SSIS Flat File Loading Examples
This section provides practical examples and scenarios for loading data from flat files (like CSV, TXT) into SQL Server using SQL Server Integration Services (SSIS). These examples cover common challenges and best practices.
1. Basic CSV File Import
Learn how to import a simple comma-separated values (CSV) file into a SQL Server table. This includes configuring the Flat File Source and Destination components.
Key Concepts:
- Flat File Connection Manager setup for CSV.
- Column mapping and data type handling.
- Basic error handling configuration.
2. Importing Fixed-Width Files
Demonstrates how to import data from files where columns are defined by their character position, not a delimiter.
Key Concepts:
- Configuring the Flat File Connection Manager for fixed-width formats.
- Defining column widths and boundaries.
- Handling different data types in fixed-width columns.
3. Handling Delimited Files with Different Delimiters
This example shows how to work with flat files that use delimiters other than commas, such as pipes (|) or tabs.
Key Concepts:
- Specifying custom delimiters in the Flat File Connection Manager.
- Managing text qualifiers (e.g., double quotes).
- Importing files with varying text encoding.
4. Advanced Flat File Loading Scenarios
Explore more complex scenarios, including loading files with headers, handling multi-line records, and using conditional loading based on file content.
Key Concepts:
- Skipping header rows.
- Using Script Components for complex parsing.
- Implementing error redirection for problematic rows.
- Dynamic file path configuration.
5. Loading Multiple Flat Files with a Foreach Loop Container
Learn how to automate the loading of multiple flat files from a directory using a Foreach Loop Container in your SSIS package.
Key Concepts:
- Configuring the Foreach Loop Container.
- Using expressions to dynamically set file paths.
- Processing files one by one in a batch.