Sélection de l'échantillon de tous les utilisateurs et mise à jour d'une valeur de champ de l'échantillon

J'ai une table appelée tblItemReviewItems et je dois choisir un échantillon de 10% de ItemReviewId pour chaque UserId à une date donnée. Voici le script de table et certaines données de l'échantillon:Sélection de l'échantillon de tous les utilisateurs et mise à jour d'une valeur de champ de l'échantillon

CREATE TABLE tblItemReviewItems(
    ItemReviewId INTEGER NOT NULL PRIMARY KEY 
    ,UserId  VARCHAR(50) NOT NULL 
    ,ReviewDate DATE NOT NULL 
    ,Deleted  VARCHAR(10) NOT NULL 
    ,Audited  VARCHAR(10) NOT NULL 
); 
INSERT INTO tblItemReviewItems(ItemReviewId,UserId,ReviewDate,Deleted,Audited) VALUES (16425282,'jdoe1','7/1/2017','Yes','No'); 
INSERT INTO tblItemReviewItems(ItemReviewId,UserId,ReviewDate,Deleted,Audited) VALUES (16425291,'jdoe1','7/1/2017','Yes','No'); 
INSERT INTO tblItemReviewItems(ItemReviewId,UserId,ReviewDate,Deleted,Audited) VALUES (16425299,'jdoe1','7/1/2017','Yes','No'); 
INSERT INTO tblItemReviewItems(ItemReviewId,UserId,ReviewDate,Deleted,Audited) VALUES (16425304,'jdoe1','7/1/2017','Yes','No'); 
INSERT INTO tblItemReviewItems(ItemReviewId,UserId,ReviewDate,Deleted,Audited) VALUES (16425311,'jdoe1','7/1/2017','Yes','No'); 
INSERT INTO tblItemReviewItems(ItemReviewId,UserId,ReviewDate,Deleted,Audited) VALUES (16425324,'jdoe1','7/1/2017','Yes','No'); 
INSERT INTO tblItemReviewItems(ItemReviewId,UserId,ReviewDate,Deleted,Audited) VALUES (16425333,'jdoe1','7/1/2017','Yes','No'); 
INSERT INTO tblItemReviewItems(ItemReviewId,UserId,ReviewDate,Deleted,Audited) VALUES (16425358,'jdoe1','7/1/2017','Yes','No'); 
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INSERT INTO tblItemReviewItems(ItemReviewId,UserId,ReviewDate,Deleted,Audited) VALUES (16425351,'jdoe2','7/1/2017','Yes','No'); 
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INSERT INTO tblItemReviewItems(ItemReviewId,UserId,ReviewDate,Deleted,Audited) VALUES (16427532,'jdoe3','7/1/2017','No','No'); 
INSERT INTO tblItemReviewItems(ItemReviewId,UserId,ReviewDate,Deleted,Audited) VALUES (16429660,'jdoe3','7/1/2017','No','No'); 
INSERT INTO tblItemReviewItems(ItemReviewId,UserId,ReviewDate,Deleted,Audited) VALUES (16429819,'jdoe3','7/1/2017','No','No'); 
INSERT INTO tblItemReviewItems(ItemReviewId,UserId,ReviewDate,Deleted,Audited) VALUES (16430204,'jdoe3','7/1/2017','No','No'); 
INSERT INTO tblItemReviewItems(ItemReviewId,UserId,ReviewDate,Deleted,Audited) VALUES (16431287,'jdoe3','7/1/2017','No','No'); 
INSERT INTO tblItemReviewItems(ItemReviewId,UserId,ReviewDate,Deleted,Audited) VALUES (16432004,'jdoe3','7/1/2017','No','No'); 
INSERT INTO tblItemReviewItems(ItemReviewId,UserId,ReviewDate,Deleted,Audited) VALUES (16434233,'jdoe3','7/1/2017','No','No'); 
INSERT INTO tblItemReviewItems(ItemReviewId,UserId,ReviewDate,Deleted,Audited) VALUES (16434999,'jdoe3','7/1/2017','No','No'); 
INSERT INTO tblItemReviewItems(ItemReviewId,UserId,ReviewDate,Deleted,Audited) VALUES (16435056,'jdoe3','7/1/2017','No','No'); 
INSERT INTO tblItemReviewItems(ItemReviewId,UserId,ReviewDate,Deleted,Audited) VALUES (16435798,'jdoe3','7/1/2017','No','No'); 



ALTER PROC [dbo].[spPickSample] 
AS 
BEGIN 
    DECLARE @Nos INT = (SELECT COUNT (*) FROM tblItemReviewItems WHERE Deleted='No' and UserId='jdoe1') 
    DECLARE @Yes INT = (SELECT COUNT (*) FROM tblItemReviewItems WHERE Deleted='Yes' and UserId='jdoe1') 
    DECLARE @Samplepct FLOAT =(.05*(@Nos + @Yes))/@Nos*100 
    DECLARE @Percentage AS INT = @Samplepct 
    SELECT 
     TOP (@Percentage) PERCENT * 
    FROM 
     tblItemReviewItems 
    WHERE 
     Deleted='No' AND UserId='jdoe1' 
    ORDER BY 
     NEWID() 
END

5% de la population devrait provenir Deleted (No) et 5% de la population devrait provenir Deleted (Oui).

Population:

+-------------+----+-----+-------------+ 
| UserId | No | Yes | Grand Total | 
+-------------+----+-----+-------------+ 
| jdoe1  | 16 | 44 |   60 | 
| jdoe2  | 19 | 41 |   60 | 
| jdoe3  | 11 | 49 |   60 | 
| Grand Total | 46 | 134 |   180 | 
+-------------+----+-----+-------------+

échantillon cible:

+-------------+----+-----+-------------+ 
| UserId | No | Yes | Grand Total | 
+-------------+----+-----+-------------+ 
| jdoe1  | 3 | 3 |   6 | 
| jdoe2  | 3 | 3 |   6 | 
| jdoe3  | 3 | 3 |   6 | 
| Grand Total | 9 | 9 |   18 | 
+-------------+----+-----+-------------+

C'est ce que je suis en train d'obtenir:

+--------------+--------+------------+---------+---------+ 
| ItemReviewId | UserId | ReviewDate | Deleted | Audited | 
+--------------+--------+------------+---------+---------+ 
|  16427072 | jdoe1 | 7/1/2017 | No  | Check | 
|  16428359 | jdoe1 | 7/1/2017 | No  | Check | 
|  16429003 | jdoe1 | 7/1/2017 | No  | Check | 
|  16429222 | jdoe1 | 7/1/2017 | Yes  | Check | 
|  16428665 | jdoe1 | 7/1/2017 | Yes  | Check | 
|  16425311 | jdoe1 | 7/1/2017 | Yes  | Check | 
|  16426266 | jdoe2 | 7/1/2017 | No  | Check | 
|  16432521 | jdoe2 | 7/1/2017 | No  | Check | 
|  16435694 | jdoe2 | 7/1/2017 | No  | Check | 
|  16427379 | jdoe2 | 7/1/2017 | Yes  | Check | 
|  16427568 | jdoe2 | 7/1/2017 | Yes  | Check | 
|  16427877 | jdoe2 | 7/1/2017 | Yes  | Check | 
|  16427532 | jdoe3 | 7/1/2017 | No  | Check | 
|  16435798 | jdoe3 | 7/1/2017 | No  | Check | 
|  16429660 | jdoe3 | 7/1/2017 | No  | Check | 
|  16430140 | jdoe3 | 7/1/2017 | Yes  | Check | 
|  16430339 | jdoe3 | 7/1/2017 | Yes  | Check | 
|  16428937 | jdoe3 | 7/1/2017 | Yes  | Check | 
+--------------+--------+------------+---------+---------+

Voici ce que j'ai essayé:

ALTER PROC [dbo].[PickSample] 
(
    @ReviewDate AS DATETIME 
    ,@UserId AS NVARCHAR(50) 
) 
AS 
BEGIN 
    DECLARE @tempDashboard table 
    (
    ItemReviewId VarChar(50) 
    ,UserId VarChar(50) 
    ,ReviewDate Datetime 
    ,Deleted varchar(10) 
    ,Audited varchar(10) 
    ) 

    DECLARE @Nos INT = (SELECT COUNT (*) FROM tblItemReviewItems WHERE Deleted='No' AND [email protected] AND [email protected]) 
    DECLARE @Yes INT = (SELECT COUNT (*) FROM tblItemReviewItems WHERE Deleted='Yes' AND [email protected] AND [email protected]) 
    DECLARE @Samplepct FLOAT =(.05*(@Nos + @Yes))/@Nos*100 

    DECLARE @Percentage AS INT = @Samplepct 

    INSERT INTO @tempDashboard (ItemReviewId, UserId, ReviewDate, Deleted, Audited) 
    SELECT 
     TOP (@Percentage) PERCENT ItemReviewId, UserId, ReviewDate, Deleted, Audited 
    FROM 
     tblItemReviewItems 
    WHERE 
     Deleted='No' AND [email protected] AND [email protected] 
    ORDER BY 
     NEWID() 

    DECLARE @Nos2 INT = (SELECT COUNT (*) FROM tblItemReviewItems WHERE Deleted='No' AND [email protected] AND [email protected]) 
    DECLARE @Yes2 INT = (SELECT COUNT (*) FROM tblItemReviewItems WHERE Deleted='Yes' AND [email protected] AND [email protected]) 
    DECLARE @Samplepct2 FLOAT =(.05*(@Nos2 + @Yes2))/@Yes2*100 

    DECLARE @Percentage2 AS INT = @Samplepct2 
    INSERT INTO @tempDashboard (ItemReviewId, UserId, ReviewDate, Deleted, Audited) 
    SELECT 
     TOP (@Percentage2) PERCENT ItemReviewId, UserId, ReviewDate, Deleted, Audited 
    FROM 
     tblItemReviewItems 
    WHERE 
     Deleted='Yes' AND [email protected] AND [email protected] 
    ORDER BY 
     NEWID() 
    UPDATE a 
    SET Audited='Check' 
    FROM tblItemReviewItems AS a 
     INNER JOIN @tempDashboard AS b 
     ON b.ItemReviewId=a.ItemReviewId 
END

Je dois exécuter la procédure stockée pour chaque utilisateur. Généralement, il y a environ 200 utilisateurs par jour. Je vais donc devoir exécuter la procédure stockée 200 fois par jour. Comment puis-je y parvenir en une seule fois?

Source

2017-07-15 Lone Rider

Avez-vous une clé primaire sur tblItemReviewItems? – Jayvee

@Jayvee La table a une clé primaire "ItemReviewId". –

Ok, vous pouvez ensuite sélectionner top @percentage pour cent ItemReviewedId dans une table temporaire ou une variable de table ou cte et l'utiliser pour sélectionner les éléments et les mettre à jour – Jayvee

quelque chose comme ceci:

ALTER PROC [dbo].[spPickSample] 
AS 
BEGIN 
    DECLARE @Nos INT = (SELECT COUNT (*) FROM tblItemReviewItems WHERE Deleted='No' and UserId='jdoe1') 
    DECLARE @Yes INT = (SELECT COUNT (*) FROM tblItemReviewItems WHERE Deleted='Yes' and UserId='jdoe1') 
    DECLARE @Samplepct FLOAT =(.05*(@Nos + @Yes))/@Nos*100 
    DECLARE @Percentage AS INT = @Samplepct 
    DECLARE @temptable table (ItemReviewId nvarchar(50)) 
    INSERT into @temptable 
    SELECT 
     TOP (@Percentage) PERCENT ItemReviewId 
    FROM 
     tblItemReviewItems 
    WHERE 
     Deleted='No' AND UserId='jdoe1' 

    Update t set Audited="Check" 
    from tblItemReviewItems t 
    where ItemReviewId in (Select ItemReviewId from @temptable) 

    Select * from tblItemReviewItems 
    where ItemReviewId in (Select ItemReviewId from @temptable) 

END

supposons que vos utilisateurs sont dans un tableau intitulé « [les utilisateurs] » vous pouvez boucle un curseur de cette manière:

DECLARE @userid nvarchar(50) 
DECLARE db_cursor CURSOR FOR 
SELECT userid 
FROM [users] 

OPEN db_cursor 
FETCH NEXT FROM db_cursor INTO @userid 

WHILE @@FETCH_STATUS = 0 
BEGIN 
    exec dbo.PickSample '2017-07-01',@userid 
     FETCH NEXT FROM db_cursor INTO @userid 
END

S'il vous plaît noter que je Hardcoded le reviewdate mais vous obtenez l'image dont vous avez besoin pour l'adapter à vos spécificités

Source

2017-07-15 12:39:00 Jayvee

Voici comment procéder: Sélectionnez les lignes dans une table temporaire. Si vous avez une clé primaire, il vous suffit de sélectionner le primaire. Si vous n'avez pas de clé primaire, sélectionnez suffisamment de colonnes pour que la combinaison soit unique. Une fois que vous avez les lignes nécessaires dans la table temporaire, joignez-vous à cette table temporaire et mettez à jour ces lignes dans la table d'origine avec les valeurs souhaitées. Si vous n'avez pas l'intention de faire quoi que ce soit à la suite des lignes que vous avez sélectionnées, vous pouvez réellement mettre à jour les lignes après avoir fait un select avec la bonne clause where.

Source

2017-07-15 11:22:35 ArunGeorge

Sélection de l'échantillon de tous les utilisateurs et mise à jour d'une valeur de champ de l'échantillon

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