客表（customers）中有一存储顾客姓名的字段（customerName），现在想显示"欢迎customerName光临小店"的字样，下列SQL语句能够满足该需求的是( )
SELECT "欢迎"||customerName||"光临小店" FROM customers;
SELECT '欢迎'||customerName||'光临小店' FROM customers;
SELECT '欢迎'|customerName|'光临小店' FROM customers;
SELECT "欢迎"|customerName|"光临小店'"FROM customers;
