Import Variable Fixed Length File

Mar 3, 2006

I have a requirement to import a file of rows containing fixed length data. The problem is that each row can be one of 5 different formats (i.e. different columns) -- where the "type" of row is indicated by the first two characters of the row. Each row gets inserted into its own table.

Could I use a simple Conditional Split to route the rows? Or is the split for routing similiar rows? Anyways, problems are never this simple...

In addition, each "grouping" of rows is related. The "first" row is considered the "primary" row (and gets a row id via IDENTITY, whereas the remaining rows in the group are "secondary" rows and have foreign key references back the the primary rows id.

Given (using spaces to separate columns and CrLf to show "grouping"):

01 MSFT blah blah
02 blahblah blahblahblah
03 boring boringblah

01 AAPL blah blah
02 blahblah blahblahblah
03 boring boringblah

01 CSCO blah blah
02 blahblah blahblahblah
02 blahblah blahblahblah
03 boring boringblah

So, the first 3 lines are all related to a MSFT record which needs to be spread across multiple tables. The next three lines are all related to AAPL, And the next FOUR lines (yes, each record can have zero, one, or more secondary rows) are related to CSCO.

(If this is still not clear, all the "01" rows will be written to [Table1] with each row having an IDENTITY value. All the "02" rows will be written to [Table2] the a FK pointing to the correct [Table1] row. All the "03" rows will be written to... and so on.

Any ideas would be appreciated.

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Can't Import Text File Fixed Length

Apr 21, 2003

Will be getting new file for download from vendor to process in future. When I use DTS or Import wizard in sql server I get "could not find the selected row delimiter within the first 8kb of data, is the selected delimited valid? This is for a fixed length file. If I answer yes and continue everything is fine, until I get to the end of the record which it can't find. It basically lumps the records together. What is interesting, that if I import the same file in Access 2000, I don't get this problem. ANyone seen this before? Could not find anything on MSDN

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Fixed Length Text File Import

Dec 5, 2007



Hi,

I am trying to import a text file that has fixed length fields.
It also has column headers repeated in the file.

The text file is delimited by <CR><LF>.

Question 1

There are certain rows that end abruptly after a column for ex:
Row 1 <col1 data>.....<col2 data>.....<col3 data><CR><LF>
Row 2 <col1 data>.....<col2 data><CR><LF>

This seems to be throwing off the text file import as row 1 seems to be importing alright but row 2 gets ignored.
This not the behaviour I want. I want row 2 to also be imported and have a default of NULL for the columns that
are not specified.

Does anyone know how to achieve this?

Question 2

This is not that serious, but currently, I do not know of a way to ignore repeating column headers.
It would be nice if there was a way, but I can always resort to T-SQL based data cleaning after the import.

Thanks.

Shailen Sukul
|BSc|Mcsd.Net|Mcsd|Mcad|
Software Architect / Developer
Ashlen Consulting Services
http://www.ashlen.com.au

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Apr 18, 2008



what is the best way to import fixed length text file to sql server using SSIS?

I was trying to using text file source and ole db destination..but since the text file has no columns and have different length per column and per line( it show only one column becasue it all concatnated), I can not map it to destination column..

How can I import it?

Here is the example of text file ( fixed with row delimeter)that i need to import to different columns...



010000000000000000001164.00023 YV

02004101 1 2008-04-OLL 43456 0000000001 2008-04-08

030000100000000000000000000007.00

047890 7556 YYU 779

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I have this doubt and want to be sure if my thinking is correct.

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The table with fixed length column will always allocate same size within a Page however, table with variable length column will allocate actual length of data within a page.

I think that updates happening on table with fixed length columns will have more possibility of InPlace updates at least from data length perspective, however updates on table with variable length columns will have more split updates from data length perspective.

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Jan 2, 2008

Hey All,

Similar to a previous post (http://forums.microsoft.com/MSDN/ShowPost.aspx?PostID=244646&SiteID=1), I am trying to import data into a SQL Table.

I am trying to program a small application that will import product data obtained through suppliers via CD-ROM. One supplier in particular uses Fixed width colums, and data looks like this:




Example of Data

0124015Apple Crate 32.12

0124016Bananna Box 12.56

0124017Mango Carton 15.98

0124018Seedless Watermelon 42.98
My Table would then have:
ProductID as int
Name as text
Cost as money

How would I go about extracting the data with an XML Format file? I am stumbling over how to tell it where to start picking up data for a specific column.
Is there any way that I could trim the Name column (i.e.: "Mango Carton " --> "Mango Carton")?

I don't know if it makes any difference, but I've been calling SQL from my code by doing this:




Code in C# Form

SqlConnection SqlConnection = new SqlConnection(global::SQLClients.Properties.Settings.Default.ClientPhonebookConnectionString);
SqlCommand cmd = new SqlCommand();

cmd.CommandType = CommandType.Text;
cmd.CommandText = "INSERT INTO PhonebookTable(Name, PhoneNumber) VALUES('" + txtName.Text.ToString() + "', '" + txtPhoneNumber.Text.ToString() + "')";
cmd.Connection = SqlConnection;

SqlConnection.Open();
cmd.ExecuteNonQuery();
SqlConnection.Close();
RefreshData();
I am running Visual Studio C# Express 2005 and SQL Server Express 2005.



Thanks for your time,


Hayden.

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I have approximately 13 columns. Each Column has a start position and end position.. I created this in a table and defined the position, it's still not working for me.

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StateStudID char(10), -- starting position 7, field length 10
CampusStudID char(10), -- starting position 17, field length 10
LastName char(25), -- starting position 27, field length 25

[Code] .....

I need a text output file that will define each start position.I also used: right(replicate('0',25) + cast(last_name as char(25)), 25) in my sql statement.when I add the first_name, I can't get it to start in position 52.

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aaaaaa bbbbb ccccc ddddd eeeee

[][]aaaaa bbbbb ccccc ddddd eee
ee[][]aaaaa bbbbb ccccc ddddd e
eeee[][]aaaaa bbbbb ccccc ddddd

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Hi All,

I have a file that has fixed row size of 148 and fixed column size, but the file has no end of line character. I know it is wierd but a client has made the file and refuses to change the format. So I am stuck with reading it the way it is.
In Enterprise Manager, I used the Import/Export wizard and I specified fixed length and it let me specify 148 as the lenght of each line. Then it recognized the file and I was able to read it in.
I saved the DTS package and I can run it over and over again using dtsrun. However I want to do the same thing using Bulk Insert. How do you specify fixed row length for Bulk insert and how do you give it individual column lengths?

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Aug 21, 2006

Hi,

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For example a file would look like the following:

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I can't see a way to extract the data using a flat file connection, unless we add a delimeter for the header (not possible at this stage). Am I wrong?

Any suggestions on possible solution would be much appreciated - I'm thinking Ill have to write a script to parse the file manually.

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Hi,

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The file has a fixed number of columns, let's say 3 columns.
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Here is the sample of the file contents:
John Doe USA
Mary Monroe UK
Andy Archibald Singapore



Here is the hints to read the file contents
123456789
0123456789
0123456789
==============================
John Doe USA
Mary Monroe UK
Andy Archibald Singapore

If you notice, from the 1st column until the 9th column, it's reserved for the first name.
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Since there's no delimiter inside the flat file contents, i have difficulty in parsing this text using SSIS Package.

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Thanks for all your help.

Regards,

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Some fields are null, and represented by the text NULL.

I'm trying to import the file into SQL via an OLE DB connection. The target table is a SQL 2000 data table. Two of the fields in the target database are of type smallint.

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After linking everything up, the conversion gives me a "Cannot convert because of a possible loss of data." All of my numbers are < 50, so I know this isn't the case. Another SSIS bogus error

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I dropped the convert task and tried editing the data source, and set the two smallint fields to smallint instead of string (SSIS formats). I get the same conversion error.

Changing the NULL values to 0 fixed the problem, but they're not 0. They're null.

Short of creating another script that converts all zeros to NULL using the aforementioned hack, I'm out of ideas.



I'm I missing something or is SSIS just incapable of handling nulls in fixed-width flat file formats?

TIA

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TIA

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Dec 4, 2007

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FieldName DataType Start Length
AFIID C 1 5
LOCID C 7 15
LOGDATE C 23 11
LOGTIME C 35 4
LOGCODE C 40 4
HEADDIR C 45 3
SLUGVOL C 49 7
UNITS C 57 10

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1 2 3 4 5 6
1234567890123456789012345678901234567890123456789012345678901234567
AFP29 01-SB-01 10-AUG-2000 0900 ABB DRW 9999.99 CFS
AFP29 01-SB-01 10-AUG-2000 0900 ABB DRW 9999.99 CFS
AFP29 01-SB-02 30-DEC-2000 0900 ABB DRW 9999.99 CFS
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AFP29 10-AUG-2000 0900 ABB DRW 9999.99 CFS
AFP29 01-SB-01 0900 ABB DRW 9999.99 CFS
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AFP29 01-SB-01 10-AUG-2000 ABB DRW 9999.99 CFS
AFP29 01-SB-01 10-AUG-2000 900 ABB DRW 9999.99 CFS
AFP29 01-SB-01 10-AUG-2000 0900 ABB DRW DFDSF CFS
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This looks like it would work great for delimeted files but in my case there are no delimiters. If I don't include a terminator ("") would the following format file spec import my data correctly?
9.0
8
1 SQLCHAR 0 5 "" 1 AFIID ""
2 SQLCHAR 0 15 "" 2 LOCID ""
3 SQLCHAR 0 11 "" 3 LOGDATE ""
4 SQLCHAR 0 4 "" 4 LOGTIME ""
5 SQLCHAR 0 4 "" 5 LOGCODE ""
6 SQLCHAR 0 3 "" 6 HEADDIR ""
7 SQLCHAR 0 7 "" 7 SLUGVOL ""
8 SQLCHAR 0 10 "
" 8 UNITS ""

Thanks,
Richard Anderson

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Oct 26, 2006

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*snip*

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its importing like :

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I am trying to use DTC to import about 500 records from an Excelsheet to an SQL database.

Some fields contain strings with a length of about 1700 characters.

When i'm trying to execute the DTC generated code it is giving an error and saying that the maximum string length of 255 has been reached. Althoug the column in the database is defined as nchar(1750).

Does anybody know an answer to this problem ?

Thanks in advance,

Goofy

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Finding Out Variable Type And Length

Apr 28, 1999

I'm new to SQL Server. I installed a copy of 6.5 on my server and set it up today. I received a db from a colleague and have been unable to find out what the variable types and lengths are. This may be very easy but I need to know.

Thanks,
David A. Fordinal
fordinal@uta.edu

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Ambiguous Length Varbinary Variable

Jun 24, 2008

Hi,

I'm trying simple code:

declare @varbinary varbinary(8000)
set @varbinary = 2592
print len( @varbinary )

number length
2590 4 bytes
2591 4 bytes
2592 3 bytes ????
2593 4 bytes

All number in range 1 - 9000 has length 4 bytes except these numbers:

32,288,544,800,1056,1312,1568,1824,2080,2336,2592,2848,3104,3360,3616,3872,4128,4384,4640,4896,5152,5408,5664,5920,6176,6432,6688,6944,7200,7456,7712,7968,8480,8736,8992

These numbers has length 3 bytes !

Why?

I´m using varbinary variable to transport ID values and parsing in loop

set @cnt = len( @binEmpIDList ) / 4 -- 4 length
....
insert into @List( ID ) values( substring( @varbinary, @i * 4 + 1, 4 ) )
...

but this algorithm malfunctioning in enumerated numbers.

Please help, how correct this.
ID values in @varbinary too much. I cannot using convert varbinary to bigint and convert bigint to string.


Dalibor

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