Question

我想从文本文件中导入数据。其中包含大量的记录

我正在使用批量插入这样做

BULK
INSERT vw_bulk_insert_test
FROM '\\server\c$\csvtext.txt'--\\server\SQLEXPRESS\csvtest.txt'
WITH
(FIRSTROW=2,
check_CONSTRAINTS,
FIELDTERMINATOR = '~',
ROWTERMINATOR = '\n'
)
GO

但是在插入之前我想要验证每列的值而不使用cursor.Like如果第二行将具有除unit_number（Column）之外的所有字段的值，那么它应该创建一个错误日志，指定unit_number值丢失。

Answer 1

就个人而言，我会批量插入到临时表中，然后从临时表中进行验证/转换，然后使用TSQL或TSQL以最初为此目的创建的存储过程的形式存放事物。< / p>

Answer 2

你有这个语法

BULK INSERT 
   [ database_name . [ schema_name ] . | schema_name . ] [ table_name | view_name ] 
      FROM 'data_file' 
     [ WITH 
    ( 
   [ [ , ] BATCHSIZE = batch_size ] 
   [ [ , ] CHECK_CONSTRAINTS ] 
   [ [ , ] CODEPAGE = { 'ACP' | 'OEM' | 'RAW' | 'code_page' } ] 
   [ [ , ] DATAFILETYPE = 
      { 'char' | 'native'| 'widechar' | 'widenative' } ] 
   [ [ , ] FIELDTERMINATOR = 'field_terminator' ] 
   [ [ , ] FIRSTROW = first_row ] 
   [ [ , ] FIRE_TRIGGERS ] 
   [ [ , ] FORMATFILE = 'format_file_path' ] 
   [ [ , ] KEEPIDENTITY ] 
   [ [ , ] KEEPNULLS ] 
   [ [ , ] KILOBYTES_PER_BATCH = kilobytes_per_batch ] 
   [ [ , ] LASTROW = last_row ] 
   [ [ , ] MAXERRORS = max_errors ] 
   [ [ , ] ORDER ( { column [ ASC | DESC ] } [ ,...n ] ) ] 
   [ [ , ] ROWS_PER_BATCH = rows_per_batch ] 
   [ [ , ] ROWTERMINATOR = 'row_terminator' ] 
   [ [ , ] TABLOCK ] 
   [ [ , ] ERRORFILE = 'file_name' ] 
    )]

在sql server中的bulkinsert之前验证

2 个答案: