Question

我有以下查询可获取正确的数据，但它不会以我想要的方式输出。

查询如下：

DECLARE @xml xml = '<review><score>98</score><gameid>99</gameid><reviewdate>11/11/11</reviewdate><reviewtitle>Skyrim : A Real Masterpiece </reviewtitle><reviewdescription>Skyrim is the best open world-game ever made.</reviewdescription></review>';
DECLARE @dataCount int, @currentNodeIndex int;
DECLARE @outputTable TABLE (Rating nvarchar(max), GameId nvarchar(max), DateReviewed nvarchar(max), Title nvarchar(max), Description nvarchar(max));

SET @dataCount = @xml.query('count(/review/*)').value('.', 'int');
SET @currentNodeIndex = 1;

WHILE @currentNodeIndex <= @dataCount
BEGIN
  SELECT @xml.query('/node()[1]/node()[sql:variable("@currentNodeIndex")]/node()[1]').value('.', varchar(max)') as Temp
  FROM GameData;
  SET @currentNodeIndex = @currentNodeIndex + 1;
END

这会生成正确的数据，但是像这样：

Temp
 98

Temp
 99

Temp
11/11/11

Temp
Skyrim : A Real Masterpiece

Temp
Skyrim is the best open world-game ever made

我希望使用从@outputTable创建的别名在一张表中在一条水平线上显示

就像

Rating GameId DateReviewed Title Description

任何帮助将不胜感激。

Answer 1

DECLARE @xml xml = '<review><score>98</score><gameid>99</gameid><reviewdate>11/11/11</reviewdate><reviewtitle>Skyrim : A Real Masterpiece </reviewtitle><reviewdescription>Skyrim is the best open world-game ever made.</reviewdescription></review>';

DECLARE @outputTable TABLE (Rating nvarchar(max), GameId nvarchar(max), DateReviewed nvarchar(max), Title nvarchar(max), Description nvarchar(max));

--Do your insert into the temp table with select from xml
INSERT INTO @outputTable
SELECT a.value('score[1]', 'nvarchar(max)') AS [Rating], a.value('gameid[1]', 'nvarchar(max)') AS [GameId], a.value('reviewdate[1]', 'nvarchar(max)') AS [DateReviewed], a.value('reviewtitle[1]', 'nvarchar(max)') AS [Title], a.value('reviewdescription[1]', 'nvarchar(max)') AS [Description]
FROM @xml.nodes('/review') AS x(a)

Answer 2

要解析xml行并将其输出到查询中，那么我会有所不同。

DECLARE @T TABLE (Data XML)
INSERT INTO @T VALUES
('<review><score>98</score><gameid>99</gameid><reviewdate>11/11/11</reviewdate><reviewtitle>Skyrim : A Real Masterpiece </reviewtitle><reviewdescription>Skyrim is the best open world-game ever made.</reviewdescription></review>'),
('<review><score>100</score><gameid>1002</gameid><reviewdate>11/11/12</reviewdate><reviewtitle>Skyrim : A Real Masterpiece </reviewtitle><reviewdescription>Skyrim is 222the best open world-game ever made.</reviewdescription></review>')


SELECT
    Score = Data.value('(/review/score/.)[1]', 'INT'),
    GameID = Data.value('(/review/gameid/.)[1]', 'INT'),
    ReviewDate = Data.value('(/review/reviewdate/.)[1]', 'NVARCHAR(10)'),
    ReviewTitle = Data.value('(/review/reviewtitle/.)[1]', 'NVARCHAR(300)'),
    ReviewDescription = Data.value('(/review/reviewdescription/.)[1]', 'NVARCHAR(MAX)')
FROM  
     @T

如何通过While循环将多个结果集组合到一个表中？

2 个答案: