Appendix A: Access 2010 Specifications
1251
SQL Server Database Engine Object Maximum Size or Number for SQL Server 2008 Express
Database size 4GB
Databases per instance of SQL Server 32,767
File groups per database 32,767
Files per database 32,767
File size (data) 4GB (not including log file size)
File size (log) 2TB
Foreign key table references per table 253
Identifier length (in characters) 128
Instances per computer 16
Length of a string containing SQL statements (batch
size)
65,536 × network packet size
Locks per connection Maximum locks per server
Locks per instance of SQL Server Up to 2,147,483,647
Nested stored procedure levels 32
Nested subqueries 32
Nested trigger levels 32
Non-clustered indexes per table 999
Parameters per stored procedure 2,100
Parameters per user-defined function 2,100
REFERENCES per table 253
Rows per table Limited by available storage
Tables per database Limited by number of objects in a database
Partitions per partitioned table or index 1,000
Statistics on nonindexed columns 30,000
Tables per SELECT statement^256
Triggers per table Limited by number of objects in a database
User connections 32,767
XML indexes 249
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