What are the methods to convert SQL into a string?

In SQL, you can convert data to a string using the following methods:

1. Utilize the CONVERT function: The CONVERT function can change the data type to a string. For instance, CONVERT(VARCHAR, column_name) can convert the value of a column to a string type.
2. The CAST function can also be used to convert data types to strings. For example, casting column_name AS VARCHAR can convert the value of a column to a string type.
3. You can concatenate multiple strings together using the concatenation operator +. For example, column_name + ‘string’ can combine the value of a column with another string.
4. By using the CONCAT function: It can be used to concatenate multiple strings together. For example, CONCAT(column_name, ‘string’) can concatenate the value of a column with another string.
5. The COALESCE function combines multiple values and returns the first non-null value. For example, COALESCE(column_name, ‘default_value’) converts a column value to a string, returning the default value string if the column value is empty.