A select-list alias form besides expr [AS] alias: 'equals' (alias = expr, SQL Server) or 'string' (expr 'alias', a string literal used as the alias).
expr [AS] alias
'equals'
alias = expr
'string'
expr 'alias'
A select-list alias form besides
expr [AS] alias:'equals'(alias = expr, SQL Server) or'string'(expr 'alias', a string literal used as the alias).