https://github.com/hkaraoglu/db-query-builder

NodeJS Express framework mysql query builder and executor library. Inspired by laravel framework
https://github.com/hkaraoglu/db-query-builder

Last synced: about 2 months ago
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NodeJS Express framework mysql query builder and executor library. Inspired by laravel framework

• Host: GitHub
• URL: https://github.com/hkaraoglu/db-query-builder
• Owner: hkaraoglu
• License: mit
• Created: 2019-07-20T11:27:28.000Z (almost 6 years ago)
• Default Branch: master
• Last Pushed: 2019-07-29T21:59:21.000Z (almost 6 years ago)
• Last Synced: 2025-03-14T01:47:15.024Z (2 months ago)
• Language: JavaScript
• Homepage: https://www.npmjs.com/package/db-query-builder
• Size: 10.7 KB
• Stars: 0
• Watchers: 0
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: readme.md
  • License: License

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README

        

# **db-query-builder**

NodeJS Express framework mysql query builder and executor library. Inspired by PHP Laravel Framework.

**Initialize:**

    var QueryBuilder = require('db-query-builder');  

    var db = new QueryBuilder(table, mysqlConnection));

    // mysqlConnection: Your mysql connection instance 

    // your primary table name to use after from

	

	

**SELECT:**		

   

   If you call select function **without arguments,** it selects **all columns** as default.

    var db = new QueryBuilder("address AS a", mysqlConnection));

    db.select()

      .where("address_id", "=", 1)

      .where("customer_id", "=", 134)

    

 If you want to select **specific** columns then:

	db.select(["address_id", "firstname", "lastname", "zipCode"])

      .where("address_id", "=", 1)

      .where("customer_id", "=", 134)

   **UPDATE:**

	   

If you want to update columns on a table then:

     db.where("customer_id", "=", 134)

       .update({"firstname" : "Hasan", "lastname" : "Karaoğlu"});

**INSERT:**

If you want to insert a record into a table then:

    db.insert({

	    "firstname"   : "Hasan", 

	    "lastname"    : "Karaoğlu",

	    "address_id"  : 2,

	    "customer_id" : 134 

    })

**DELETE:**

If you want to delete a record from a table then:

    db.where("customer_id", "=", 134)

      .where("address_id", "=", 1)

      .delete()

**JOIN:**

If you want to join a table, then:

	

    db.select()

      .join("customer AS c", { first : "c.customer_id", operator: "=", "second" : "a.customer_id"})

      .where("a.customer_id", "=", 134)

You can also use **leftJoin** and **rightJoin**	 functions to use other join types.

**ORDER BY:**

If you want to order results, then:

    db.select()

      .orderBy("firstname", "desc")

**GROUP BY:**

  If you want to group results, then:

      db.select("COUNT(address_id)")

        .groupBy("customer_id") 

or for multiple grouping:

		

	  db.select("COUNT(address_id)")

        .groupBy(["customer_id", "zipCode"]) 

**HAVING:**

If you want to filter group results, then:

	

    db.select("COUNT(address_id)")

      .groupBy("customer_id") 

      .having("zipCode", "<",  34000)

**LIMIT:**

If you want to limit records count then:

     db.select()

	   .limit(100)

or

    db.select()

      .limit(0, 100)