Convert INT to VARCHAR SQL

Use the convert function.

SELECT CONVERT(varchar(10), field_name) FROM table_name

Use the STR function:

SELECT STR(field_name) FROM table_name

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Arguments

float_expression

Is an expression of approximate numeric (float) data type with a decimal point.

length

Is the total length. This includes decimal point, sign, digits, and spaces. The default is 10.

decimal

Is the number of places to the right of the decimal point. decimal must be less than or equal to 16. If decimal is more than 16 then the result is truncated to sixteen places to the right of the decimal point.

source: https://msdn.microsoft.com/en-us/library/ms189527.aspx