Read e-book online From Access to SQL Server PDF
By Russell Sinclair
Although Microsoft's entry Database is very renowned and sufficient for smaller scale functions, many entry builders are gaining knowledge of that their functions desire a extra strong, enterprise-ready database method like SQL Server. This booklet is designed as a advisor for entry programmers seeking to make this transition, yet who've very little previous adventure with SQL Server.
Veteran author Russell Sinclair starts off via discussing SQL Server, its structure and alertness surroundings, and its changes from entry. He offers assurance of key issues together with safeguard, info garage, method databases, database gadgets, and queries.
- Illustrates top practices for migrating entry databases to SQL Server
- Carefully explains the diversities among those platforms and the adjustments wanted for a delicate migration
- Assumes no earlier wisdom of SQL Server
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Even if Microsoft's entry Database is intensely well known and sufficient for smaller scale purposes, many entry builders are studying that their purposes want a extra strong, enterprise-ready database procedure like SQL Server. This publication is designed as a consultant for entry programmers seeking to make this transition, yet who've very little earlier adventure with SQL Server.
Additional info for From Access to SQL Server
You can replicate external data into SQL Server or replicate SQL Server data to these data sources. The number of OLE DB drivers available is growing and includes such systems as AS/400, Oracle, Sybase, Btrieve, and Infonnix. Any of these systems can be replication partners with SQL Server using the built-in capabilities of SQL Server. If multi-system replication is a requirement for a system, SQL Server's capabilities can be used to justify a migration. Reasons Not to Migrate Just as there are reasons to migrate an application to SQL Server, there are also reasons not to migrate an application.
Number of Users Due to Access's problems with multi-user access, SQL Server is often a viable alternative to using Jet. Access tends to run into problems with more that 10 concurrent users. SQL Server can handle thousands of concurrent users and can help administer them much better than Access can. If you are building a large system where 32 Why Migrate? there are many different types of users, SQL Server can make it easier for administrators and users to add and remove logins with appropriate permissions.
If the data does not have a unique index that Access can use or is not designed to be updateable (through security or some other definition), Access retrieves all of the fields and rows requested. This ODBC data is returned as a snapshot-type recordset. This type of recordset cannot be updated. Storing and working with the entire recordset in Access does require more memory to be used locally, but the benefit is that Access does not maintain a constant connection to the server. Because the connection to the server does not need to be maintained in order to work with the recordset, network traffic is reduced.
From Access to SQL Server by Russell Sinclair