Flat file connection manager carriage return/line feed discrepancy

问题

I'm upgrading from SQL Server 2008R2 to 2017, and making the same jump with SSIS. There are a number of flat file imports that are picking up files that have carriage return/line feeds ({CR}{LF}) embedded within a column in the row.

The 2008R2 flat file connection manager ignores the embedded {CR}{LF}s that are within a row, but the flat file connection manager in 2017 is treating each {CR}{LF} as a new line. It's the same in an upgraded connection manager or a brand new one that I make from scratch.

In both versions, the connection managers have the same specs:

General Tab

  Locale: English (United States)
  Unicode: No
  Code page: 1252 (ANSI-Latin I)
  Format: Delimited
  Text qualifier: <none>
  Header row delimiter: {CR}{LF}
  Header rows to skip: 0
  Column names in the first data row: Check

Columns Tab

  Row delimiter: {CR}{LF}
  Column delimiter: Vertical Bar{|}

The not particularly complicated text file I'm testing with:

row_id|row_data|empty_column|created_by|one_more_field{CR}{LF}
1|random test data||ebrandt|{CR}{LF}
2|Data field with a carriage return{CR}{LF}
and a line feed embedded in it.||ebrandt|

I pasted on the line terminators, just to show that they're there.

On the Columns tab, the Preview window in BIDS 2008R2 shows two rows:

But in 2017, exactly the same file gets broken into three rows:

There isn't bandwidth in this project to rework all the file imports.

Is there a setting that got changed between versions that I can change back? Or is there another trick to this that I'm missing?

Edit: In response to a comment that's been deleted, I would specify a text qualifier if I could, but the files I'm getting don't have any.

回答1:

In the Flat File Connection Manager you need to set the AlwaysCheckForRowDelimiters property to False.

Your file will then be parsed as before.

This was a change made in 2012 to change behaviour to the following.

By default, the Flat File connection manager always checks for a row delimiter in unquoted data, and starts a new row when a row delimiter is found. This enables the connection manager to correctly parse files with rows that are missing column fields.

See this link for more about it.

来源：https://stackoverflow.com/questions/53951062/flat-file-connection-manager-carriage-return-line-feed-discrepancy