Category: SQL

Import existing EPiServer users into an empty database – EPiServer 7.5

Here is a short guide for importing users from an existing EPiServer site into an empty EPiServer site. And then setup the default user groups and access rights. This is for EPiServer 7.5 using the standard Sql Membership but will probably work fine with newer EPiServer versions as well.

Create empty db

Run deployment center as administrator -> select create Sql db.

Importing users from old/other db:

How to copy table data, see this guide: https://www.sqlshack.com/how-to-copy-tables-from-one-database-to-another-in-sql-server/
The tables are named like: aspnet_Applications

Marked in bold are the tables that was used by my EPiServer 7.5 installation (the other tables where just empty). This is the order used, (see the link above), making sure the Users table is uploaded early on is important.

1. Application
2. Users
3.Membership
4.Paths
5.PersonalizationAllUsers
6.PersonalizationPerUser
7.Profile
8.Roles
9.Events
10.UsersInRoles (watch out for FK constraints to Users and Roles)
11.SchemaVersions (identical between same EPiServer db versions)

Create users and roles from scratch

Override the access protection to EPiServer admin until valid admin user and user groups are created:

Find location elements in web.config and comment out:

Comment out the <authorization> element entirely (removes the access protection). The same for location:

Goto http://mysite.local/epi/CMS/Admin/Default.aspx or similar for epi admin area.

Create new roles in admin: (these are EPiServer defaults)
WebEditors
WebAdmins

Add your admin user  to WebEditors and WebAdmins group.

Goto admin “Set access rights”

Set correct access rights for editors and admin groups.
Check lower checkbox to make descendant content inherit the rights.
Also “Everyone” group should have Read access on root and downwards.

Set this in web.config:

PagestartId should be root id.

Uncomment the authorization for /epi and /epi/cms/admin (enable the authorization again).

Login with you admin user
Create a start page or import an episerver export xml file.
Run  [mysite.local]/epi/CMS/Admin/IndexContent.aspx to update search index if imported content.

Goto site settings in admin and point out the page as start page. And/or set in web.config

(usually becomes 4)

Goto site settings in admin and point out the all site hosts (dev, test, prod etc).
Add more users such as editors and adminstrators that need access to site.

How to fetch the row count for all tables in a SQL SERVER database

The following SQL will get you the row count of all tables in a database:

The output will be a list of tables and their row counts.

If you just want the total row count across the whole database, appending:

will get you a single value for the total number of rows in the whole database.

Source: How to fetch the row count for all tables in a SQL SERVER database – Stack Overflow

How to migrate a SQL Server database to a lower version

…there are a few options that can help us to downgrade the database from a higher version of SQL Server to a lower version SQL Server. These options include:

  • Generate Scripts wizard of SQL Server Management Studio
  • SQL Server Integration Services
  • Custom scripting and BCP

In this tip we will use the Generate Scripts wizard of SQL Server Management Studio.

Source: How to migrate a SQL Server database to a lower version

Deleting Data in SQL Server with TRUNCATE vs DELETE commands

TRUNCATE TABLE is a statement that quickly deletes all records in a table by deallocating the data pages used by the table. This reduces the resource overhead of logging the deletions, as well as the number of locks acquired; however, it bypasses the transaction log, and the only record of the truncation in the transaction logs is the page deallocation. Records removed by the TRUNCATE TABLE statement cannot be restored. You cannot specify a WHERE clause in a TRUNCATE TABLE statement, it is all or nothing. The advantage to using TRUNCATE TABLE is that in addition to removing all rows from the table it resets the IDENTITY back to the SEED, and the deallocated pages are returned to the system for use in other areas.

In addition, TRUNCATE TABLE statements cannot be used for tables involved in replication or log shipping, since both depend on the transaction log to keep remote databases consistent.

TRUNCATE TABLE cannot used when a foreign key references the table to be truncated, since TRUNCATE statements do not fire triggers. This could result in inconsistent data because ON DELETE/UPDATE triggers would not fire. If all table rows need to be deleted and there is a foreign key referencing the table, you must drop the foreign key and then recreate it.

Source: Deleting Data in SQL Server with TRUNCATE vs DELETE commands

IEnumerable VS IQueryable

 

While query data from database, IQueryable execute select query on server side with all filters (e.g SQL select statement on database server). IEnumerable filters the data on client side. (in memory in application)

IEnumerable Example

  1. MyDataContext dc = new MyDataContext ();
  2. IEnumerable<Employee> list = dc.Employees.Where(p => p.Name.StartsWith(“S”));
  3. list = list.Take<Employee>(10);

Generated SQL statements of above query will be :

  1. SELECT [t0].[EmpID], [t0].[EmpName], [t0].[Salary] FROM [Employee] AS [t0]
  2. WHERE [t0].[EmpName] LIKE @p0

Notice that in this query “top 10” is missing since IEnumerable filters records on client side

IQueryable Example

  1. MyDataContext dc = new MyDataContext ();
  2. IQueryable<Employee> list = dc.Employees.Where(p => p.Name.StartsWith(“S”));
  3. list = list.Take<Employee>(10);

Generated SQL statements of above query will be :

  1. SELECT TOP 10 [t0].[EmpID], [t0].[EmpName], [t0].[Salary] FROM [Employee] AS [t0]
  2. WHERE [t0].[EmpName] LIKE @p0

Notice that in this query “top 10” is exist since IQueryable executes query in SQL server with all filters.

 

Source: IEnumerable VS IQueryable

ExpressProfiler (aka SqlExpress Profiler) – Home

ExpressProfiler (aka SqlExpress Profiler) is a simple and fast replacement for SQL Server Profiler with basic GUI and integration with Red Gate Ecosystem project.

Can be used with both Express and non-Express editions of SQL Server 2005/2008/2008r2/2012/2014 (including LocalDB)
Distribution package contains both standalone version of ExpressProfiler (can be used without installation) and installation package.

ExpressProfiler – Home.

Set up SQL Server on home network – Stack Overflow

Step by step from Stack overflow.
Trouble finding SQL Server Configuration Manager?
Its at “C:\Windows\System32\SQLServerManager11.msc” (2012)
or “C:\Windows\System32\SQLServerManager10.msc” (2008)
———————————————

Test Open Port The network on your LAN, can you ping SQL Server remotely on the default port 1433 on the specific IP Address (you can use PuTTY or Telnet to check this)

SQL Configuration Manager Check SQL Configuration Manager and see if the Network Protocol for SQL is enabled for TCP/IP, Named Pipes or Shared Memory

Firewall and Default Port Check the Windows Firewall make sure its allowing 1433. Since you are testing, best thing to do is to disable the Firewall in Windows Services to confirm whether its a firewall issue or not.

SQL Server Browser SQL Server Instances (instances have the form SERVER\SQLEXPRESS or SERVERNAME\SQL1 for example). Check in services and makes sure the “SQL Server Browser” is running. Also, you must allow a Firewall rule for port 1434, which is the default port of the “SQL Server Browser”. This is necessary because the SQL Server maps and forwards the traffic based on the Instance Name, so this is the service that resolves the instance name.

SQL Server Instance Port Varies SQL Server Instances does not necessarily run on port 1433, in this case you will have to have the SQL Browser Running which maps the name to the port and directs traffic to the correct instance. In your firewall, instead of allowing port 1433, you will have to allow sqlservr.exe Executeable Program. The port also can be determined by looking at the SQL Server log File in the MSSQL\LOG folder in Program Files. There will be an entry for “Server is listening on port …”

My recommendation for you is to install SQL Server Express Management Studio (SSMS) which is the GUI interface to manage the SQL Server Express instance. The link is below for both SQL Express and SQL Management Studio. And see if you can connect to the servers that way first. Another suggestion is for you to install both on a Local Computer and simply familarize yourself with SQL Server first before exposing it on the Network.

http://www.microsoft.com/en-us/download/details.aspx?id=29062

via webserver – Set up SQL Server on home network – Stack Overflow.