<\/span><\/h2>\nLet’s execute a query! After creating the MySqlConnection object, you need to open the connection before executing any queries.<\/p>\n
\ntry\n{\n conn.Open();\n \/\/ Execute queries here\n}\ncatch (Exception ex)\n{\n Console.WriteLine(ex.Message);\n}\nfinally\n{\n conn.Close();\n}\n<\/pre>\nInside the “try” block, you can execute any SQL queries using the MySqlCommand class. For example, to retrieve data from a table named “employees”:<\/p>\n
\nstring query = \"SELECT * FROM employees\";\nMySqlCommand cmd = new MySqlCommand(query, conn);\nMySqlDataReader reader = cmd.ExecuteReader();\n\nwhile (reader.Read())\n{\n Console.WriteLine(reader[\"name\"] + \" | \" + reader[\"age\"]);\n}\n\nreader.Close();\n<\/pre>\nThis code will retrieve all the data from the “employees” table and print it out to the console.<\/p>\n
<\/span>Step 6: Handle errors and close the connection<\/span><\/h2>\nIt’s important to handle any errors that might occur when connecting to the MySQL database. In the “catch” block, you can print out the error message to the console. Finally, in the “finally” block, you should close the connection to the database.<\/p>\n
<\/span>Conclusion<\/span><\/h2>\nWow, that was a whirlwind! But now you know how to connect to a MySQL database in Visual Studio 2019. By installing the MySQL Connector\/NET, adding a reference to your project, creating a connection object, executing a query, and handling errors, you can easily access data from your MySQL database. With this knowledge, you can develop robust applications that rely on a MySQL backend with ease.<\/p>\n","protected":false},"excerpt":{"rendered":"
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