Microsoft Sql Server 2005 Default Sa Password
Optimizing Microsoft Office Access Applications Linked to SQL Server. Andy Baron. November 2.
First, forget about Access. SQL Server is a server, like a mail server (Exchange) and so there isn't "a user" or a default. It doesn't matter if SQL is on the same pc.
So you’ll notice in the output nmap is reporting the version of mssql to be SQL Server 2005 which is correct in this case. Knowing the version is very important. November 2006. Applies to: Microsoft SQL Server 2005. Summary: One way to create applications that use Microsoft Office Access for creating user.
Applies to: Microsoft SQL Server 2. Summary: One way to create applications that use Microsoft Office Access for creating user interfaces and that use Microsoft SQL Server for data storage is to link Office Access tables to SQL Server tables. This is the type of application created by using the SQL Server Migration Assistant for Office Access. This white paper presents techniques for improving performance and updatability in Office Access applications that use tables linked to SQL Server. The most common way this is done is by creating linked tables in Office Access that use the SQL Server ODBC driver to connect to tables in SQL Server databases.
The SQL Server Migration Assistant (SSMA) for Office Access enables you to convert an Office Access database to this type of application by moving your Office Access data to new SQL Server tables and linking to these tables. Any forms, reports, queries, or code that previously worked with the original Office Access tables are automatically connected to the new SQL Server tables. In an application that uses linked SQL Server tables, two different database engines are at work: the Office Access/Jet database engine that runs on the Office Access client and the SQL Server database engine. The interaction of these two engines can sometimes yield results that are inferior to those obtained by using only the Jet database engine with native Office Access tables. This white paper discusses several of these issues and presents strategies for resolving them.
Most of these issues relate to performance or updatability. Understanding and Addressing Performance Issues. Developers often migrate data to SQL Server expecting an improvement in application performance. Although performance does often improve, there are many cases where it remains the same or even degrades.
In some cases, performance of certain queries degrades to an unacceptable level. The major cause of query performance degradation is when a query involving very large tables requires that all of the data from one or more tables be downloaded to the client. This can happen even when joins or criteria appear to limit the result set to a small number of records. This occurs because sometimes the Office Access database engine determines that it cannot submit an entire query to SQL Server. Instead, it submits multiple queries, often including queries that request all of the rows in a table, and then it combines or filters the data on the client.
If the criteria require local processing, even queries that should return only selected rows from a single table can require that all the rows in the table be returned. The primary strategy for improving performance is to minimize the amount of data returned to the Office Access client and maximize the amount of processing that occurs on the server. To accomplish this, you need to be able to analyze the SQL commands that Office Access is submitting. Diagnostic Tools. There are two tools that you can use to see how Office Access is communicating with SQL Server. To listen in on the conversation from the server side, you can open the SQL Server Profiler and create a new trace.
Select a template that shows TSQL to see all the statements being processed by the server. From the client side, you can edit a Microsoft Windows registry setting that allows you to see the commands that the Office Access database engine is submitting to ODBC.
As always, be very careful when editing the Windows registry. For more information on backing up and editing the registry, see How to Modify the Windows Registry. To enable tracing of all ODBC commands from the Jet database engine. From the Windows Start menu, select Run.
Type Regedit to open the Registry Editor. If you are using a version of Office Access prior to Office Access 2. Registry Editor. If you are using Office Access 2. Unless you delete this file or its contents, it continues to grow as new queries are executed and the tracing activity degrades performance. It is very important to return to the Registry Editor and turn the feature off by changing the Trace.
SQLMode setting back to 0 when you are done testing. Running SQL Profiler also has a negative impact on performance, so try to avoid using it on a production server and close your Profiler traces when you are done testing. Before you can make productive use of these diagnostic tools, you must understand how Office Access interacts with SQL Server. Without that understanding, the SQL statements that you see in Profiler traces and in Sqlout logs can be quite puzzling. Understanding Dynasets.
When you observe how Office Access communicates with SQL Server over ODBC, you will notice that most queries are executed very differently from the way you would expect. For example, if you migrate the Northwind data to SQL Server, link to the tables, and open the Shippers table in datasheet view while tracing is enabled, you probably expect to see a simple query such as SELECT * FROM Suppliers, or perhaps a query that includes the schema name with the table, dbo. Suppliers, and that explicitly names the three columns in the table. Instead, both the Sqlout. SQL Profiler trace show that three statements are executed. The following is what is written to Sqlout. All the quotation marks that you see around object names are comparable to the brackets that Office Access uses (and that also can be used in SQL Server) to handle spaces or other illegal characters in names.
SQLPrepare is used to define a parameterized query that is then executed with SQLExecute. The question marks are placeholders for parameters. MULTI- ROW FETCH indicates that parameter values are submitted, based on values retrieved by the first query, to retrieve up to 1. A Profiler trace shows the three corresponding Transact- SQL statements that are processed on the server. In the first step, Office Access picks a .
This is often referred to as a keyset. Then Office Access prepares a parameterized SQL statement to select all the columns in the table or query for 1. The final step is to execute this statement, which is assigned a number on the server (6 in the example), as many times as needed, passing in 1. If there are two columns in the bookmark, 2.
In this example, there are only three rows in the table, so the final bookmark value, 3, which corresponds to the last Shipper. ID in the table, is submitted eight times, because the rows are always fetched in sets of 1. The statement that fetches 1. The remaining rows are not fetched immediately unless the user performs an action such as scrolling that brings additional rows into view.
In the background during idle time, the remaining rows are gradually filled in until the recordset is complete. In addition, any rows that remain visible are continually refreshed according to a configurable refresh interval that defaults to 6.
Long memo and OLE object values are retrieved in separate queries only when then their columns and rows are visible. Dynasets support a continuous two- way conversation between Office Access and SQL Server for each recordset that is open. The rows that are visible are continually refreshed to show the latest data, creating extra network traffic. However, the dynamic nature of these recordsets can also reduce traffic by immediately retrieving only those rows in the vicinity of data the user is actually viewing. If you create a form that is bound to a table containing a million rows of data (not a recommended practice) and the form shows the data from only one row at a time, only 2.
If the user keeps only the first record visible, Office Access continually retrieves the first 1. If the form is left open long enough, all the rows are eventually retrieved during idle time in many separate batches, but a snapshot retrieves all the rows right away. Because they work with only a few rows at a time, dynasets minimize the duration that read locks are held on the server.
Managing SQL Server Express with SQL Server 2. Management Studio Express Edition. Published: April 1. SQL Server Technical Article. Writers: Eric Brown, Senior Consultant Quilogy Inc. Published: March 2. Applies To: SQL Server 2.
Summary: Learn how to manage SQL Server 2. Express Edition by using the free graphical management tool, SQL Server 2.
Management Studio Express Edition (SSMSE). Developers and administrators will learn how to use SSMSE features to simplify, automate, and reduce the complexity of database support and administration. Prerequisites: SQL Server 2. Express Edition. SQL Server 2. Management Studio Express Edition November CTPOn This Page. An Introduction to SQL Server Management Studio Express Edition.
Basics of Database Administration. Disaster Preparedness.
Advanced Database Administration. Conclusion. Resources An Introduction to SQL Server Management Studio Express Edition. SQL Server 2. 00. Management Studio Express Edition (SSMSE) provides the database developer and administrator with a robust set of tools for working with Microsoft. Based on the same technology and functionality as that in SQL Server Management Studio, SSMSE uses Microsoft Visual Studio. This familiar interface allows . NET developers to be productive more quickly.
The features in SSMSE are limited to those that are needed to manage a SQL Server 2. Express Edition database. While you can use SSMSE to manage other editions of SQL Server 2. SQL Server Express. For example, you can connect only to the relational database engine only by using SSMSE because other services are not installed with SQL Server Express. SSMSE and SQL Server Management Studio (SSMS) cannot be installed together. If multiple editions of SQL Server are installed on your computer, you can only use SSMS and not SSMSE.
Getting started. The next sections provide a tour of the features in SSMSE. Because of its graphical user interface, many SSMSE features can be accessed simply by right- clicking. You can accomplish many tasks by using both script and dialog boxes. The beginning developer can use dialog boxes to accomplish basic tasks. By design, SQL Server always creates a default state that is secure and functional. Changes to default settings are for the purpose of setting up the database for the unique needs of users and applications.
Assuming that SQL Server 2. Management Studio Express Edition is installed, let’s start by connecting to an instance. Connecting to servers. This section covers how to connect to an instance of SQL Server Express. The Connect to Server dialog box allows users to provide both logon credentials and specific connection properties. You can use it to connect directly to SQL Server Express. For the authentication method, you can choose either SQL Server Authentication or Windows Authentication.
By default, this is set to Windows Authentication. There are two tabs on the Connect to Server dialog box: the Login tab and the Connection Properties tab. To view the Connection Properties tab, click the Options button. Use the Connection Properties tab (shown in Figure 1) to input authentication credentials and server name.
Figure 1: Connection Properties tab. In the Connect to Server dialog box, you make choices about which database to connect to and the network method (TCP/IP, Named Pipes, or shared memory) to use. Windows 7 Pro Sp1 Vl X64 Base Vmware Image Extension.
You can use the dialog box to encrypt your connection. The dialog box has some additional settings, such as the connection time- out and network packet size. The default network protocol is shared memory protocol. If the database resides locally and will not receive connections over the network, this is the correct protocol to use.
If you are connecting to a remote instance of SQL Server Express, change this to TCP/IP. Typically, there is no reason to change the default packet size. If you know that your connection might take more than 1. You can press the Test button and incrementally change the time- out until you connect successfully. You can set the startup option to Open Empty Environment, which lets SSMSE start up faster.
To do this, on the Tools menu, select Options. Select Environment, and then General. After you start up SSMSE, double- click the registered server to connect to and you will not need to interact with the connection dialog box.
Organizing your database servers. The primary means for organizing multiple database servers is the Registered Servers window. The Registered Servers window lists the SQL Server instances that are currently registered in SSMSE. Once the connection to the database server is established, you see a number of windows. You can review the set of server connections (or shortcuts to servers, if you prefer to think of it that way) under the registered server in the Registered Servers window. If the Registered Servers window is not visible, from the Views menu, select Registered Servers.
You can create a server group, which can include a list of individual registered servers. In a hosting environment, where a single database server may have multiple SQL Server Express instances installed, server groups allow you to work across servers in an efficient manner. For example, Figure 2 shows a folder called Express Servers. In that folder are two servers.
Figure 2: Registered Servers window. You can use the Registered Servers window to: Stop, start, pause, or restart an instance of SQL Server Express. Connect to a new query window. Connect to a new Object Explorer window. Open SQL Server Configuration Manager. You can also alter the properties of the servers that are registered.
To do so, right- click the server to modify, and click Properties. Making the most of Object Explorer. Object Explorer is your home base for working with a database. When you click the plus symbol next to a database, only those objects that are directly related to the database are shown. The user privileges for the login that is used to connect to the database dictate which objects are available. If you are not connected initially to a database, you can connect by clicking the connection button in the upper- left corner of the Object Explorer window.
Figure 3 shows the various objects that are available for us to work with. The System Databases folder, under the Databases folder, separates system databases because SQL Server uses them to manage database processes. Figure 3: Object Explorer. From within Object Explorer, you can click any database icon and see another set of folders. In Figure 4, the database has its own set of database diagrams, tables, views, synonyms, and more.
Figure 4: Database- level features. To display any objects stored in a folder, click the folder. The Programmability folder contains stored procedures, functions, database triggers, assemblies, user- defined types, rules, and defaults. The Types folder in the Programmability folder contains both system and user- provided data types. If you create a data type, you manage it from within this folder. One of the best ways to become acquainted with SSMSE is to use it to create a database and set up a real- world administration system.
Creating a database. There are multiple ways to create a database in SQL Server 2.
My personal favorite is to right- click the Databases folder and select New Database. This displays the New Database dialog box. This dialog box provides an easy way to specify database settings. There are three tabs in the dialog box. The General tab supplies the database name text box. The Options tab contains settings such as auto- shrink, auto- close, cursor behavior, and recovery and state values.
For most purposes, you can leave these values at their default settings. The standard values work for the most common database usage scenarios. Figure 5 is an example New Database dialog box. Figure 5: New Database dialog box On the Filegroups tab, you provide filegroup allocations. The New Database dialog box is nonmodal and provides the option to script all the settings to a Query Editor window, a file, or the Clipboard.