What This Is
Microsoft SQL Server is the relational database that dominates enterprise environments running on the Microsoft stack. If your business runs Windows Server infrastructure, uses .NET applications, or integrates with Microsoft tools like Power BI, SSRS, or Azure, SQL Server is likely already present in your environment — either as the primary database or as a dependency of commercial software.
We work with SQL Server in integration contexts. Many of the businesses we work with have existing systems — ERP platforms, accounting software, HR systems — that store their data in SQL Server. When our Laravel applications need to read from or write to those databases, we build the integration layer: connecting to SQL Server from PHP, mapping tables and views into application models, handling data type differences between SQL Server and MySQL/PostgreSQL, and managing the authentication and network access required to reach SQL Server instances in corporate environments.
SQL Server is not our primary database for new application development — MySQL and PostgreSQL fill that role. But ignoring SQL Server would mean ignoring the reality of enterprise IT. Businesses do not rip out their SQL Server infrastructure because a new web application uses a different database. They need the new application to work alongside existing systems, and that means SQL Server integration is a practical necessity.
When You Need This
SQL Server is the right choice when your project needs to integrate with existing Microsoft infrastructure or when the hosting environment mandates SQL Server. Common scenarios:
- Your organisation runs existing business systems (ERP, CRM, accounting) that store data in SQL Server and your new application needs to read or synchronise that data
- The project needs Power BI or SSRS reporting that connects directly to SQL Server data sources
- Your IT infrastructure is Microsoft-centric (Windows Server, Active Directory, Azure) and SQL Server is the standard database platform
- You are building an application that needs to run alongside .NET systems sharing the same database
- Data migration from SQL Server to MySQL or PostgreSQL is required as part of a platform modernisation project
- Your application needs stored procedures, triggers, or T-SQL logic that already exists in SQL Server and cannot be easily replicated
This is not the right choice for new web applications built on our standard stack. SQL Server licensing costs are significant, and MySQL/PostgreSQL provide equivalent capabilities for web application workloads without per-core licensing fees.
How We Work
SQL Server integration follows a clean separation between the external database and the application’s primary data store. Laravel applications connect to SQL Server as a secondary database connection, configured alongside the primary MySQL or PostgreSQL database. Models that map to SQL Server tables specify the connection explicitly, and queries against SQL Server are carefully scoped to avoid performance issues caused by cross-database joins or latency between servers.
Connection management handles the authentication and networking requirements of corporate SQL Server environments. This includes SQL Server Authentication and Windows Authentication (through the appropriate PHP drivers), SSL-encrypted connections, and firewall rules that allow the application server to reach the SQL Server instance. We configure connection pooling to avoid creating excessive connections that strain the SQL Server license or instance limits.
Data type mapping addresses the differences between SQL Server and PHP’s type system. SQL Server’s datetime2, datetimeoffset, uniqueidentifier, money, and bit types require explicit handling. We build data transfer objects or Eloquent casts that handle conversion reliably, preventing the silent data corruption that occurs when types are mapped incorrectly.
Migration projects — moving data from SQL Server to MySQL or PostgreSQL — follow a structured process. We map the source schema, identify data type equivalents, handle T-SQL-specific constructs (stored procedures, computed columns, triggers), and build the extraction and transformation pipeline. Data is validated post-migration by comparing row counts, checksums, and sample records between source and target.
What You Get
- SQL Server integration — Laravel connections to SQL Server databases for reading, writing, and synchronising data
- Data access layers — Eloquent models and query builder usage configured for SQL Server-specific features
- Cross-database architecture — applications that use MySQL/PostgreSQL as primary storage while reading from SQL Server for enterprise data
- Migration projects — structured data migration from SQL Server to MySQL or PostgreSQL with validation
- Stored procedure interfaces — PHP wrappers for calling existing SQL Server stored procedures from Laravel applications
- Reporting connections — data access configuration for Power BI, SSRS, or other reporting tools
- Connection security — encrypted connections, proper authentication, and access control for corporate network environments
Technologies We Use
- SQL Server 2019 / 2022 — current versions with JSON support, graph tables, and improved query processing
- Laravel SQL Server driver — Eloquent ORM and query builder with SQL Server dialect support
- sqlsrv / PDO_SQLSRV — PHP drivers for SQL Server connectivity
- T-SQL — SQL Server’s SQL dialect for stored procedures, functions, and complex queries
- SQL Server Management Studio — database administration and query development
- Azure SQL Database — managed SQL Server for cloud-hosted environments
- DBAtools / sqlcmd — command-line administration and scripting tools
Related Systems
SQL Server integration typically sits alongside our primary database choices: MySQL and PostgreSQL. Applications access SQL Server through Laravel using the SQL Server driver. Data from SQL Server feeds into dashboards built with React. For reporting and data visualisation work that connects to SQL Server, see our reporting systems service.
Talk to Us About SQL Server
If your project needs SQL Server integration, data migration, or a web application that connects to existing SQL Server infrastructure, get in touch and we will map the integration requirements.
