Tag: Schema Changes

SQL Server schema change topics covering ALTER statements, adding or modifying columns, indexes, constraints, and managing structural changes safely in production databases.

  • How to Add Columns to Tables in SQL Server

    Adding columns to tables in SQL Server is a routine task, but it is not always a harmless one. On small tables it is trivial. On large or business-critical tables — especially those involved in replication or heavy write workloads — it can introduce blocking, transaction log growth, or downstream latency if handled carelessly. This…