使用JDBC在SQL中的日期之间进行搜索？

Question

我目前正在编写一个Java Swing应用程序,它从MYOB数据库文件中读取数据并在表格中显示某些信息.我已经能够成功生成所需的SQL语句,但是我无法添加日期之间的搜索功能(我们的数据库非常大,所以我们试图限制结果).我的一个查询的示例如下(用Java编写):

rs = stmt.executeQuery("SELECT sales.InvoiceNumber, sales.ShipToAddress, sales.Date "
                        + "FROM sales, customers "
                        + "WHERE sales.CardRecordID = customers.CardRecordID "
                        + "AND customers.Name = 'Cash Sales' "
                        + "ORDER BY sales.ShipToAddress ASC, sales.Date DESC"
                        + ";");

我有两个日期(它们实际上是Java中的字符串,但格式为dd/MM/yyyy).

我已经尝试AND在我WHERE的BETWEEN语句中使用另一个子句,但我从JDBC得到以下错误[MYOB ODBC]Error getting the literal value of right operand.

实际陈述如下:

rs = stmt.executeQuery("SELECT sales.InvoiceNumber, sales.ShipToAddress, sales.Date "
                        + "FROM sales, customers "
                        + "WHERE sales.CardRecordID = customers.CardRecordID "
                        + "AND customers.Name = 'Cash Sales' "
                        + "AND sales.Date BETWEEN " + sdate + " AND " + edate + " "
                        + "ORDER BY sales.ShipToAddress ASC, sales.Date DESC"
                        + ";");

有人能帮我解决这个问题的正确语法吗？这是缺少的最后一项功能.

编辑:当前值sdate和25 edate都是25/10/2013,因为它们默认为今天的日期.我已经设置了我正在测试的虚拟文件,以确保它将提供此日期范围的数据.另外,对于澄清,我希望搜索日期是包含在内的.

Answer 1

在您的日期周围使用报价:

rs = stmt.executeQuery("SELECT sales.InvoiceNumber, sales.ShipToAddress, sales.Date "
            + "FROM sales, customers "
            + "WHERE sales.CardRecordID = customers.CardRecordID "
            + "AND customers.Name = 'Cash Sales' "
            + "AND sales.Date BETWEEN '" + sdate + "' AND '" + edate + "' "
            + "ORDER BY sales.ShipToAddress ASC, sales.Date DESC"
            + ";");

或者使用预准备语句可能更安全(例如,如果日期来自不受信任的输入):

SimpleDateFormat formatter = new SimpleDateFormat("dd/MM/yyyy");
java.util.Date startDate = formatter.parse(sdate);
java.util.Date endDate = formatter.parse(edate);
PreparedStatement pstmt = connection.prepareStatement("SELECT sales.InvoiceNumber, sales.ShipToAddress, sales.Date "
            + "FROM sales, customers "
            + "WHERE sales.CardRecordID = customers.CardRecordID "
            + "AND customers.Name = 'Cash Sales' "
            + "AND sales.Date BETWEEN ? AND ? "
            + "ORDER BY sales.ShipToAddress ASC, sales.Date DESC");
pstmt.setDate(1, new java.sql.Date(startDate.getTime()))
pstmt.setDate(2, new java.sql.Date(endDate.getTime()))

between运算符是包含的,但如果您的数据库字段实际上是时间戳,则假定没有时间的日期是00:00:00.000.因此,在这种情况下,为了使您的日期具有包容性,您可以在结束日期添加一天.从技术上讲,它还将包括第二天的第一个时刻(00:00:00.000小时),但根据您的应用,它可能就足够了.

否则你可以>=在"开始日期"和<"结束日期再加上一天"使用:

"sales.Date >= '" + sdate + "' AND sales.Date < '" + edatePlusOne + "' "