Cách Import File .Sql Vào Sql Server

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Import Flat File Wizard is a simple way khổng lồ copy data from a flat file (.csv, .txt) khổng lồ a new table in your database. The Import Flat File Wizard supports both comma-separated và fixed width format files. This overview describes the reasons for using this wizard, how khổng lồ find this wizard, and a simple example to follow.

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Why would I use this wizard?

This wizard was created to improve the current import experience leveraging an intelligent framework known as Program Synthesis using Examples (PROSE). For a web1_user without specialized domain knowledge, importing data can often be a complex, error prone, & tedious task. This wizard streamlines the import process as simple as selecting an input tệp tin and unique table name, & the PROSE framework handles the rest.

PROSE analyzes data patterns in your input đầu vào file khổng lồ infer column names, types, delimiters, và more. This framework learns the structure of the file và does all of the hard work so web1_users don"t have sầu to.

To further understvà the web1_user experience improvement of the Import Flat File Wizard, check out this video:

Prerequisites

This feature is available on Squốc lộ Server Management Studio (SSMS) v17.3 or later. Make sure you are using the latest version. You can find the latest version here.

Getting Started

To access the Import Flat File Wizard, follow these steps:

xuất hiện Squốc lộ Server Management Studio.Connect khổng lồ an instance of the Squốc lộ Server Database Engine or localhost.Expand Databases, right-click a database (test in the example below), point to Tasks, và cliông xã Import Flat File above sầu Import Data.


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To learn more about the different functions of the wizard, refer to the following tutorial:

Tutorial

For the purposes of this tutorial, feel không lấy phí lớn use your own flat tệp tin. Otherwise, this tutorial is using the following CSV from Excel, which you are không tính tiền lớn copy. If you use this CSV, title it example.csv and make sure khổng lồ save it as a csv in an easy location such as your desktop.


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Overview:

Step 1: Access Wizard và Intro Page

Access the wizard as described here.


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Step 2: Specify Input File

Cliông xã browse to lớn select your input file. At mặc định, the wizard searches for .csv & .txt files. PROSE will detect if the file is comma-separated or fixed-width format regardless of tệp tin extension.

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The new table name should be unique, and the wizard does not allow you khổng lồ move sầu further if not.


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Step 3: Pđánh giá Data

The wizard generates a pReview that you can view for the first 50 rows. If there are any problems, cliông chồng cancel, otherwise proceed lớn the next page.


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Step 4: Modify Columns

The wizard identifies what it believes are the correct column names, data types, etc. Here is where you can edit the fields if they are incorrect (for example, data type should be a float instead of an int).

Columns where empty values are detected will have sầu "Allow Nulls" checked. However if you expect nulls in a column & "Allow Nulls" is not checked, here is where you can update the table definition to allow nulls in one or all columns.

Proceed when ready.


Step 5: Summary

This is simply a summary page displaying your current configuration. If there are issues, you can go baông xã to lớn previous sections. Otherwise, clicking finish attempts the import process.


Step 6: Results

This page indicates whether the import was successful. If a green kiểm tra mark appears, it was a success, otherwise you may need to Review your configuration or input đầu vào file for any errors.


Troubleshooting

The Import Flat File Wizard detects the data types based on the first 200 rows. In scenargame ios where data further in the flat file does not conform lớn the automatically detected data types, an error will occur during import. The error message would be similar to lớn the following:

Error inserting data into lớn table. (thietkewebhcm.com.vn.SqlServer.Prose.Import)The given value of type String from the data source cannot be converted khổng lồ type nvarchar of the specified target column. (System.Data)String or binary data would be truncated. (System.Data)Tactics khổng lồ alleviate this error:


Error inserting data inkhổng lồ table occured while inserting rows 1 - 2. (thietkewebhcm.com.vn.SqlServer.Prose.Import)The given value of type String from the data source cannot be converted khổng lồ type float of the specified target column. (System.Data)Failed khổng lồ convert parameter value from a String to a Double. (System.Data)

Learn More

Learn more about the wizard.