What is the default sorting rule in SQL Server?

The default sorting rule in SQL Server is determined based on the database’s sorting rule. During the installation of SQL Server, you can choose the default sorting rule or set it manually.

Common sorting rules in SQL Server include:

1. SQL_Latin1_General_CP1_CI_AS (case-insensitive, accent-insensitive Latin alphabet sorting rule)
2. Chinese_PRC_CI_AS (Chinese Sort Order)
3. Japanese_CI_AS (Japanese collation)
4. Cyrillic_General_CI_AS (Cyrillic alphabet sorting rules)
5. Latin1_General_CI_AS (Latin character sorting rules that are case-insensitive)

These sorting rules determine how characters are compared, including whether to differentiate between uppercase and lowercase, accents, special characters, etc. Default sorting rules can affect data sorting in databases, string comparisons, and the use of indexes.