Question

我有一些用mysql（我认为）写的代码来返回有效的邮政编码，我试图将代码转换为Firebird SQL但我收到错误。暂时停在CASE部分。我最终想要发生的是它删除所有无效的邮政编码。所以如果你知道另一个有很大帮助的解决方案：

 SET TERM ^ ;

 CREATE PROCEDURE ValidatePostCode ( PostCode VARCHAR(8) ) 
 RETURNS ( ValidPC CHAR(1) )
 AS 

 BEGIN
 RETURN    CASE
        -- Special case GIR 0AA
        WHEN PostCode LIKE 'GIR 0AA' THEN i=1
        -- Current postcode prefixes
        WHEN    LEFT(Postcode, 2) NOT IN ('AB', 'AL', 'BA', 'BB', 'BD', 'BH', 'BL', 'BN', 'BR', 'BS', 'BT', 'CA', 'CB', 'CF', 'CH', 'CM', 'CO', 'CR', 'CT', 'CV', 'CW', 'DA', 'DD', 'DE', 'DG', 'DH', 'DL', 'DN', 'DT', 'DY', 'EC', 'EH', 'EN', 'EX', 'FK', 'FY', 'GL', 'GU', 'GY', 'HA', 'HD', 'HG', 'HP', 'HR', 'HS', 'HU', 'HX', 'IG', 'IM', 'IP', 'IV', 'JE', 'KA', 'KT', 'KW', 'KY', 'L', 'LA', 'LD', 'LE', 'LL', 'LN', 'LS', 'LU', 'ME', 'MK', 'ML', 'NE', 'NG', 'NN', 'NP', 'NR', 'NW', 'OL', 'OX', 'PA', 'PE', 'PH', 'PL', 'PO', 'PR', 'RG', 'RH', 'RM', 'SA', 'SE', 'SG', 'SK', 'SL', 'SM', 'SN', 'SO', 'SP', 'SR', 'SS', 'ST', 'SW', 'SY', 'TA', 'TD', 'TF', 'TN', 'TQ', 'TR', 'TS', 'TW', 'UB', 'WA', 'WC', 'WD', 'WF', 'WN', 'WR', 'WS', 'WV', 'YO', 'ZE')
            OR WHEN LEFT(Postcode, 1) NOT IN ('B', 'E', 'G', 'L', 'N', 'S', 'W') THEN 0
        -- AANN NAA
        WHEN PostCode LIKE '[ABCDEFGHIJKLMNOPRSTUWYZ][ABCDEFGHKLMNOPQRSTUVWXY][0123456789][0123456789] [0123456789][ABDEFGHJLNPQRSTUWXYZ][ABDEFGHJLNPQRSTUWXYZ]' THEN 1
        -- AANA NAA
        WHEN PostCode LIKE '[ABCDEFGHIJKLMNOPRSTUWYZ][ABCDEFGHKLMNOPQRSTUVWXY][0123456789][ABEHMNPRVWXY] [0123456789][ABDEFGHJLNPQRSTUWXYZ][ABDEFGHJLNPQRSTUWXYZ]' THEN 1
        -- ANN NAA
        WHEN PostCode LIKE '[ABCDEFGHIJKLMNOPRSTUWYZ][0123456789][0123456789] [0123456789][ABDEFGHJLNPQRSTUWXYZ][ABDEFGHJLNPQRSTUWXYZ]' THEN 1
        -- AAN NAA
        WHEN PostCode LIKE '[ABCDEFGHIJKLMNOPRSTUWYZ][ABCDEFGHKLMNOPQRSTUVWXY][0123456789] [0123456789][ABDEFGHJLNPQRSTUWXYZ][ABDEFGHJLNPQRSTUWXYZ]' THEN 1
        -- ANA NAA
        WHEN PostCode LIKE '[ABCDEFGHIJKLMNOPRSTUWYZ][0123456789][ABCDEFGHJKSTUW] [0123456789][ABDEFGHJLNPQRSTUWXYZ][ABDEFGHJLNPQRSTUWXYZ]' THEN 1
        -- AN NAA
        WHEN PostCode LIKE '[ABCDEFGHIJKLMNOPRSTUWYZ][0123456789] [0123456789][ABDEFGHJLNPQRSTUWXYZ][ABDEFGHJLNPQRSTUWXYZ]' THEN 1
        -- Not a valid postcode
        ELSE 0
    END

 END^

 SET TERM ; ^

Answer 1

由于有用的评论，我最终做了以下事情：

 select postcode from CUSTOMER_ADDRESSES
 where LEFT(postcode, 2) NOT IN ('AB', 'AL', 'BA', 'BB', 'BD', 'BH', 'BL', 'BN',        'BR',    'BS', 'BT', 'CA', 'CB', 'CF', 'CH', 'CM', 'CO', 'CR', 'CT', 'CV', 'CW', 'DA', 'DD', 'DE', 'DG', 'DH', 'DL', 'DN', 'DT', 'DY', 'EC', 'EH', 'EN', 'EX', 'FK', 'FY', 'GL', 'GU', 'GY', 'HA', 'HD', 'HG', 'HP', 'HR', 'HS', 'HU', 'HX', 'IG', 'IM', 'IP', 'IV', 'JE', 'KA', 'KT', 'KW', 'KY', 'L', 'LA', 'LD', 'LE', 'LL', 'LN', 'LS', 'LU', 'ME', 'MK', 'ML', 'NE', 'NG', 'NN', 'NP', 'NR', 'NW', 'OL', 'OX', 'PA', 'PE', 'PH', 'PL', 'PO', 'PR', 'RG', 'RH', 'RM', 'SA', 'SE', 'SG', 'SK', 'SL', 'SM', 'SN', 'SO', 'SP', 'SR', 'SS', 'ST', 'SW', 'SY', 'TA', 'TD', 'TF', 'TN', 'TQ', 'TR', 'TS', 'TW', 'UB', 'WA', 'WC', 'WD', 'WF', 'WN', 'WR', 'WS', 'WV', 'YO', 'ZE') OR LEFT(postcode, 1) NOT IN ('B', 'E', 'G', 'L', 'N', 'S', 'W')
 and postcode not SIMILAR TO '[ABCDEFGHIJKLMNOPRSTUWYZ][ABCDEFGHKLMNOPQRSTUVWXY][0123456789][0123456789][0123456789][ABDEFGHJLNPQRSTUWXYZ][ABDEFGHJLNPQRSTUWXYZ]'
 and postcode not SIMILAR TO '[ABCDEFGHIJKLMNOPRSTUWYZ][ABCDEFGHKLMNOPQRSTUVWXY][0123456789][ABEHMNPRVWXY][0123456789][ABDEFGHJLNPQRSTUWXYZ][ABDEFGHJLNPQRSTUWXYZ]'
 and postcode not SIMILAR TO '[ABCDEFGHIJKLMNOPRSTUWYZ][0123456789][0123456789][0123456789][ABDEFGHJLNPQRSTUWXYZ][ABDEFGHJLNPQRSTUWXYZ]'
 and postcode not SIMILAR TO '[ABCDEFGHIJKLMNOPRSTUWYZ][ABCDEFGHKLMNOPQRSTUVWXY][0123456789][0123456789][ABDEFGHJLNPQRSTUWXYZ][ABDEFGHJLNPQRSTUWXYZ]'
 and postcode not SIMILAR TO '[ABCDEFGHIJKLMNOPRSTUWYZ][0123456789][ABCDEFGHJKSTUW][0123456789][ABDEFGHJLNPQRSTUWXYZ][ABDEFGHJLNPQRSTUWXYZ]'
 and postcode not SIMILAR TO '[ABCDEFGHIJKLMNOPRSTUWYZ][0123456789][0123456789][ABDEFGHJLNPQRSTUWXYZ][ABDEFGHJLNPQRSTUWXYZ]'

在此之前，我删除了所有空格，因为它们不需要。如果需要它们，我会在similar to字符串中放置一个空格。这是我用来删除空格的代码：

 update CUSTOMER_ADDRESSES set POSTCODE = replace(POSTCODE, ' ', '');

检查有效的UK PostCode

1 个答案: