Easy Programming Language Database Operation Tutorial308

Introduction

Easy Programming Language (EPL) is a BASIC-like programming language that is designed for beginners. It is a simple and easy-to-use language that is suitable for creating small programs and games. EPL can also be used to perform database operations, which allows you to store and retrieve data from a database.

Connecting to a Database

To connect to a database in EPL, you must first create a database object. The following code shows how to create a database object and connect to a MySQL database:```epl
Dim db As Database
("localhost", "username", "password", "databasename")
```

Executing Queries

Once you have connected to a database, you can execute queries to retrieve data. The following code shows how to execute a query to retrieve all the records from a table:```epl
Dim rs As Recordset
rs = ("SELECT * FROM table_name")
```

Fetching Data

After executing a query, you can fetch the data by using the Fetch() method. The Fetch() method returns the next row of data from the recordset. The following code shows how to fetch the data from the recordset:```epl
Do
Dim data = ()
If data Is Nothing Then Exit Do
' Do something with the data
Loop
```

Updating Data

You can also update data in a database by using the Update() method. The Update() method takes a SQL statement as an argument and executes the statement. The following code shows how to update a record in a table:```epl
Dim sql = "UPDATE table_name SET column_name = 'value' WHERE id = 1"
(sql)
```

Inserting Data

You can also insert data into a database by using the Insert() method. The Insert() method takes a SQL statement as an argument and executes the statement. The following code shows how to insert a record into a table:```epl
Dim sql = "INSERT INTO table_name (column_name) VALUES ('value')"
(sql)
```

Deleting Data

You can also delete data from a database by using the Delete() method. The Delete() method takes a SQL statement as an argument and executes the statement. The following code shows how to delete a record from a table:```epl
Dim sql = "DELETE FROM table_name WHERE id = 1"
(sql)
```

Closing the Database

When you are finished working with the database, you should close the database connection. The following code shows how to close the database connection:```epl
()
```

2024-11-26

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