Keywords: SQL Server | Data Export | INSERT INTO | Data Migration | SSMS
Abstract: This article provides a comprehensive guide on exporting table data as INSERT INTO statements using the Generate Scripts feature in SQL Server Management Studio, covering interface differences from SQL Server 2008 to 2012 and supplementing with SSMS add-in enhancements. It also addresses common data format issues in migration processes and presents practical code examples for complete operational workflows.
Script Generation Feature in SQL Server Management Studio
In SQL Server database management, there is often a need to migrate table data to different database servers. SQL Server Management Studio (SSMS) includes a built-in script generation feature that conveniently exports data as INSERT INTO statements. In Object Explorer, right-click the target database, select the "Tasks" menu item, and then click "Generate Scripts" to launch the script generation wizard.
Configuration Options for Data Script Generation
The script generation wizard offers multiple configuration options to control the output content. A key option is the "Script Data" setting; when set to TRUE, the wizard generates corresponding INSERT INTO statements for all data in the table. In SQL Server 2008 R2 and later versions (e.g., 2012), this option is renamed to "Types of Data to Script," providing three choices: "Data Only," "Schema and Data," or "Schema Only" (default).
The following example illustrates the basic structure of generated INSERT INTO statements:
INSERT INTO Employees (EmployeeID, FirstName, LastName, Department)
VALUES (1, 'John', 'Doe', 'Sales');
INSERT INTO Employees (EmployeeID, FirstName, LastName, Department)
VALUES (2, 'Jane', 'Smith', 'Marketing');Enhanced Functionality with SSMS Add-ins
Beyond built-in features, third-party SSMS add-ins can extend data script generation capabilities. For instance, the SSMS Addin package available on Codeplex offers similar functionality with additional features like quick find. These add-ins typically provide more flexible data filtering options and output format customization.
Format Handling Challenges in Data Migration
Data migration processes frequently encounter data format conversion issues. As discussed in the reference article for Excel export scenarios, even when using the OPENROWSET function to insert data into Excel files, numerical data may be incorrectly identified as text format. This affects subsequent data analysis operations, such as the inability to use these values directly in SUM functions.
One solution to this problem is performing format conversion in the target system. For example, in Excel, text can be converted to numbers by copying a blank cell and using the "Paste Special/Values/Add" operation. Another approach involves using formulas for real-time conversion:
=IF(LEN(Sheet1!B2)=0, "", Sheet1!B2*1)Best Practice Recommendations
For regularly executed data migration tasks, a templated approach is recommended. Create pre-formatted template files to ensure target columns are correctly set to numerical types. If the first few values in the data source are numerical, the driver typically maintains format consistency. Additionally, consider using linked spreadsheets instead of direct exports, allowing users to refresh data on demand and reducing maintenance overhead.
When generating INSERT INTO scripts, special attention should be paid to handling special characters and data type compatibility. For string values containing single quotes, proper escaping is necessary:
INSERT INTO Products (ProductName, Description)
VALUES ('O''Reilly Book', 'Technical publication');By appropriately configuring script generation options and adopting suitable post-processing strategies, the accuracy and efficiency of data migration processes can be ensured.