What is bulk insert?

Msdn explanation:

Import data files to database tables or views in the format specified by the user in SQL Server.

Syntax:

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‘ ]     )]

Simple application:

The table structure is as follows:

CREATE TABLE [dbo].[Types] (    [Id]        INT          IDENTITY (1, 1) NOT NULL,    [TypeName]  VARCHAR (50) DEFAULT (‘‘) NULL,    [TypeValue] INT          DEFAULT ((0)) NULL,    PRIMARY KEY CLUSTERED ([Id] ASC));

The content of the text file to be imported (D: \ a.txt) is as follows:

1,Add,12,Modify,23,Delete,4

Import command:

BULK INSERT dbo.Types FROM ‘D:a.txt‘ WITH(FIELDTERMINATOR=‘,‘)

Fieldterminator: delimiter between fields (default value: \ t tab );

Rowterminator: the delimiter between rows. The default value is \ r \ n ).

For other parameters, see the msdn annotation.