更換多個字符的短語與縮寫列表SQL

Question

我有如下（注意一個SQL表：使用報價，使其更易於閱讀

Table1.Description 
"HOUSING,WRAP RECESSED" 
"HOUSING,ASSEMBLY 2-FEED" 
"LENS,FLUSH SUS" 

Table2.Abbreviations 
ASSY = ASSEMBLY 
FD = FEED 
FLUSH = FL 
HSG = HOUSING 
LENS = LNS  
RECESSED = REC 

我想更新，或沿着線的東西代替，並創建新表（無論是好的），Table1.Description與Table2.Abbreviations它應該是這樣的：

Table1.Description 
"HSG,WRAP REC" 
"HSG,ASSY 2-FD" 
"LNS,FL SUS" 

我這個要求，第一次海報的形式道歉，但使用該網站很多次！

Answer 1

嘗試這樣的：：

的表格爲您的縮寫

CREATE TABLE Abbreviations (LongTerm VARCHAR(100),ShortTerm VARCHAR(10)); 
INSERT INTO Abbreviations VALUES 
('ASSEMBLY','ASSY') 
,('FEEd','FD') 
,('FLUSH','FL') 
,('HOUSING','HSG') 
,('LENS','LNS') 
,('RECESSED','REC'); 

GO 

函數做魔術

我使用臨時表來說明如何做到這一點創建一個解決方案

CREATE FUNCTION dbo.ReplaceAbbreviations(@string VARCHAR(MAX)) 
RETURNS VARCHAR(MAX) AS 
BEGIN 
    SELECT @string=REPLACE(@string,LongTerm,ShortTerm) 
    FROM Abbreviations; 

    RETURN @string; 
END 
GO 

一個表，你的字符串

CREATE TABLE YourDescription (LongDescription VARCHAR(MAX)); 
INSERT INTO YourDescription VALUES 
('HOUSING,WRAP RECESSED') 
,('HOUSING,ASSEMBLY 2-FEED') 
,('LENS,FLUSH SUS'); 
GO 

一個簡單的選擇使用功能

SELECT LongDescription 
     ,dbo.ReplaceAbbreviations(LongDescription) AS ShortDescription 
FROM YourDescription; 
GO 

使用動態SQL和全局搜索清潔測試場景

DROP TABLE YourDescription; 
DROP FUNCTION dbo.ReplaceAbbreviations; 
DROP TABLE Abbreviations; 

結果

LongDescription   ShortDescription 
HOUSING,WRAP RECESSED  HSG,WRAP REC 
HOUSING,ASSEMBLY 2-FEED HSG,ASSY 2-FD 
LENS,FLUSH SUS    LNS,FL SUS 

Answer 2

一般策略是遍歷每個單詞/縮寫對，並基於每對更新Table1.Description。

CREATE TABLE #table1 (descr VARCHAR(1000)) 
CREATE TABLE #abbr (word VARCHAR(1000), abr VARCHAR(1000), processed int) 

DECLARE @word VARCHAR(1000) 
DECLARE @abbr VARCHAR(1000) 

INSERT INTO #table1 
     (descr) 
VALUES ('HOUSING,WRAP RECESSED' -- descr - varchar(1000) 

     ), 
      ('HOUSING,ASSEMBLY 2-FEED' -- descr - varchar(1000) 

     ), 
      ('LENS,FLUSH SUS' -- descr - varchar(1000) 

     ) 

INSERT INTO #abbr 
     (word, abr, processed) 
VALUES ('ASSEMBLY', -- word - varchar(1000) 
      'ASSY' -- abr - varchar(1000) 
      ,0 
     ), 
      ('FEED', -- word - varchar(1000) 
      'FD' -- abr - varchar(1000) 
      ,0 
     ), 
      ('FLUSH', -- word - varchar(1000) 
      'FL' -- abr - varchar(1000) 
      ,0 
     ), 
      ('HOUSING', -- word - varchar(1000) 
      'HSG' -- abr - varchar(1000) 
      ,0 
     ), 
      ('LENS', -- word - varchar(1000) 
      'LNS' -- abr - varchar(1000) 
      ,0 
     ), 
      ('RECESSED', -- word - varchar(1000) 
      'REC' -- abr - varchar(1000) 
      ,0 
     ) 


WHILE EXISTS (SELECT * FROM #abbr WHERE processed = 0) 
BEGIN 
    SELECT TOP 1 @word = word, @abbr = abr FROM #abbr WHERE processed = 0 

    UPDATE #table1 
    SET descr = REPLACE(descr,@word,@abbr) 

    UPDATE #abbr 
    SET processed = 1 
    WHERE word = @word AND abr = @abbr 
END 

SELECT * FROM #table1 

Answer 3

這裏是另一種選擇&更換。這個過程將基本上「標記」字符串以避免衝突。

我要指出，該縮寫將最好的是兩個字段（發件人，收件人）。提供的樣本中的一對似乎不一致（Long> Short和Short to Long）。

Declare @Table1 table (ID int,Description varchar(500));Insert into @Table1 values (1,'HOUSING,WRAP RECESSED'),(2,'HOUSING,ASSEMBLY 2-FEED'),(3,'LENS,FLUSH SUS') 
Declare @Table2 table (MapFrom varchar(50),MapTo varchar(50));Insert Into @Table2 values 
('ASSEMBLY','ASSY'), 
('FEED' ,'FD'), 
('FLUSH' ,'FL'), 
('HOUSING' ,'HSG'), 
('LENS' ,'LNS'), 
('RECESSED','REC') 

Declare @SQL varchar(max)='' 
Select @SQL = @SQL+concat(',(',ID,',''||',replace(Description,'''',''''''),'||'')') From @Table1 --Where ID=2 
Select @SQL = Replace(@SQL,MapFrom,MapTo) 
From (
     Select MapFrom=' ',MapTo='|| ||' 
     Union All 
     Select ',','||,||' 
     Union All 
     Select '-','||-||' 
     Union All 
     Select MapFrom = '||'+ltrim(rtrim(MapFrom))+'||' 
       ,MapTo = ltrim(rtrim(MapTo)) 
      From @Table2 
      Union All 
      Select '||','' -- Remove Any Remaining | 
     ) A 
Select @SQL = 'Select * From ('+Stuff(@SQL,1,1,'values')+') N(ID,Value)' 
Exec(@SQL) 

返回

ID Value 
1 HSG,WRAP REC 
2 HSG,ASSY 2-FD 
3 LNS,FL SUS