OpenOffice / LibreOffice Base SQL 分组依据

Question

我有一个包含客户数据和发票的小型 LibreOffice 数据库。每张发票由 n 项组成。

客户：

**********************
* ID * Name * Adress *
**********************
*  0 *   N1 *     A1 *
*  1 *   N2 *     A2 *
**********************

发票：

********************************
* ID * CustomerID *       Date *
********************************
*  0 *          0 * 01/01/1970 *
*  1 *          0 * 08/02/1971 *
********************************

项目：

***********************************
* ID * InvoiceID * Amount * Price *
***********************************
*  1 *         0 *     12 * 12.95 *
*  2 *         0 *      9 *  8.75 *
*  3 *         1 *     29 *  8.75 *
***********************************

我想创建一个包含发票值的查询：

SELECT "invoices"."ID", SUM( "items"."Amount" * "items"."Price" ) 
FROM "invoices", "items" 
WHERE "invoices"."ID" = "items"."InvoiceID" 
GROUP BY "invoice"."ID"

到目前为止一切正常。但是如果我想在查询中包含更多信息，例如

SELECT "invoices"."ID", "invoices"."Date", SUM( "items"."Amount" * "items"."Price" ) 
FROM "invoices", "items" 
WHERE "invoices"."ID" = "items"."InvoiceID" 
GROUP BY "invoice"."ID"

我收到错误消息 Not in aggregate function or group by clause。我在 phpmyadmin 中尝试过它并且它有效，所以我认为 SQL 语法应该没问题。我的 SQL 语句有什么问题？

Answer 1

您必须在 group by 子句中包含 "invoices"."Date"。

OpenOffice / LibreOffice Base SQL 分组依据

OpenOffice / LibreOffice Base SQL Group By

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