An Oxford, or serial, comma is the last comma in a list; it goes before the word "and." Technically, it's grammatically optional in American English. However, depending on the list you are writing ...

A Reddit post detailing a job rejection story of a Data Engineer has gone viral, highlighting the frustrating consequences of a seemingly minor mistake.

Use and between the last two items, instead of a comma. For example: Today I need to buy milk, bread, apples and potatoes. In longer sentences, you can use commas to separate out extra information ...

A Reddit user shared his frustration after being rejected for a Data Engineer role over a minor error—a missing comma in a SQL query. In his post, titled "Got Rejected Over a Missing Comma – This ...