我在服务器上运行良好，但在其他数据库（不同的服务器）中，相同的sp运行速度太慢。我知道问题出在哪里，但我找不到为什么它在那里太慢的原因。在我的服务器中，我在主表（客户端表）中有大约2000行，但在另一个中，我有大约7000行。我知道这不是那么多，但在这种情况下，因为这个sp正在搜索一个单词几个字段可能比常规字段慢。你们有些人可以给我一些建议吗？我确实试过一个非群集的索引。 提前致谢
INSERT INTO @varTable
select distinct C.id from client C
INNER JOIN place pl ON pl.plid = C.id
LEFT OUTER JOIN country ctr ON ctr.nr = pl.country
LEFT OUTER JOIN person per ON per.id = C.id
LEFT OUTER JOIN property pr ON pr.id = C.id
WHERE
(
(NOT PR.VALUE IS NULL AND PR.VALUE LIKE '%' + @varSearch + '%')
OR (pl.pl_a_name LIKE '%' + @FIRST_WORD + '%')
OR (NOT pl.add1 IS NULL AND pl.add1 LIKE '%' + @varSearch + '%')
OR (NOT pl.add2 IS NULL AND pl.add2 LIKE '%' + @varSearch + '%')
OR (NOT pl.add3 IS NULL AND pl.add3 LIKE '%' + @varSearch + '%')
OR (NOT pl.pcod IS NULL AND pl.pcod LIKE '%' + @varSearch + '%')
OR (NOT pl.descr IS NULL AND pl.descr LIKE '%' + @varSearch + '%')
OR (NOT pl.phone IS NULL AND pl.phone LIKE '%' + @varSearch + '%')
OR (NOT per.ctname IS NULL AND per.ctname LIKE '%' + @varSearch + '%')
OR (NOT per.phone IS NULL AND per.phone LIKE '%' + @varSearch + '%')
)
AND
C.COMPANY = @cia
and (@DEPT IS NULL OR C.DEPT in (SELECT nstr FROM iter_charlist_to_table(@DEPT_LIMIT,DEFAULT)))
AND ( (@state = 1 AND STATUS != '0') OR (@state <> 1 and STATUS = 'C') )
;WITH DistinctClient AS (
SELECT DISTINCT C.id, listpos
from @varTable C
INNER JOIN place pl ON pl.plid = C.id
LEFT OUTER JOIN country ctr ON ctr.nr = pl.country
LEFT OUTER JOIN person per ON per.id = C.id
LEFT OUTER JOIN property pr ON pr.id = C.id
INNER JOIN iter_charlist_to_table(@SEARCH_NAME, ' ') L ON
(
(NOT PR.VALUE IS NULL AND PR.VALUE LIKE '%' + L.str + '%')
OR (pl.pl_a_name LIKE '%' + L.str + '%')
OR (NOT pl.add1 IS NULL AND pl.add1 LIKE '%' + L.str + '%')
OR (NOT pl.add2 IS NULL AND pl.add2 LIKE '%' + L.str + '%')
OR (NOT pl.add3 IS NULL AND pl.add3 LIKE '%' + L.str + '%')
OR (NOT pl.pcod IS NULL AND pl.pcod LIKE '%' + L.str + '%')
OR (NOT pl.descr IS NULL AND pl.descr LIKE '%' + L.str + '%')
OR (NOT pl.phone IS NULL AND pl.phone LIKE '%' + L.str + '%')
OR (NOT per.ctname IS NULL AND per.ctname LIKE '%' + L.str + '%')
OR (NOT per.phone IS NULL AND per.phone LIKE '%' + L.str + '%')
OR (NOT per.cellphone IS NULL AND per.cellphone LIKE '%' + L.str + '%')
)
),
DistinctClientsMatchingAllWords AS (
SELECT TOP 100 DistinctClient.OBJ_NO FROM DistinctClient
GROUP BY
DistinctClient.id
HAVING SUM(listpos) = @wsum
)
INSERT INTO @tempResults SELECT * FROM DistinctClientsMatchingAllWords
END
答案 0 :(得分：0)
您正在使用的第一个CTE作为第二个CTE与GROUP BY / HAVING的嵌套查询没有帮助。尝试临时表而不是第一个CTE，在（id，listpos）上创建一个唯一的聚簇索引，然后引用第二个CTE中的临时表。事实上，看起来不需要第二次CTE。此外，您的表变量是否具有唯一的群集？胡安对LIKE的评论也是如此。这肯定会伤害到某些事情......可能比其他事情更重要。这是基于我所说的粗略版本。
INSERT INTO @varTable
select distinct C.id
from client C
INNER JOIN place pl ON pl.plid = C.id
LEFT OUTER JOIN country ctr ON ctr.nr = pl.country
LEFT OUTER JOIN person per ON per.id = C.id
LEFT OUTER JOIN property pr ON pr.id = C.id
WHERE
(
(NOT PR.VALUE IS NULL AND PR.VALUE LIKE '%' + @varSearch + '%')
OR (pl.pl_a_name LIKE '%' + @FIRST_WORD + '%')
OR (NOT pl.add1 IS NULL AND pl.add1 LIKE '%' + @varSearch + '%')
OR (NOT pl.add2 IS NULL AND pl.add2 LIKE '%' + @varSearch + '%')
OR (NOT pl.add3 IS NULL AND pl.add3 LIKE '%' + @varSearch + '%')
OR (NOT pl.pcod IS NULL AND pl.pcod LIKE '%' + @varSearch + '%')
OR (NOT pl.descr IS NULL AND pl.descr LIKE '%' + @varSearch + '%')
OR (NOT pl.phone IS NULL AND pl.phone LIKE '%' + @varSearch + '%')
OR (NOT per.ctname IS NULL AND per.ctname LIKE '%' + @varSearch + '%')
OR (NOT per.phone IS NULL AND per.phone LIKE '%' + @varSearch + '%')
)
AND
C.COMPANY = @cia
and (@DEPT IS NULL OR C.DEPT in (SELECT nstr FROM iter_charlist_to_table(@DEPT_LIMIT,DEFAULT)))
AND ( (@state = 1 AND STATUS != '0') OR (@state <> 1 and STATUS = 'C') )
SELECT DISTINCT C.id, listpos
INTO #DistinctClient
from @varTable C
INNER JOIN place pl ON pl.plid = C.id
LEFT OUTER JOIN country ctr ON ctr.nr = pl.country
LEFT OUTER JOIN person per ON per.id = C.id
LEFT OUTER JOIN property pr ON pr.id = C.id
INNER JOIN iter_charlist_to_table(@SEARCH_NAME, ' ') L ON
(
(NOT PR.VALUE IS NULL AND PR.VALUE LIKE '%' + L.str + '%')
OR (pl.pl_a_name LIKE '%' + L.str + '%')
OR (NOT pl.add1 IS NULL AND pl.add1 LIKE '%' + L.str + '%')
OR (NOT pl.add2 IS NULL AND pl.add2 LIKE '%' + L.str + '%')
OR (NOT pl.add3 IS NULL AND pl.add3 LIKE '%' + L.str + '%')
OR (NOT pl.pcod IS NULL AND pl.pcod LIKE '%' + L.str + '%')
OR (NOT pl.descr IS NULL AND pl.descr LIKE '%' + L.str + '%')
OR (NOT pl.phone IS NULL AND pl.phone LIKE '%' + L.str + '%')
OR (NOT per.ctname IS NULL AND per.ctname LIKE '%' + L.str + '%')
OR (NOT per.phone IS NULL AND per.phone LIKE '%' + L.str + '%')
OR (NOT per.cellphone IS NULL AND per.cellphone LIKE '%' + L.str + '%')
)
CREATE UNIQUE CLUSTERED INDEX ix_DistinctClientClustered ON #DistinctClient (id, listpos)
INSERT INTO @tempResults
SELECT TOP 100 OBJ_NO
FROM #DistinctClient
GROUP BY id
HAVING SUM(listpos) = @wsum
END