Can we use multiple database in CodeIgniter?

Can we use multiple database in CodeIgniter?

If your application is built with the CodeIgniter framework, it’s exceptionally simple to use multiple databases. CodeIgniter provides an easy way to put through and utilize numerous databases on the same or distinct server.

How to load 2 database in CodeIgniter?

If you need to connect to more than one database simultaneously you can do so as follows: $DB1 = $this->load->database(‘group_one’, TRUE); $DB2 = $this->load->database(‘group_two’, TRUE);

How can I change database in CodeIgniter?

You can create session variable to indicate the current database, and in your controller’s constructor, get the variable and load the database.

How to connect database in model CodeIgniter?

In CodeIgniter, go to application/config/databse. php for database configuration file. In database. php file, fill the entries to connect CodeIgniter folder to your database.

Can we use multiple databases in laravel & CodeIgniter If yes then how?

You can use more than one database in your application. If you are using CodeIgniter Framework then you need to define the database connection details separately for multiple databases and load it explicitly for performing operations on the database.

How can I tell if a database is connected in CodeIgniter?

Linked

1. Codeigniter switch to secondary database if primary is down.
2. Get response from insert model in code igniter.
3. CodeIgniter 3 database connection load error check return value.
4. CodeIgniter Check the connection to multi databases take long time.

How do I join two tables in different MySQL servers?

1. You can try FEDERATED storage engine, dev.mysql.com/doc/refman/5.1/en/federated-storage-engine.html.
2. You can use a FEDERATED storage engine.
3. I think your best bet will be to select both tables , get their results in php, and apply any data operation you may need.
4. possible duplicate of MySQL Cross Server Select Query.

Where is database connection in CodeIgniter?

CodeIgniter has a config file that lets you store your database connection values (username, password, database name, etc.). The config file is located at application/config/database. php. You can also set database connection values for specific environments by placing database.

How do I join two databases together?

The tables and databases will be created under the same server.
…
Join Tables from Different Databases in SQL Server

1. Step 1: Create the first database and table.
2. Step 2: Create the second database and table.
3. Step 3: Join the tables from the different databases in SQL Server.
4. Step 4 (optional): Drop the databases created.

How do I connect two databases to another server?

Follow these steps to create a Linked Server:

1. Server Objects -> Linked Servers -> New Linked Server.
2. Provide Remote Server Name.
3. Select Remote Server Type (SQL Server or Other).
4. Select Security -> Be made using this security context and provide login and password of remote server.
5. Click OK and you are done !!

What is DB in CodeIgniter?

Can you join 2 tables from different databases?

SQL Server allows you to join tables from different databases as long as those databases are on the same server. The join syntax is the same; the only difference is that you must fully qualify table names.

How do I query a table in another database?

Steps to Join Tables from Different Databases in SQL Server

1. Step 1: Create the first database and table.
2. Step 2: Create the second database and table.
3. Step 3: Join the tables from the different databases in SQL Server.
4. Step 4 (optional): Drop the databases created.

How do you check database is connected or not in CodeIgniter 4?

Step 4: Go to the folder (app/config) and open the database. php file. Step 5: If you are locally connected, set username root and password ”, but if you have connected with your server, use your username=>’YourUserName’ and password=>’YourPassword,’ and finally set your default group.

What is DSN in CodeIgniter?

dsn. The DSN connect string (an all-in-one configuration sequence). hostname. The hostname of your database server. Often this is ‘localhost’.

Can I join 2 tables from different databases?

How do I connect to a different database?

How do I SELECT data from a different server?

How do you check database is connected or not in CodeIgniter?

ini_set(‘display_errors’, ‘Off’); // Load the database config file. Why not just use $this->load->database(), which does everything you are doing manually and more? Using $this->load->database(); will throw a error page if the connection failed or for example the config file does not exists.

How do I join two tables in a query?

In query Design view, double-click the join you want to change. The Join Properties dialog box appears. In the Join Properties dialog box, note the choices listed beside option 2 and option 3. Click the option that you want to use, and then click OK.

How do I query data from two databases?

This example illustrates a method to transfer data from one database into a memory-optimized table in a different database.

1. Create Test Objects. Execute the following Transact-SQL in SQL Server Management Studio.
2. Attempt cross-database query.
3. Create a memory-optimized table type.
4. Re-attempt the cross-database query.

How do I query two databases?

Where is database set in CodeIgniter?

How can I join two database in one query?

How can you connect to different databases using just one query?

It is possible to use database tables from different databases in one query, if your current connection is allowed to access both databases. You just need to prefix every table name with the database name: SELECT * FROM `databasename`.