UK[ka?nt] US[ka?nt]
n.Total number; count; charges; argument
v. Count; calculate the total; count...; important
Third person singular: counts Plural: counts Present participle: counting Past tense: counted Past participle: counted
mysql COUNT() function syntax
Function: Returns the number of rows matching the specified conditions.
Syntax: SELECT COUNT(*) FROM table_name
mysql COUNT() function example
//計算客戶 "Carter" 的訂單數(shù) SELECT COUNT(Customer) AS CustomerNilsen FROM Orders WHERE Customer='Carter';