The first thing that we need to know is that CAST and CONVERT functions achieve practically the same results. However, there are some fundamental and subtle differences between the two. The first difference between the two is the style of writing. The cast function uses the A “AS” B syntactical format, whereas the convert function uses the A “Comma(,)” B format. Because of this subtle difference, the cast function is easier to use in comparison to the convert function because it has a near-identical logic as the aliasing function. Although the cast function is easier in terms of syntactical format, it does not mean that the convert function is useless. The convert function is a lot more flexible than the cast function, especially with the date and time conversions. When converting date and time, the cast function will only be able to do either date or time, but never both at the same time. In contrast, the convert function will be able to grab either date or time, and both of them all at once via its style code parameters. In other words, it has a state-of-the-art library of different formatting styles, and through these formatting styles, you are able to easily dictate the formatting style simply by remembering the styling codes. And because of this, the convert function only converts the value’s visual appearances in accordance with its library of styles, whereas the cast function will forcefully alter the formatting of all data types. This makes the casting function the ideal candidate for converting characters, strings, and decimals.