मैंने एक SQL सर्वर क्वेरी लिखी है जो एक क्षेत्र पर विभाजन के बाद अनुक्रमिक संख्या रखने के लिए रिकॉर्ड को अपडेट करती है। जब मैं इसे एक सेलेक्ट स्टेटमेंट के रूप में चलाता हूं, तो सब कुछ बहुत अच्छा लगता है:
DECLARE @RunDetailID INT = 448
DECLARE @JobDetailID INT
SELECT @JobDetailID = [JobDetailID] FROM [RunDetails] WHERE [RunDetailID] = @RunDetailID
SELECT
[OrderedRecords].[NewSeq9],
RIGHT([OrderedRecords].[NewSeq9], 4)
FROM
(
SELECT
[Records].*,
[Records].[SortField] + RIGHT('0000' + CAST(ROW_NUMBER() OVER(PARTITION BY [Records].[SortField] ORDER BY [Records].[RunDetailID], [Records].[SortField], [Records].[PieceID]) AS VARCHAR), 4) NewSeq9
FROM
(
SELECT
[MRDFStorageID],
[RunDetailID],
[SortField],
[PieceID],
[Seq9],
[BallotType]
FROM
[MRDFStorage]
JOIN [BallotStyles] ON [MRDFStorage].[SortField] = [BallotStyles].[Style] and [BallotStyles].[JobDetailID] = @JobDetailID
WHERE
[RunDetailID] IN (SELECT [RunDetailID] FROM [RunDetails] WHERE [JobDetailID] = @JobDetailID AND [RunStatusID] <> 0)
) Records
) OrderedRecords
JOIN MRDFStorage ON [OrderedRecords].[MRDFStorageID] = [MRDFStorage].[MRDFStorageID]
WHERE
[MRDFStorage].[RunDetailID] = @RunDetailID
हालाँकि, जब मैं क्वेरी को UPDATE कमांड में बनाता हूं, तो यह संख्याओं को छोड़ना शुरू कर देता है:
DECLARE @RunDetailID INT = 448
DECLARE @JobDetailID INT
SELECT @JobDetailID = [JobDetailID] FROM [RunDetails] WHERE [RunDetailID] = @RunDetailID
UPDATE
[MRDFStorage]
SET
[Seq9] = [OrderedRecords].[NewSeq9],
[Overlay1] = [OrderedRecords].[NewSeq9],
[Overlay10] = RIGHT([OrderedRecords].[NewSeq9], 4)
FROM
(
SELECT
[Records].*,
[Records].[SortField] + RIGHT('0000' + CAST(ROW_NUMBER() OVER(PARTITION BY [Records].[SortField] ORDER BY [Records].[RunDetailID], [Records].[SortField], [Records].[PieceID]) AS VARCHAR), 4) NewSeq9
FROM
(
SELECT
[MRDFStorageID],
[RunDetailID],
[SortField],
[PieceID],
[Seq9],
[BallotType],
CAST([SpecialProcessing] as Int) StartCount
FROM
[MRDFStorage]
JOIN [BallotStyles] ON [MRDFStorage].[SortField] = [BallotStyles].[Style] and [BallotStyles].[JobDetailID] = @JobDetailID
WHERE
[RunDetailID] IN (SELECT [RunDetailID] FROM [RunDetails] WHERE [JobDetailID] = @JobDetailID AND [RunStatusID] <> 0)
) Records
) OrderedRecords
JOIN MRDFStorage ON [OrderedRecords].[MRDFStorageID] = [MRDFStorage].[MRDFStorageID]
WHERE
[MRDFStorage].[RunDetailID] = @RunDetailID
मैंने विशेष रूप से इस भाग पर ध्यान देने की कोशिश की है:
[Records].[SortField] + RIGHT('0000' + CAST(ROW_NUMBER() OVER(PARTITION BY [Records].[SortField] ORDER BY [Records].[RunDetailID], [Records].[SortField], [Records].[PieceID]) AS VARCHAR), 4) NewSeq9
क्या मैं इससे अनजान हूँ इसका कोई दुष्प्रभाव है?
टेबल परिभाषाओं के साथ अद्यतन
CREATE TABLE [dbo].[MRDFStorage] (
[MRDFStorageID] INT IDENTITY (1, 1) NOT NULL,
[RunDetailID] INT NOT NULL,
[PieceID] VARCHAR (15) NULL,
[SortField] VARCHAR (20) NULL,
[BallotType] VARCHAR (100) NULL,
[Seq9] VARCHAR (15) NULL,
CONSTRAINT [PK_MRDFStorage] PRIMARY KEY CLUSTERED ([MRDFStorageID] ASC),
CONSTRAINT [FK_MRDFStorage_RunDetails] FOREIGN KEY ([RunDetailID]) REFERENCES [dbo].[RunDetails] ([RunDetailID])
);
CREATE TABLE [dbo].[BallotStyles] (
[BallotStyleID] INT IDENTITY (1, 1) NOT NULL,
[JobDetailID] INT NOT NULL,
[Style] VARCHAR (20) NOT NULL,
CONSTRAINT [PK_BallotStyles] PRIMARY KEY CLUSTERED ([BallotStyleID] ASC)
);
CREATE TABLE [dbo].[RunDetails] (
[RunDetailID] INT IDENTITY (1, 1) NOT NULL,
[JobDetailID] INT NOT NULL,
CONSTRAINT [PK_RunDetails] PRIMARY KEY CLUSTERED ([RunDetailID] ASC)
);
UPDATE [MRDFStorage]
के साथUPDATE m
औरJOIN MRDFStorage ON ...
साथJOIN MRDFStorage m ON ...
मुझे डर है कि अद्यतन हो सकता है कुछ पंक्तियाँ एक बार से अधिक अद्यतन करने हूँ। इस ब्लॉग पोस्ट को पढ़ें: आइए अपडाउन करें FROM!