Question

我在数据库中有电话号码字段。它已有数据。

我想将手机号码格式更改为“XXX-XXX-XXXX” 当前数据库没有任何电话格式。

因此可能存在垃圾数据。我已经对新记录应用了验证，但现在我也要更改现有数据。

我是否有任何具体方法可以更改现有数据。并使所有电话号码都遵循这种格式。

请建议。

Answer 1

创建功能以删除非数字数据并进行格式化

CREATE FUNCTION [UDF_STRIP_NONNUMERIC_DATA](@str VARCHAR(8000))
RETURNS VARCHAR(8000)
AS
  BEGIN
      WHILE Patindex('%[^0-9]%', @str) > 0
        BEGIN
            SET @str = Stuff(@str, Patindex('%[^0-9]%', @str), 1, '')
        END

      RETURN @str
  END

您可以使用STUFF功能在-号码之间插入phone

Select left(Stuff(Stuff(dbo.[UDF_STRIP_NONNUMERIC_DATA](Phone),4,0,'-'),8,0,'-'),12)
From yourtable

如果您使用的是SQL SERVER 2012+，可以使用FORMAT功能（感谢LukStorms，他在评论中提到了它）

SELECT Format(Cast(dbo.[Udf_strip_nonnumeric_data](Phone) AS BIGINT), '###-###-####')
FROM   yourtable

更新

Update yourtable 
   SET phone = left(Stuff(Stuff(dbo.[UDF_STRIP_NONNUMERIC_DATA](Phone),4,0,'-'),8,0,'-'),12)

<强>演示

declare @str  varchar(100)= '9225-123-4567'

select left(Stuff(Stuff(dbo.[UDF_STRIP_NONNUMERIC_DATA](@str),4,0,'-'),8,0,'-'),12)

结果： 922-512-3456

Answer 2

public ArrayList<Invoice> getInvoices() {
    readPersons();
    readCustomers();
    readProducts();
    Scanner sc = null;

    try {
        sc = new Scanner(new File("data/Invoices.dat"));
        sc.nextLine(); 

        while (sc.hasNextLine()) {
            ArrayList<Product> product = new ArrayList<Product>();
            String line = sc.nextLine(); 
            String data[] = line.split(";"); 
            String invoiceCode = data[0].trim();
            String customerCode = data[1].trim();
            Customer customer = null;
            for(Customer aCustomer: customerList) {
                if (customerCode.equals(aCustomer.getCustomerCode())) {
                    customer = aCustomer;
                    break;
                }
            }
            String personCode = data[2].trim();
            Person person = null;
            for(Person aPerson: personList) {
                if (personCode.equals(aPerson.getPersonCode())) {
                    person = aPerson;
                    break;
                }
            }
            String invoiceDate = data[3];
            String products[] = data[4].split(",");
                for (int i = 0; i < products.length; i++) {
                    String productData[] = products[i].split(":");
                    for(Product aProduct: productList) {
                        if (aProduct.getProductCode().equals(productData[0])) {
                            aProduct.setInvoiceDate(this.getDateTime(invoiceDate));
                            if (productData.length == 1) {
                                aProduct.setQuantity(1);
                                product.add(aProduct);
                            } else if (productData.length == 2) {
                                aProduct.setQuantity(Integer.parseInt(productData[1]));
                                product.add(aProduct);
                            } else if (productData.length == 3) {
                                aProduct.setQuantity(Integer.parseInt(productData[1]));
                                for(Product anotherProduct: product) {
                                    if (anotherProduct.getProductCode() == productData[2]) {
                                        aProduct.setParkingPassCount(anotherProduct.getQuantity());
                                        break;
                                    }
                                }
                                product.add(aProduct);
                            }
                            break;
                        }
                    }
                }

            // Creates an Invoice object
            Invoice invoice = new Invoice(invoiceCode, invoiceDate, customer, person, product);

            // Adds the Invoice object into Invoice ArrayList
            invoiceList.add(invoice);   

        }
        sc.close();
        return invoiceList;
    } catch (FileNotFoundException e) {
        e.printStackTrace();
        return null;
    }
}
public DateTime getDateTime(String Date){
    DateTimeFormatter formatter = DateTimeFormat.forPattern("yyyy-MM-dd");
    DateTime dateTime = formatter.parseDateTime(Date);
    return dateTime;
}

Answer 3

好的，要替换所有非数字字符，请查看this。

以下是一个示例脚本（从该链接复制）以向您展示它是如何工作的（您需要修改它以适合您的表名和列名：

-- Step 1: creates table to use to hold every char in every phone number
if object_id('dbo.tally') is not null drop table dbo.tally   
   select top 10000 --change to fit max length of phone number
     identity(int,1,1) as n
   into dbo.tally
   from master.dbo.syscolumns sc1,
        master.dbo.syscolumns sc2

-- add pk to maximize performance
  alter table dbo.tally
     add constraint pk_tally_n 
        primary key clustered (n) with fillfactor = 100

-- Step 2: Create temporary table holding three bad phone numbers  
 declare @phonetable table 
   (uniqueid int identity(1,1), 
   phone_number varchar(500)) 
   insert into @phonetable (phone_number) 
   select '01234-567-890' union 
   select '012345 6789ext' union 
   select 'n/a' union select '...12345.....';

 -- Step 3: identify, for every character, whether it is a number or not,
           and remove the non-numeric ones
 with cte (uniqueid, phone_number, goodchar, badchar) as
 ( select uniqueid, phone_number, 
        case when substring(phone_number,N,1) not like '%[^0-9]%' 
             then substring(phone_number,N,1) end as goodchar, 
        case when substring(phone_number,N,1) like '%[^0-9]%' 
             then substring(phone_number,N,1) end as badchar
   from @phonetable , Tally  
   where phone_number like '%[^0-9]%' and N <= len(phone_number) )
   select distinct phone_number, 
        isnull( stuff ( 
                  ( SELECT '' + goodchar 
                FROM cte t1 
        where t1.UniqueID = t2.UniqueID 
          FOR XML PATH ( '' ) ) , 1 , 0 , '' ) ,'')  
                        as clean_phone_number from cte t2

显示带格式的数字，只需提取相应的部分，然后用破折号重新连接它们。

Select case len(phone) 
       When 10  then left(phone, 3) + '-' + 
                     substring(phone, 4,3) + '-' + 
                     substring(phone, 7,4)`
       When 7 then left(phone, 3) + '-' + 
                   substring(phone, 4,4)
       Else '' end

创建计算列

Alter table Add Column FormattedPhone as 
  case len(phone) 
       When 10  then left(phone, 3) + '-' + 
                     substring(phone, 4,3) + '-' + 
                     substring(phone, 7,4)`
       When 7 then left(phone, 3) + '-' + 
                   substring(phone, 4,4)
       Else '' end

Answer 4

如果你不介意UDF

dict

返回

Select [dbo].[udf-Str-Format-Phone]('334)789-4532')

UDF

334-789-4532

更改电话号码格式

4 个答案: