Sql Upload File To Database – In this SQL Server tutorial, you’ll learn how to import bulk data from CSV files into SQL Server. I will use different examples for demonstration purpose.
Bulk input is a technique for moving large amounts of data from a source to a new destination. There are many ways to import bulk data from a CSV file into a SQL Server database.
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You can use the SQL Server Import and Export Wizard, the BCP utility, or the BULK INSERT statement. In this tutorial, we will use the BULK INSERT statement to insert bulk data from CSV.
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When entering large amounts of data in SQL Server, you need to have two types of permissions. The first is at the database level and the second is at the server where you will host the data.
To insert bulk data, you must have INSERT permission on the target table and MANAGE BULK OPERATIONS on the target server. Additionally, you will need ALTER TABLE permissions if any of the three conditions are met:
SQL Server 2019 has many options for dealing with different file types in a BULK INSERT statement. You can use the following T-SQL query to import the CSV file:
In the T-SQL query above, you need to specify the table name and CSV file path. You will also add some options after the WITH keyword. For example, for a CSV file, you would use the FORMAT option and set it to CSV.
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Second, you’ll set options for formatting the CSV file. For example, options for headers, field terminator, line terminator, etc.
Now let’s see an example of how you can bulk insert data from a CSV file into a database table.
For this example, I created a CSV file and entered some data into it. I have also created a table in the database into which I will import this CSV file using a BULK INSERT query.
The output message shows the number of rows affected. This means that the data has been successfully imported into the table.
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This way, you can use the BULK INSERT statement to bulk insert data from a CSV file into a SQL Server database table.
Sometimes your CSV file may contain headers in the first row. When importing data using the BULK INSERT statement, you must specify the PACE FIRST option. Otherwise, you will encounter an error.
If your first row is a header row and your data starts on the second row, you should set the FIRST row option to 2.
For example, I’ll use the same CSV file that I used in the example above, namely random names and phone numbers of US residents. But this time I will add the headers in the first row.
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Additionally, I will delete the dbo.Persons data from the SQL Server table I imported in the example above and do this operation again.
You can see that all 15 rows of the CSV file are placed in the dbo.Persons table.
Therefore, in this way, you can skip the headers of your CSV file when importing data from this file into a table using the BULK INSERT statement in SQL Server.
If you want to bulk insert data from a CSV file into a new table, you cannot use the BULK INSERT statement. The BULK INSERT statement works only if the destination table exists.
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However, you can use the SQL Server Import and Export Wizard. You can import data from a CSV file into a new table using this Wizard. The SQL Server Import and Export Wizard will create the table and import the data.
So you can import data from a CSV file into a new SQL Server database table.
In this section, I will explain how you can bulk insert data from a CSV file into a temporary SQL Server table.
I will create a temporary table in my SQL Server database where I will place the data from the CSV file.
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Now I’ll use the BULK INSERT statement to import the data from the CSV file into this table:
You can verify that the table in the tempdb database was created with the data stored in the CSV file.
You may encounter some scenarios where you have an identity column in your table. If you try to insert bulk data into that table, new identity values will be assigned.
But what if the identity values are stored in a CSV file and you want to keep those values as they are? In such a case, you must specify the PRESERVE IDENTITY option when using the BULK INSERT statement. Let us understand this with the help of an example.
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Suppose a database contains a table called dbo.RankCompany. The table has an identity column called Rank. I have deleted some rows from the table.
When I inserted the data from the CSV file into this table, I did not get the same values in the Rank column as in the CSV file. After the batch import operation, you can see my CSV file and table data.
In this case, I deleted all the data in the table and ran the batch operation again. This time I specified the KEEPIDENTITY option in the BULK INSERT statement as follows:
After that I got the identity values as in the table. You can see the data of this table in the image below.
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So you can import your existing identity values into a SQL Server table with an identity column.
Sometimes, you may have data in a CSV file surrounded by double quotes, meaning each column value is between double quotes. For example:
If you try to import this data into a SQL Server table using the SQL Server Import and Export Wizard, this data will be imported as is, that is, the column values will be enclosed in double quotes.
This is because you did not specify the Text Qualifier when you imported the data using the SQL Server Import and Export Wizard.
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When selecting the source to import, you must specify the text qualifier as double quotation marks (). See the image below for reference.
Let’s say I have data in this format and I want to import this data into a table called dbo.RankCompany in a SQL Server database.
After executing the T-SQL query above, my data was imported into the table without being enclosed in double quotes.
So you can learn how to insert bulk data into a SQL Server database table with column values.
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In this section, I will explain how you can export data from a SQL Server database table to a CSV file.
You can use either the BCP utility or the SQL Server Import and Export Wizard to export the data to a CSV file. The recommended method is to use the SQL Server Import and Export Wizard because it is very easy to use.
So you can learn how to export data from a SQL Server table to a CSV file using the SQL Server Import and Export Wizard.
When bulk loading data from a CSV file into a SQL Server database, you may encounter a “Cannot bulk load” error. The file does not exist or you do not have access to the file.”
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In this section, we’ll discuss best practices for inserting bulk data into a SQL Server database. We will discuss some ways to improve the performance of bulk additions.
Below are some points to consider when loading bulk data into a SQL Server database:
So you can learn how to import bulk data from a CSV file into a SQL Server database and the best practices for doing so.
I am Bija with more than 15 years experience in software industry. During this time I worked on MariaDB and used it in many projects. Most of our readers are from USA, Canada, UK, Australia, New Zealand etc.
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Want to learn MariaDB? Check out all the articles and tutorials I’ve written on MariaDB. Also, I’m a Microsoft MVP. This is a step by step Laravel File Upload tutorial with example and in this tutorial we will learn how to upload files in Laravel to MySQL database with basic authentication.
If you are a beginner in Laravel development, you should check out our detailed guide on building a Laravel CRUD web application.
In this Laravel file upload example, we will create two routes, one to create the form with the get method and the other to send the file upload or file upload data.
Downloads folder. We will also configure the database model and store the file path along with its name in the MySQL database.
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You can use MAMP or XAMPP as a local web server to upload files to wireless storage. Set the database name to MySQL and add the correct configuration
If you are using MAMP local server on macOS; Make sure you add UNIX_SOCKET and DB_SOCKET under database credentials in the .env file.
Then, open it
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