1, TXT file is imported into SQL
303410001401 ??????? 600 lang 4-t Guangdong IG? 0220 ??? 011840628900000 ?? bpo303410001501 ??????? 600 landau in ER? 0220 ??? 011840628900000 ?? bpo303410001601 ?????? ? 600 LANG 6-T Han IG? 0220 ??? 011840628900000 ?? BPO
There is this TXT file to import SQL, there is a fixed data format, which is integrated into a column due to no significant definition, and then intercepts the separation in SQL, and there is the problem:
The length of the data structure is a single-byte length, but only one of SUBString () in SQL is only one bit, in some requirements, because Chinese characters are free, if only one will affect the correctness of the data.
Workaround: Cast (Substring (Cast (Cast), 39, 4) AS Char (18)) AS TIME_ID
That is to transfer the field to a Varbinary type. This Chinese characters are also 2 digits, and the interception is satisfied to meet the fixed format, and then turn back the character.
2, SQL table leads to TXT
Use CAST (????? as char (20))
3, take the length
Len () Chinese characters only count 1
Use Datalength () Chinese characters to count 2
