQL statements to run.
  3. Run all statements identified by the “SQL_COMMAND” column one at a time.

How do I run multiple queries in pgAdmin?

If you’re using pgAdmin 4, you just type everything on the Query Tool pane, and then press the button with a [lightning bolt] (or press F5).

How do I run two SQL queries?

In this step, you create the union query by copying and pasting the SQL statements.

  1. On the Create tab, in the Queries group, click Query Design.
  2. On the Design tab, in the Query group, click Union. …
  3. Click the tab for the first select query that you want to combine in the union query.

How do I run a query in MySQL?

You can execute a MySQL query towards a given database by opening the database with phpMyAdmin and then clicking on the SQL tab. A new page will load, where you can provide the desired query. When ready click on Go to perform the execution. The page will refresh and you will see the results from the query you provided.

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Can I run multiple queries in MySQL workbench?

How to run Multiple SQL Queries in MySQL Workbench explains how you can run multiple statements in single query window by separating them with semicolon ; You can have different types of statements such as delete, update or insert in single query window and all can be executed with single click.

What is node js used for?

It is used for server-side programming, and primarily deployed for non-blocking, event-driven servers, such as traditional web sites and back-end API services, but was originally designed with real-time, push-based architectures in mind. Every browser has its own version of a JS engine, and node.

Which database is best for Node js?

Choosing the best SQL database for Node. js

Criteria MySQL PostgreSQL
Popularity The most popular The second most popular

Can I use node js with MySQL?

Once you have MySQL up and running on your computer, you can access it by using Node. js. To access a MySQL database with Node. js, you need a MySQL driver.

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