Connection manager

As explained in 100 SQL Server Mistakes and How to Avoid Them

An SSIS connection manager is a package object that stores connection information and provider settings for a data source or destination.

A connection manager stores the settings SSIS uses to reach a data source or destination. Common choices include OLE DB, ADO.NET, file, flat file, and Analysis Services connections. Use OLE DB for SQL Server data flows when performance matters; use ADO.NET for Execute T-SQL Statement tasks on the control flow. section 6.0

Mistake #1: trusting the default provider and security settings. SQL Native Client 11 is deprecated and is not included with SQL Server 2022. Install Microsoft OLE DB Driver 19 for SQL Server, after its Visual C++ Redistributable prerequisite, then select that provider. Its encryption setting defaults to Mandatory; without SQL Server certificates, change Use Encryption For Data to Optional. section 6.0

Loading a CSV file into Marketing staging

Create two connection managers: a flat file connection for impressions.csv and an OLE DB connection for the SQL Server instance hosting Marketing. Configure the flat file’s path, encoding, and format; set its comma delimiter; review column properties and the 100-row preview. Do not blindly accept inferred types from that preview. For a permissive staging load, retain 50-character string columns, then configure the SQL Server instance and initial catalog in the OLE DB connection. section 6.1

Figure 6.1 Flat file connection manager—Columns page

Use the Columns page to verify that the flat-file delimiter is a comma before loading the CSV. section 6.1

How 100 SQL Server Mistakes and How to Avoid Them covers it

How deep it goes

Walks through provider, server, database, file-format, delimiter, column, and preview settings, while deferring broader connection internals.

Examples

Uses impressions.csv, a Marketing SQL Server database, comma-delimited columns, and a 100-row file preview.

What it assumes

Teaches connection setup from an empty SSIS control flow while assuming access to a CSV file and SQL Server instance.

What you can do after

Operate/configure flat-file and OLE DB connection managers for a CSV-to-SQL Server staging load.

How it connects

Connects OLE DB, ADO.NET, SQL Server, Execute T-SQL Statement tasks, data flows, flat files, and staging tables.

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Related concepts

• SQL Server Integration Servicesused by · SQL Server Integration Services is Microsoft's platform for building workflows that extract, transform, and load data.

This explainer was generated by Manning's knowledge graph from the text of 100 SQL Server Mistakes and How to Avoid Them. The section links point to the parts of the book it draws on.