Question

在下面的示例之外，我实际上运行了一个在9秒内拉出39000行的查询。我想更改查询以将与BusinessRuleCriteriaID相关的行合并为一行（在提供的示例中，所有9行应该是一行）。我可以牺牲相当多的时间来实现这一目标。在最大我想要查询需要2分钟。我最快的时间是在ItemTagDescriptions和SegSubTags列表中进行连接30分钟。我尝试的任何事情都已接近2分钟。

使用的SQL版本是SQL Server 2008。

   SELECT [BusinessRuleCriteriaID], [ItemType], [tag], [TagValue], Operator,
           [ESSubTag], [ES01], [ES02], [ES03], [ES04], [ES05], [ES06], [ES07], [ES08], [ES09], [ES10], [ES11], [ES12],
           [ITMSubTag], [ITM01],
           [RR4SubTag], [RR401], [RR402]
    FROM
    (
        SELECT 
            DISTINCT crit.BusinessRuleCriteriaID, 
            crit.ItemType, 
            crit.tag,
            crit.TagValue,
            crit.Operator,
            case when seg.SegmentType = 'ES' then SegSubTags.list end AS [ESSubTag],
            case when seg.SegmentType = 'ITM' then SegSubTags.list end AS [ItemSubTag],
            case when seg.SegmentType = 'RR4' then SegSubTags.list end AS [RR4SubTag],
            c.CellName as [SegmentId],
            case when c.CellValue is not null and len(c.CellValue) > 0 Then c.CellValue
             Else ItemTagDescriptions.list
             End as [Tags]
        FROM
            BMT_BusinessRuleCriteria crit 
        LEFT OUTER JOIN
            BMT_MappingRuleServiceType it
        ON it.BusinessRuleCriteriaID = crit.BusinessRuleCriteriaID
        LEFT OUTER JOIN
            BMT_BusinessRuleSegment seg
        ON seg.BusinessRuleCriteriaID = crit.BusinessRuleCriteriaID
        LEFT OUTER JOIN
            BMT_BusinessRuleCell c
        ON c.BusinessRuleSegmentID = seg.BusinessRuleSegmentID
        LEFT OUTER JOIN
            BMT_BusinessRuleCellOption MT
        ON c.BusinessRuleCellId = MT.BusinessRuleCellId
        OUTER APPLY 
        ( 
        SELECT 
                IsNull(MT2.Tag, '{Unknown}') + ISNULL('=' + MT.TagValue, '') + ':' + IsNull(MT.CellValue, '') + ';' AS [text()] 
                FROM 
                    BMT_BusinessRuleCellOption MT
                WHERE 
                    MT.BusinessRuleCellId = MT.BusinessRuleCellId
                ORDER BY 
                    MT.BusinessRuleCellId 
                FOR XML PATH('')) ItemTagDescriptions (list) 
        OUTER APPLY 
        (
                SELECT IsNull(SegSubTag.Tag, '{Unknown}') + ' ' + ISNULL(SegSubTag.Operator, '') + ' ' + IsNull(SegSubTag.TagValue, '') + ';' as [text()]
                FROM 
                    BMT_BusinessRuleSegmentTag SegSubTag 
                WHERE 
                    SegSubTag.BusinessRuleSegmentID = seg.BusinessRuleSegmentID
                ORDER BY 
                    SegSubTag.BusinessRuleSegmentID 
                FOR XML PATH('')
        ) SegSubTags (list) 
            WHERE 
            crit.BusinessRuleCriteriaID = 489302
    ) AS ESTable
    PIVOT
    (
        max([Tags])
        FOR [SegmentId] IN ([ES01],[ES02],[ES03],[ES04],[ES05], [ES06], [ES07], [ES08], [ES09], [ES10], [ES11], [ES12], [ITM01], [RR401], [RR402])
    ) AS ESPivotTable

＆＃13;

    <table border='1'><body>
<tr><td>BusinessRuleCriteriaID</td><td>ItemType</td><td>tag</td><td>TagValue</td><td>Operator</td><td>ESSubTag</td><td>ES01</td><td>ES02</td><td>ES03</td><td>ES04</td><td>ES05</td><td>ES06</td><td>ES07</td><td>ES08</td><td>ES09</td><td>ES10</td><td>ES11</td><td>ES12</td><td>ItemSubTag</td><td>ITM01</td><td>RR4SubTag</td><td>RR401</td><td>RR402</td></tr>
<tr><td>489302</td><td>OP</td><td>DHOTIAP</td><td>NULL</td><td>present</td><td>NULL</td><td>NULL</td><td>NULL</td><td>NULL</td><td>NULL</td><td>NULL</td><td>NULL</td><td>NULL</td><td>NULL</td><td>NULL</td><td>NULL</td><td>NULL</td><td>NULL</td><td>NULL</td><td>{INFOSTOR}</td><td>NULL</td><td>88</td><td>45</td></tr>
<tr><td>489302</td><td>OP</td><td>DHOTIAP</td><td>NULL</td><td>present</td><td>NULL</td><td>NULL</td><td>NULL</td><td>NULL</td><td>NULL</td><td>NULL</td><td>NULL</td><td>NULL</td><td>NULL</td><td>NULL</td><td>NULL</td><td>NULL</td><td>NULL</td><td>PARARND present ;</td><td>PARARND:{INFOSTOR};</td><td>NULL</td><td>NULL</td><td>NULL</td></tr>
<tr><td>489302</td><td>OP</td><td>DHOTIAP</td><td>NULL</td><td>present</td><td>NULL</td><td>NULL</td><td>NULL</td><td>NULL</td><td>NULL</td><td>NULL</td><td>NULL</td><td>NULL</td><td>NULL</td><td>NULL</td><td>NULL</td><td>NULL</td><td>NULL</td><td>PARACONT present ;</td><td>PARACONT:{INFOSTOR};</td><td>NULL</td><td>NULL</td><td>NULL</td></tr>
<tr><td>489302</td><td>OP</td><td>DHOTIAP</td><td>NULL</td><td>present</td><td>NULL</td><td>NULL</td><td>NULL</td><td>NULL</td><td>NULL</td><td>NULL</td><td>NULL</td><td>NULL</td><td>NULL</td><td>NULL</td><td>NULL</td><td>NULL</td><td>NULL</td><td>PARAJUK present ;</td><td>PARAJUK:{INFOSTOR};</td><td>NULL</td><td>NULL</td><td>NULL</td></tr>
<tr><td>489302</td><td>OP</td><td>DHOTIAP</td><td>NULL</td><td>present</td><td>NULL</td><td>NULL</td><td>NULL</td><td>NULL</td><td>NULL</td><td>NULL</td><td>NULL</td><td>NULL</td><td>NULL</td><td>NULL</td><td>NULL</td><td>NULL</td><td>NULL</td><td>PARAFUL present ;</td><td>PARAFUL:{INFOSTOR};</td><td>NULL</td><td>NULL</td><td>NULL</td></tr>
<tr><td>489302</td><td>OP</td><td>DHOTIAP</td><td>NULL</td><td>present</td><td>NULL</td><td>NULL</td><td>NULL</td><td>NULL</td><td>NULL</td><td>NULL</td><td>NULL</td><td>NULL</td><td>NULL</td><td>NULL</td><td>NULL</td><td>NULL</td><td>NULL</td><td>PARANEK present ;</td><td>PARANEK:{INFOSTOR};</td><td>NULL</td><td>NULL</td><td>NULL</td></tr>
<tr><td>489302</td><td>OP</td><td>DHOTIAP</td><td>NULL</td><td>present</td><td>NULL</td><td>NULL</td><td>NULL</td><td>NULL</td><td>NULL</td><td>NULL</td><td>NULL</td><td>NULL</td><td>NULL</td><td>NULL</td><td>NULL</td><td>NULL</td><td>NULL</td><td>PARANOID present ;</td><td>PARANOID:{INFOSTOR};</td><td>NULL</td><td>NULL</td><td>NULL</td></tr>
<tr><td>489302</td><td>OP</td><td>DHOTIAP</td><td>NULL</td><td>present</td><td>NULL</td><td>NULL</td><td>NULL</td><td>NULL</td><td>NULL</td><td>NULL</td><td>NULL</td><td>NULL</td><td>NULL</td><td>NULL</td><td>NULL</td><td>NULL</td><td>NULL</td><td>PARATRAN present ;</td><td>PARATRAN:{INFOSTOR};</td><td>NULL</td><td>NULL</td><td>NULL</td></tr>
<tr><td>489302</td><td>OP</td><td>DHOTIAP</td><td>NULL</td><td>present</td><td>TIKAPE not present ;TIKELP not present ;TIKRAP not present ;</td><td>GH</td><td>TEK</td><td>12</td><td>NULL</td><td>NULL</td><td>SSLYWA:3;REGFA:43;</td><td>SOLFAR:{Data};TENDE:{Data};</td><td>NULL</td><td>NULL</td><td>NULL</td><td>NULL</td><td>W</td><td>NULL</td><td>NULL</td><td>NULL</td><td>NULL</td><td>NULL</td></tr>
</body></table>

<BR><BR>

<table border='1'>
	<body>
		<tr>
			<td>BusinessRuleCriteriaID</td>
			<td>ItemType</td>
			<td>tag</td>
			<td>TagValue</td>
			<td>Operator</td>
			<td>ESSubTag</td>
			<td>ES01</td>
			<td>ES02</td>
			<td>ES03</td>
			<td>ES04</td>
			<td>ES05</td>
			<td>ES06</td>
			<td>ES07</td>
			<td>ES08</td>
			<td>ES09</td>
			<td>ES10</td>
			<td>ES11</td>
			<td>ES12</td>
			<td>ItemSubTag</td>
			<td>ITM01</td>
			<td>RR4SubTag</td>
			<td>RR401</td>
			<td>RR402</td>
		</tr>
		<tr>
			<td>489302</td>
			<td>OP</td>
			<td>DHOTIAP</td>
			<td>NULL</td>
			<td>present</td>
			<td>TIKAPE not present ;TIKELP not present ;TIKRAP not present ;</td>
			<td>GH</td>
			<td>TEK</td>
			<td>12</td>
			<td>NULL</td>
			<td>NULL</td>
			<td>SSLYWA:3;REGFA:43;</td>
			<td>SOLFAR:{Data};TENDE:{Data};</td>
			<td>NULL</td>
			<td>NULL</td>
			<td>NULL</td>
			<td>NULL</td>
			<td>W</td>
			<td>PARARND present ;PARACONT present ;PARAJUK present ;PARAFUL present ;PARANEK present ;PARANOID present ;PARATRAN present ;</td>
			<td>{INFOSTOR};PARARND:{INFOSTOR};PARACONT:{INFOSTOR};PARAJUK:{INFOSTOR};PARAFUL:{INFOSTOR};PARANEK:{INFOSTOR};PARANOID:{INFOSTOR};PARATRAN:{INFOSTOR};</td>
			<td>NULL</td>
			<td>88</td>
			<td>45</td>
		</tr>
	</body>
</table>

<BR><BR>

<table border='1'><body>
<tr><td id='1'>BusinessRuleCriteriaID</td><td id='2'>ItemType</td><td id='3'>tag</td><td id='4'>TagValue</td><td id='5'>Operator</td><td id='6'>ESSubTag</td><td id='19'>ItemSubTag</td><td id='21'>RR4SubTag</td></tr>
<tr><td id='1'>489302</td><td id='2'>OP</td><td id='3'>DHOTIAP</td><td id='4'>NULL</td><td id='5'>present</td><td id='6'>NULL</td><td id='19'>NULL</td><td id='21'>NULL</td></tr>
<tr><td id='1'>489302</td><td id='2'>OP</td><td id='3'>DHOTIAP</td><td id='4'>NULL</td><td id='5'>present</td><td id='6'>NULL</td><td id='19'>PARARND present ;</td><td id='21'>NULL</td></tr>
<tr><td id='1'>489302</td><td id='2'>OP</td><td id='3'>DHOTIAP</td><td id='4'>NULL</td><td id='5'>present</td><td id='6'>NULL</td><td id='19'>PARACONT present ;</td><td id='21'>NULL</td></tr>
<tr><td id='1'>489302</td><td id='2'>OP</td><td id='3'>DHOTIAP</td><td id='4'>NULL</td><td id='5'>present</td><td id='6'>NULL</td><td id='19'>PARAJUK present ;</td><td id='21'>NULL</td></tr>
<tr><td id='1'>489302</td><td id='2'>OP</td><td id='3'>DHOTIAP</td><td id='4'>NULL</td><td id='5'>present</td><td id='6'>NULL</td><td id='19'>PARAFUL present ;</td><td id='21'>NULL</td></tr>
<tr><td id='1'>489302</td><td id='2'>OP</td><td id='3'>DHOTIAP</td><td id='4'>NULL</td><td id='5'>present</td><td id='6'>NULL</td><td id='19'>PARANEK present ;</td><td id='21'>NULL</td></tr>
<tr><td id='1'>489302</td><td id='2'>OP</td><td id='3'>DHOTIAP</td><td id='4'>NULL</td><td id='5'>present</td><td id='6'>NULL</td><td id='19'>PARANOID present ;</td><td id='21'>NULL</td></tr>
<tr><td id='1'>489302</td><td id='2'>OP</td><td id='3'>DHOTIAP</td><td id='4'>NULL</td><td id='5'>present</td><td id='6'>NULL</td><td id='19'>PARATRAN present ;</td><td id='21'>NULL</td></tr>
<tr><td id='1'>489302</td><td id='2'>OP</td><td id='3'>DHOTIAP</td><td id='4'>NULL</td><td id='5'>present</td><td id='6'>TIKAPE not present ;TIKELP not present ;TIKRAP not present ;</td><td id='19'>NULL</td><td id='21'>NULL</td></tr>
</body></table>

＆＃13;

＆＃13; 编辑：添加了DataSample，其中pivot已注释掉

Answer 1

我认为我建议的第一件事就是在没有＆＃34; DISTINCT＆＃34;的情况下重新编写您的查询。在里面。请改用GROUP BY子句，因为根据我的经验，这往往会表现得更好。您也可以在没有PIVOT语句的情况下从查询中发布样本数据集。它将帮助我识别您在BusinessRuleCriteriaID中遇到的分组问题。

使用相同的ID SQL Server将行合并在一起

1 个答案: