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私は、SQL Server 2012年のテーブルの上に次のトリガーがあります。私は、テーブル内の他の列への更新後のテーブルで実行中の合計を計算するためにトリガーを取得していますトリガーロック表計算、積算合計
CREATE TRIGGER [dbo].[UpdateTotals]
ON [dbo].[DEC10assessmentData]
AFTER UPDATE
AS
BEGIN
-- SET NOCOUNT ON added to prevent extra result sets from
-- interfering with SELECT statements.
SET NOCOUNT ON;
--update list pract test 1 total
if update (list_practTest1_s1) or update (list_practTest1_s2)
begin
update DEC10assessmentData
set list_practTest1_total = CAST(list_practTest1_s1 AS decimal(3 , 1)) + CAST(list_practTest1_s2 AS decimal(3 , 1))
where
TRY_CONVERT(decimal(3 , 1) , dbo.DEC10assessmentData.list_practTest1_s1) IS NOT NULL
and TRY_CONVERT(decimal(3 , 1) , dbo.DEC10assessmentData.list_practTest1_s2) IS NOT NULL
update DEC10assessmentData
set list_practTest1_total = NULL
where
TRY_CONVERT(decimal(3 , 1) , dbo.DEC10assessmentData.list_practTest1_s1) IS NULL
or TRY_CONVERT(decimal(3 , 1) , dbo.DEC10assessmentData.list_practTest1_s2) IS NULL
end
--update list test 1 total
if UPDATE (list_test1_s1) or update (list_test1_s2)
begin
update DEC10assessmentData
set list_test1_total = CAST(list_test1_s1 AS decimal(3 , 1)) + CAST(list_test1_s2 AS decimal(3 , 1))
where
TRY_CONVERT(decimal(3 , 1) , dbo.DEC10assessmentData.list_test1_s1) IS NOT NULL
and TRY_CONVERT(decimal(3 , 1) , dbo.DEC10assessmentData.list_test1_s2) IS NOT NULL
update DEC10assessmentData
set list_test1_total = NULL
where
TRY_CONVERT(decimal(3 , 1) , dbo.DEC10assessmentData.list_test1_s1) IS NULL
or TRY_CONVERT(decimal(3 , 1) , dbo.DEC10assessmentData.list_test1_s2) IS NULL
end
--update list pract test 2 total
if update (list_practTest2_s1) or update (list_practTest2_s2)
begin
update DEC10assessmentData
set list_practTest2_total = CAST(list_practTest2_s1 AS decimal(3 , 1)) + CAST(list_practTest2_s2 AS decimal(3 , 1))
where
TRY_CONVERT(decimal(3 , 1) , dbo.DEC10assessmentData.list_practTest2_s1) IS NOT NULL
and TRY_CONVERT(decimal(3 , 1) , dbo.DEC10assessmentData.list_practTest2_s2) IS NOT NULL
update DEC10assessmentData
set list_practTest2_total = NULL
where
TRY_CONVERT(decimal(3 , 1) , dbo.DEC10assessmentData.list_practTest2_s1) IS NULL
or TRY_CONVERT(decimal(3 , 1) , dbo.DEC10assessmentData.list_practTest2_s2) IS NULL
end
--update list test 2 total
if UPDATE (list_test2_s1) or update (list_test2_s2)
begin
update DEC10assessmentData
set list_test2_total = CAST(list_test2_s1 AS decimal(3 , 1)) + CAST(list_test2_s2 AS decimal(3 , 1))
where
TRY_CONVERT(decimal(3 , 1) , dbo.DEC10assessmentData.list_test2_s1) IS NOT NULL
and TRY_CONVERT(decimal(3 , 1) , dbo.DEC10assessmentData.list_test2_s2) IS NOT NULL
update DEC10assessmentData
set list_test2_total = NULL
where
TRY_CONVERT(decimal(3 , 1) , dbo.DEC10assessmentData.list_test2_s1) IS NULL
or TRY_CONVERT(decimal(3 , 1) , dbo.DEC10assessmentData.list_test2_s2) IS NULL
end
--update read total
update DEC10assessmentData
set read_total = ((read_test1_Scaled/100 * 8) + (read_test2_scaled/100 * 12))/20 * 100
where
read_test1_Scaled is not null and read_test2_scaled is not null
--update read total to null where scores don't exist
update DEC10assessmentData
set read_total = NULL
where
read_test1_Scaled is null or read_test2_scaled is null
--update write total
update DEC10assessmentData
set writ_total = (CAST(writ_literatureReview as decimal(3,1))/100 * 4
+ CAST(writ_exposition as decimal(3,1))/100 * 8
+ CAST(writ_groupReport as decimal(3,1))/100 * 8
+ cast(writ_synthSummary as decimal(3,1))/100 * 8
+ cast(writ_critEvaluation as decimal(3,1))/100 * 12)/40 * 100
where
TRY_CONVERT(decimal(3 , 1) , writ_literatureReview) is not null and
TRY_CONVERT(decimal(3 , 1) , writ_exposition) is not null and
TRY_CONVERT(decimal(3 , 1) , writ_groupReport) is not null and
TRY_CONVERT(decimal(3 , 1) , writ_synthSummary) is not null and
TRY_CONVERT(decimal(3 , 1) , writ_critEvaluation) is not null
--update write total where scores don't exist
update DEC10assessmentData
set writ_total = NULL
where
TRY_CONVERT(decimal(3 , 1) , writ_literatureReview) is null or
TRY_CONVERT(decimal(3 , 1) , writ_exposition) is null or
TRY_CONVERT(decimal(3 , 1) , writ_groupReport) is null or
TRY_CONVERT(decimal(3 , 1) , writ_synthSummary) is null or
TRY_CONVERT(decimal(3 , 1) , writ_critEvaluation) is null
--update list total
update DEC10assessmentData
set list_total = ((list_test1_scaled/100 * 8) + (list_test2_scaled/100 * 12))/20 * 100
where
list_test1_scaled is not null and list_test2_scaled is not null
--update list total to null where scores don't exist
update DEC10assessmentData
set list_total = NULL
where
list_test1_scaled is null or list_test2_scaled is null
--update speak total
update DEC10assessmentData
set speak_total = (cast(speak_groupPres as decimal(3,1))/100 * 4
+ CAST(speak_indivPres as decimal(3,1))/100 * 8
+ cast(speak_tutorialDiscus as decimal(3,1))/100 * 8)/20 * 100
where
TRY_CONVERT(decimal(3 , 1) , speak_groupPres) is not null and
TRY_CONVERT(decimal(3 , 1) , speak_indivPres) is not null and
TRY_CONVERT(decimal(3 , 1) , speak_tutorialDiscus) is not null
--update speak total where scores don't exist to null
update DEC10assessmentData
set speak_total = NULL
where
TRY_CONVERT(decimal(3 , 1) , speak_groupPres) is null or
TRY_CONVERT(decimal(3 , 1) , speak_indivPres) is null or
TRY_CONVERT(decimal(3 , 1) , speak_tutorialDiscus) is null
--update overall score
update DEC10assessmentData
set overall_total = (read_total + writ_total * 2 + list_total + speak_total)/5
--update rec/not rec's for skills and overall
update DEC10assessmentData
set read_rec = t.rec_read, writ_rec = t.rec_writ, list_rec = t.rec_list, speak_rec = t.rec_speak, overall_rec = t.rec_overall
from dbo.udf_getDEC10RecSkillAndOverall() as t inner join DEC10assessmentData
on t.studentID = DEC10assessmentData.studentID and t.assessmentLookup = DEC10assessmentData.assessmentLookup
--update rec/not rec's for final rec
update DEC10assessmentData
set final_rec = t.rec_final
from dbo.udf_getDEC10RecFinal() as t inner join DEC10assessmentData
on t.studentID = DEC10assessmentData.studentID and t.assessmentLookup = DEC10assessmentData.assessmentLookup
END
GO
を。ご覧のとおり、残念ながらvarchar値のキャストはたくさんありますが、1つの問題、つまりロックを除いては機能します。
私は断続的にユーザーに更新を実行できないと訴えています。これは、トリガーがテーブルをロックしているためです。これを避ける方法はありますか？そして、これがどうなっているのかをどうやって確認するのですか？トリガーが更新する列は更新されません。
私はErland Sommarskogのbeta_lockinfoを使用してデッドロック2つの更新から次のような出力が得られます。
rsctype locktype lstatus ownertype waittime spid waittype
KEY U WAIT TRANSACTION 2.192 LCK_M_U 69
DATABASE S grant STW 69
KEY X grant TRANSACTION 69
OBJECT IX grant TRANSACTION 69
PAGE IU grant TRANSACTION 69
PAGE IX grant TRANSACTION 69
KEY U WAIT TRANSACTION 2.188 LCK_M_U 89
DATABASE S grant STW 89
KEY X grant TRANSACTION 89
OBJECT IX grant TRANSACTION 89
PAGE IU grant TRANSACTION 89
PAGE IX grant TRANSACTION 89