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我想插入多个表，即Customer, Account, AccountTransactions

编辑

  • Entity - Customer一对一
  • Customer - Account被映射为一对一
  • Account - AccountTransactions映射为一对多

Entity(EntityId, EntityType)EntityId 主键自动递增

Customer(CustomerId, FName, LName) CustomerId = EntityId 主键

Account(AccountId, AccountNo, CustomerId) AccountId PK，CustomerId FK

AccountTransactions(TransactionId, PaymentDate, CurrentBalance, AccountId)TransactionId PK，AccountId FK

我的 XML 是：

<CustomerList xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema" >
       <Customer>
              <CustomerId/>
              <CustomerName>Abhishek</CustomerName>
              <AccountId/>
              <AccountNumber>eba5d378-b</AccountNumber>
              <Transactions>
                     <Transaction>
                <TransactionId/>
                            <PaymentDate>2/2/2012</PaymentDate>
                            <Amount>500</Amount>
                     </Transaction>
                     <Transaction>
                <TransactionId/>
                            <PaymentDate>2/2/2012</PaymentDate>
                            <Amount>500</Amount>
                     </Transaction>
              </Transactions>
          </Customer>
       <Customer>
              <CustomerId/>
              <CustomerName>Yash</CustomerName>
              <AccountId/>
              <AccountNumber>A101202</AccountNumber>
              <Transactions>
                     <Transaction>
                <TransactionId/>
                            <PaymentDate>2/2/2012</PaymentDate>
                            <Amount>500</Amount>
                     </Transaction>
                     <Transaction>
                <TransactionId/>
                            <PaymentDate>2/2/2012</PaymentDate>
                            <Amount>500</Amount>
                     </Transaction>
              </Transactions>
       </Customer>
</CustomerList>

我想在 xml 中为每个客户插入Customer, Account, Transaction表中，并在插入客户时将其 id 保存回 xml 并在Account表中用作外键

我可以看到唯一的方法是使用嵌套游标或嵌套 while 循环。有没有更好的方法？

4

2 回答 2

2

假设您有适当的表格 - 您绝对可以执行迭代方法，而不会出现任何凌乱的 kludgy 光标！

尝试这样的事情 - 现在这将处理客户和帐户，但您也绝对可以将其扩展到交易。

declare @input XML = '... your XML here .....';

CREATE TABLE #CustAcct (CustomerName VARCHAR(50), CustomerID INT, AcctNumber VARCHAR(50), AcctID INT);

-- first extract customer and account into from the XML, using a common table expression    
WITH CustomersAndAccounts AS
(
   SELECT
       CustomerName = CL.Cust.value('(CustomerName)[1]', 'varchar(50)'),
       AcctNumber = CL.Cust.value('(AccountNumber)[1]', 'varchar(50)')
   FROM 
       @input.nodes('/CustomerList/Customer') CL(Cust)
)
INSERT INTO #CustAcct(CustomerName, AcctNumber)
    SELECT CustomerName, AcctNUmber
    FROM CustomersAndAccounts

-- insert customers into 'Customer' table    
INSERT INTO Customer(CustomerName)
    SELECT CustomerName
    FROM #CustAcct

-- update the temporary working table with the appropriate ID's from the 'Customer' table    
UPDATE #CustAcct
SET CustomerID = c.CustomerID
FROM Customer c
WHERE #CustAcct.CustomerName = c.CustomerName

-- insert values into 'Account' table from the working table   
INSERT INTO Account(CustomerID, AccountNumber)
    SELECT CustomerID, AcctNumber
    FROM #CustAcct

-- update the working table from the values inserted
UPDATE #CustAcct
SET AcctID = a.AccountID
FROM Account a
WHERE #CustAcct.CustomerID = a.CustomerID AND #CustAcct.AcctNumber = a.AccountNumber

SELECT * FROM #CustAcct

现在在下一步中，您可以解析每个客户/账户对的交易并将其插入到适当的表中。

于 2012-09-13T20:13:56.700 回答
0

您还可以使用 SQLXML Bulkload 组件执行此操作：

如何使用 XML 批量加载组件将 XML 导入 SQL Server
http://support.microsoft.com/kb/316005

于 2012-09-13T23:12:17.157 回答