Question

我正在使用SQL Server管理工作室2014.

我有2个表：国家和地点。

国家/地区有属性ID和其他列。

地点有一个属性ID，LocationNumber，CountryId。

在旧应用程序中，当您删除一个数据时，它为locationNumber保存了错误的数据。

所以我试图重置所有位置编号并重新插入。

假设我有这个数据集：

位置：

Id | LocationNumber | CountryId
-------------------------------
1  |        1       |     1
2  |        2       |     1
3  |        1       |     2
4  |        2       |     2

现在我想重置每个countryId的locationNumber，以便它成为这个数据集：

AWSTemplateFormatVersion: 2010-09-09
Parameters: 
  envParameter: 
    Type: String
    Default: dev
    AllowedValues: [ dev, test, qa, prod ]
    Description: Suffix to be added for names.
Resources:
  myApiUserPool:
    Type: "AWS::Cognito::UserPool"
    Properties:
      UserPoolName: !Sub myApiUserPool${envParameter}
  myApiUserPoolClient:
    Type: "AWS::Cognito::UserPoolClient"
    Properties:
        ClientName: !Sub myApiUserPoolClient${envParameter},
        GenerateSecret: False
        RefreshTokenValidity: 30
        UserPoolId: !Ref myApiUserPool
  myApiIdentityPool:
    Type: "AWS::Cognito::IdentityPool"
    Properties:
      IdentityPoolName: !Sub myApiIdentityPool${envParameter}
      AllowUnauthenticatedIdentities: False
      CognitoIdentityProviders:
        - ClientId: !Ref myApiUserPoolClient
          ProviderName: !GetAtt myApiUserPool.ProviderName
  cognitoUnauthRole:
    Type: 'AWS::IAM::Role'
    Properties:
      RoleName: !Sub Cognito_${myApiIdentityPool.Name}_Unauth_Role
      AssumeRolePolicyDocument:
        Version: 2012-10-17
        Statement:
          - Effect: Allow
            Principal:
              Federated: cognito-identity.amazonaws.com
            Action: [ 'sts:AssumeRole' ]
      Policies:
        - PolicyName: cognitounauth
          PolicyDocument:
            Version: '2012-10-17'
            Statement:
              - Effect: Allow
                Action:
                - mobileanalytics:PutEvents
                - cognito-sync:*
                Resource:
                - "*"
  cognitoAuthRole:
    Type: 'AWS::IAM::Role'
    Properties:
      RoleName: !Sub Cognito_${myApiIdentityPool.Name}_Auth_Role
      AssumeRolePolicyDocument:
        Version: 2012-10-17
        Statement:
          - Effect: Allow
            Principal:
              Federated: cognito-identity.amazonaws.com
            Action: [ 'sts:AssumeRole' ]
      Policies:
        - PolicyName: cognitoauth
          PolicyDocument:
            Version: '2012-10-17'
            Statement:
              - Effect: Allow
                Action:
                - mobileanalytics:PutEvents
                - cognito-sync:*
                - execute-api:*
                Resource:
                - "*"
  myApiIdentityPoolRoleAttachment:
    DependsOn: [ myApiIdentityPool, cognitoUnauthRole, cognitoAuthRole ]
    Type: "AWS::Cognito::IdentityPoolRoleAttachment"
    Properties:
      IdentityPoolId: !Ref myApiIdentityPool
      Roles: 
        authenticated: !GetAtt cognitoAuthRole.Arn
        unauthenticated: !GetAtt cognitoUnauthRole.Arn
Outputs:
 userPool:
    Description: "User pool ID"
    Value: !Ref myApiUserPool
 identityPool:
    Description: "Identity pool ID"
    Value: !Ref myApiIdentityPool
 ClientId: 
    Description: "Client id for the user pool appclient"
    Value: !Ref myApiUserPoolClient

应该使用查询而不是增量属性。

谢谢布伦特

Answer 1

您可以尝试此查询：

Select Id, ROW_NUMBER() OVER(PARTITION BY CountryId ORDER BY LocationNumber ) 
AS LocationNumber, CountryId FROM Locations

每个不同列值的重置计数后的自动编号

1 个答案: