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ema manu — Thu, 25 May 2017 08:20:09 -0000

Why this dll?
Because there isn t in sql server a easy way to do it executing command in sp.

I developed this dll to improve the development of sp and to avoid the problem of the Bulk or Bpc commandm that required Administrator grant.

Below a little documentation on how to use it.

Example

declare @r nvarchar(max),
        @i int            

exec @i=dbo.CLR_Bulk_mt 'db',--database
                        'dbo',--schema
                        'table',--table
                        'path,--path
                        't1.txt',--file
                        0,--encoding 1->UTF8, 2-> UTF8 BOM, 3-> UTF7, 4-> UTF32, altro default 1
                        0,--fisrt row
                        '|',--test delimitator
                        '.',--decimal separator
                        'c3,c4,c2,c1',--columns of table
                        '1,2,5,6',--position of the columns in text
                        ',,yyyyMMdd,',--date format
                        'false',--allow blank
                        1,--heading
                        0,--buffer
                        0,--transaction
                        0,--text has some rows with less columns?
                        @r output                                        
print @i
print @r

Parameters

Sp returns an int value that indicate the number of imported rows or if less 0 means there was an error.

db – String - necessary
It s the db where there is the table where the file will be imported.

Sp could be in a different db.

schema – String - necessary
It s the table schema.

table – String - necessary
It s the table where the file will be imported.

path – String - necessary
The path of the file.

file – String - necessary
File to import.

encoding – int - necessary
1->UTF8
2-> UTF8 BOM
3-> UTF7
4-> UTF32
Other, default 1
First_row – int - necessary
Then beginning to read the rows.

delimitator – char - necessary
It s the delimitator of text columns.

decimale – char
It s the decimal separator.

If not defined (‘’) will use the default of system.

trace – String – (comma list ‘c1,c2,c3,...’)
It s the columns of table to import.

Sp check that:

columns exists in the table;
extract the columns informations (type, nullable,..)
If not defined (‘’) will import in the text sequence and manage columns as String nullable.

positions – String – (comma list of int values ‘1,2,4,9,...’)
Map the previous definition of columns with the position of text columns.

If not defined (‘’) will import in the text sequence.

options – String – (comma list ‘,,yyyyMMdd,ddMMyy,...’ or single vale ‘yyyyMMdd’)
It s the date format.

If the column it s “date/datetime/smalldatetime” sp try to cast it with the defined format.

If not defined (‘’) will use the default system settings.

allow_blank – String - (comma list ‘false,,true,...’ or single vale ‘true’)
Manage the blank or null values.

True: if text value is blank (‘’,’ ‘) and column is nullable then will import “NULL” otherwise will use the minimal value allowed by that type (‘1900-01-01’ date, 0 number).
False: do nothing.
Heading – bool - necessary
True: file has header;
False: file hasn t header.
buffer_row – int
Sp use a buffer to performe the import.

0 use the default value.

To find the best value it s necessary to try with some values because it depends by hardware of server.

trans – bool - necessary
True: run the import in transaction with rollback in case of error or commit id all fine.
False: no transaction.
Use_min_rows – bool
True: If the text has some rows with less columns of the definition will continue to the next.
False: if a row has less columns will return an error.
error – String (ouput)
Returns the error.

Home modified by ema manu

ema manu — Thu, 25 May 2017 08:13:32 -0000

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