How to Import CSV Files into SQL Server: Four Reliable Methods

The article was initially published on the Skyvia blog.

Importing CSV files into SQL Server is a common task, ranging from quick one-offs to part of an automated pipeline. Whether you’re loading a small dataset or prepping data for analysis, it helps to know your options and how to avoid common pitfalls.

Let’s explore a straightforward way to import CSV data into SQL Server using native tools and a no-code cloud alternative.

1. Using SQL Server Management Studio (SSMS) Import Flat File Wizard

This is the easiest way to import CSV files directly within SQL Server Management Studio.

How it works:

1. Open SSMS and connect to your database.
2. Right-click your database → Tasks → Import Flat File.
3. Select your CSV file and follow the wizard to map columns.
4. Finish importing data into a new table.

When to use:

• For small to medium-sized files.
• When you want a simple, code-free import.
• Great for testing or one-time data loads.

2. Using BULK INSERT Command

If you prefer scripting your imports for automation or large files, BULK INSERT is a powerful T-SQL command.

When to use:

• For large CSV files.
• When you want to integrate an import into scripts or jobs.
• Requires correct file path access and permission.

3. Using SQL Server Import and Export Wizard

This graphical tool lets you import CSV files and customize the process further.

How it works:

1. In SSMS, right-click your database → Tasks → Import Data.

2. Choose Flat File Source and pick your CSV.

3. Define mappings, preview data, and configure import options.

4. Execute the import.

When to use:

• When you want more control than the flat file wizard.
• For more complex CSVs or data transformations.
• For occasional manual imports.

4. Using Skyvia Cloud-Based Import Tool

For a no-code, cloud-friendly way to import CSV files to SQL Server, Skyvia offers an easy and flexible alternative.

Features:

• Upload CSV files via a web interface or connect to cloud storage.
• Visual mapping and data type handling.
• Schedule regular imports without coding.
• Supports batch and incremental loading.

When to use:

• For automating recurring imports.
• When working with cloud data sources.

If you prefer a simple, browser-based tool without SQL scripting.

Quick Tips to Ensure Smooth Imports

• Verify your CSV’s delimiter and encoding to avoid formatting issues.
• Clean your CSV data (remove empty lines, fix inconsistent formats).
• Match SQL Server data types carefully to avoid errors.
• Test with small files before running large imports.

Wrapping Up

Each method has its sweet spot. Use SSMS tools for quick, manual imports. Choose BULK INSERT for scripting and large datasets. When you need more control, the Import and Export Wizard shines. And if you want to save time with a cloud no-code solution, Skyvia is a great fit.

Got a favorite CSV import method or a tricky case? Drop a comment below — always happy to hear how others tackle this everyday task.