SQL返回字符串而不是表

Question

我有这个SQL命令：

Select company, purchases.stock,SUM(ammount)*price from purchases INNER JOIN curstock ON purchases.stock = curstock.stock Group by company , purchases.stock;

返回下表：

是否可能打印而不是表格字符串，如： ＆＃34; XXX公司在ZZZ股票中拥有YYY。＆＃34;

或SQL不提供此类格式，必须在代码中完成。

Answer 1

您可以使用CONCAT（）函数

SELECT CONCAT('Company ', company, ' owns ', SUM(ammount)*price, ' in ', purchases.stock, ' stock.') AS value
  FROM purchases 
 INNER JOIN curstock 
    ON purchases.stock = curstock.stock 
 GROUP BY company , purchases.stock;