How to insert csv file (900MB) data in SQL server quickly? - sql-server

Question

I have tried inserting using itertuples but my file is too big. I even split the file in 4 different files even then its too big. one-fourth file takes more than 30 minutes. Is there a easier and quicker way to import data in SQL server?
Thanks in advance.

Answer 1

For faster importing big data, SQL SERVER has a BULK INSERT command. I tested on my local server, importing process for 870 MB CSV file (10 million records) to SQL SERVER executed time been 12.6 second.
BULK INSERT dbo.import_test_data
FROM 'C:\Users\Ramin\Desktop\target_table.csv'
Full syntax this command:
BULK INSERT
{ database_name.schema_name.table_or_view_name | schema_name.table_or_view_name | table_or_view_name }
FROM 'data_file'
[ WITH
(
[ [ , ] BATCHSIZE = batch_size ]
[ [ , ] CHECK_CONSTRAINTS ]
[ [ , ] CODEPAGE = { 'ACP' | 'OEM' | 'RAW' | 'code_page' } ]
[ [ , ] DATAFILETYPE =
{ 'char' | 'native'| 'widechar' | 'widenative' } ]
[ [ , ] DATA_SOURCE = 'data_source_name' ]
[ [ , ] ERRORFILE = 'file_name' ]
[ [ , ] ERRORFILE_DATA_SOURCE = 'errorfile_data_source_name' ]
[ [ , ] FIRSTROW = first_row ]
[ [ , ] FIRE_TRIGGERS ]
[ [ , ] FORMATFILE_DATA_SOURCE = 'data_source_name' ]
[ [ , ] 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 ]
-- input file format options
[ [ , ] FORMAT = 'CSV' ]
[ [ , ] FIELDQUOTE = 'quote_characters']
[ [ , ] FORMATFILE = 'format_file_path' ]
[ [ , ] FIELDTERMINATOR = 'field_terminator' ]
[ [ , ] ROWTERMINATOR = 'row_terminator' ]
)]