1.HÀM CONVERT CHUỖI TCVN SANG UNICODE
Đầu tiên tạo hàm:
CREATE Function [dbo].[fTCVNToUnicode](
@strInput VARCHAR(4000))
RETURNS NVARCHAR(4000)
AS
BEGIN
DECLARE @strOutput NVARCHAR(4000)
DECLARE @TCVN CHAR(671)
DECLARE @UNICODE CHAR(671)
SET @TCVN = ',184 ,181 ,182 ,183 ,185 ,168 ,190 ,187 ,188 ,189 ,198 ,169 ,202 ,199 ,200 ,201 ,203 ,208 ,204 ,206 ,207 ,209 ,170 ,213 ,210 ,211 ,212 ,214 ,221 ,215 ,216 ,220 ,222 ,227 ,223 ,225 ,226 ,228 ,171 ,232 ,229 ,230 ,231 ,233 ,172 ,237 ,234 ,235 ,236 ,238 ,243 ,239 ,241 ,242 ,244 ,173 ,248 ,245 ,246 ,247 ,249 ,253 ,250 ,251 ,252 ,254 ,174 ,184 ,181 ,182 ,183 ,185 ,161 ,190 ,187 ,188 ,189 ,198 ,162 ,202 ,199 ,200 ,201 ,203 ,208 ,204 ,206 ,207 ,209 ,163 ,213 ,210 ,211 ,212 ,214 ,221 ,215 ,216 ,220 ,222 ,227 ,223 ,225 ,226 ,228 ,164 ,232 ,229 ,230 ,231 ,233 ,165 ,237 ,234 ,235 ,236 ,238 ,243 ,239 ,241 ,242 ,244 ,166 ,248 ,245 ,246 ,247 ,249 ,253 ,250 ,251 ,252 ,254 ,167 ,'
SET @UNICODE = ',225 ,224 ,7843,227 ,7841,259 ,7855,7857,7859,7861,7863,226 ,7845,7847,7849,7851,7853,233 ,232 ,7867,7869,7865,234 ,7871,7873,7875,7877,7879,237 ,236 ,7881,297 ,7883,243 ,242 ,7887,245 ,7885,244 ,7889,7891,7893,7895,7897,417 ,7899,7901,7903,7905,7907,250 ,249 ,7911,361 ,7909,432 ,7913,7915,7917,7919,7921,253 ,7923,7927,7929,7925,273 ,193 ,192 ,7842,195 ,7840,258 ,7854,7856,7858,7860,7862,194 ,7844,7846,7848,7850,7852,201 ,200 ,7866,7868,7864,202 ,7870,7872,7874,7876,7878,205 ,204 ,7880,296 ,7882,211 ,210 ,7886,213 ,7884,212 ,7888,7890,7892,7894,7896,416 ,7898,7900,7902,7904,7906,218 ,217 ,7910,360 ,7908,431 ,7912,7914,7916,7918,7920,221 ,7922,7926,7928,7924,272 ,'
DECLARE @COUNTER INT
DECLARE @POSITION INT
SET @COUNTER = 1
SET @strOutput = ''
WHILE (@COUNTER <= LEN(@strInput))
BEGIN
SET @POSITION = CHARINDEX(','+CONVERT(CHAR(4),ASCII(SUBSTRING(@strInput, @COUNTER, 1)))+',', @TCVN, 1)
IF @POSITION > 0
begin
SET @strOutput = @strOutput + NCHAR(CONVERT(INT,SUBSTRING(@UNICODE, @POSITION+1, 4)))
end
ELSE
SET @strOutput = @strOutput + SUBSTRING(@strInput, @COUNTER, 1)
SET @COUNTER = @COUNTER + 1
END
return @strOutput
END
@strInput VARCHAR(4000))
RETURNS NVARCHAR(4000)
AS
BEGIN
DECLARE @strOutput NVARCHAR(4000)
DECLARE @TCVN CHAR(671)
DECLARE @UNICODE CHAR(671)
SET @TCVN = ',184 ,181 ,182 ,183 ,185 ,168 ,190 ,187 ,188 ,189 ,198 ,169 ,202 ,199 ,200 ,201 ,203 ,208 ,204 ,206 ,207 ,209 ,170 ,213 ,210 ,211 ,212 ,214 ,221 ,215 ,216 ,220 ,222 ,227 ,223 ,225 ,226 ,228 ,171 ,232 ,229 ,230 ,231 ,233 ,172 ,237 ,234 ,235 ,236 ,238 ,243 ,239 ,241 ,242 ,244 ,173 ,248 ,245 ,246 ,247 ,249 ,253 ,250 ,251 ,252 ,254 ,174 ,184 ,181 ,182 ,183 ,185 ,161 ,190 ,187 ,188 ,189 ,198 ,162 ,202 ,199 ,200 ,201 ,203 ,208 ,204 ,206 ,207 ,209 ,163 ,213 ,210 ,211 ,212 ,214 ,221 ,215 ,216 ,220 ,222 ,227 ,223 ,225 ,226 ,228 ,164 ,232 ,229 ,230 ,231 ,233 ,165 ,237 ,234 ,235 ,236 ,238 ,243 ,239 ,241 ,242 ,244 ,166 ,248 ,245 ,246 ,247 ,249 ,253 ,250 ,251 ,252 ,254 ,167 ,'
SET @UNICODE = ',225 ,224 ,7843,227 ,7841,259 ,7855,7857,7859,7861,7863,226 ,7845,7847,7849,7851,7853,233 ,232 ,7867,7869,7865,234 ,7871,7873,7875,7877,7879,237 ,236 ,7881,297 ,7883,243 ,242 ,7887,245 ,7885,244 ,7889,7891,7893,7895,7897,417 ,7899,7901,7903,7905,7907,250 ,249 ,7911,361 ,7909,432 ,7913,7915,7917,7919,7921,253 ,7923,7927,7929,7925,273 ,193 ,192 ,7842,195 ,7840,258 ,7854,7856,7858,7860,7862,194 ,7844,7846,7848,7850,7852,201 ,200 ,7866,7868,7864,202 ,7870,7872,7874,7876,7878,205 ,204 ,7880,296 ,7882,211 ,210 ,7886,213 ,7884,212 ,7888,7890,7892,7894,7896,416 ,7898,7900,7902,7904,7906,218 ,217 ,7910,360 ,7908,431 ,7912,7914,7916,7918,7920,221 ,7922,7926,7928,7924,272 ,'
DECLARE @COUNTER INT
DECLARE @POSITION INT
SET @COUNTER = 1
SET @strOutput = ''
WHILE (@COUNTER <= LEN(@strInput))
BEGIN
SET @POSITION = CHARINDEX(','+CONVERT(CHAR(4),ASCII(SUBSTRING(@strInput, @COUNTER, 1)))+',', @TCVN, 1)
IF @POSITION > 0
begin
SET @strOutput = @strOutput + NCHAR(CONVERT(INT,SUBSTRING(@UNICODE, @POSITION+1, 4)))
end
ELSE
SET @strOutput = @strOutput + SUBSTRING(@strInput, @COUNTER, 1)
SET @COUNTER = @COUNTER + 1
END
return @strOutput
END
Nếu OK sẽ như vậy
