Sign in to vote. After downloading the software from the volume licensing center seems that CDW no longer ships media for MS, that is another issue , I installed , rebooted, looked at the startup menu, and noticed that nothing had changed. I search for "isqlw. The main reason for buying the Standard was to have the full version instead of the compact version which should have given me more capabilities and tools.
Specifically, Query Analyzer and database modification on the fly. So the question is, where is the query analyzer? Friday, June 10, PM. Proposed as answer by Alan. Gim Wednesday, June 15, AM. You are now ready to write SQL queries against your database. You can use this interface to create database objects such as databases, tables, views etc , insert data into a database table, select data, update data, delete data.
The following screen shot shows an example of using a SQL 'select' statement to select data from a database:. When I started creating the above example, I forgot the name of the table that I wanted to select data from. That wasn't a problem.
All I needed to do was navigate through the Object Browser until I saw the names of the tables in the left pane. Once connected, you can type the following to switch to your database:. Next, click the play button on the menu bar or highlight the text and press F5.
Either option executes the highlighted SQL. The SQL trace from Profiler can be copied into Query Analyzer and you can then see exactly what that particular query is doing. Next, highlight the SQL to execute and press F5. Figure 3 shows my results. Immediately below the SQL query that was executed is the results grid, which shows what is returned by the query.
In this case there are two resultsets returned. The first resultset is a list of Sections forums and the second one is a set of permissions. Community Server uses a role-based permissions system to control what users can or cannot do within the system. Whenever a list of Sections is retrieved, the system also refreshes its list of permissions for those sections.
At the bottom right of Query Analyzer you see the text: " rows". This indicates the total number of rows returned. In this procedure, there was a bug in the permissions logic which would cause the system to return a list equivalent to total roles multiplied by the total sections.
In the case of forums. Add the rows returned by the first resultset and you get a grand total of 5, rows returned. Obviously this is far too many rows. In fact, by using Profiler and Query Analyzer, this particular Query was optimized to return less than total records—cutting the duration to less than ms. In addition to running queries, Query Analyzer allows you to analyze a query. Recall that you enabled the showing of the execution plan before executing the SQL.
The plan provides a visual diagram of how SQL Server is executing your query, what indexes it uses, and other data that can help you optimize indexes or other data needed by SQL Server to enhance query performance. Figure 4 shows each query executed, its execution plan, indexes used, joins, and the amount of data returned from each operation. Even the arrows between each item have significance: the thickness of the arrow is a visual indication of how much data is returned by that operation; that is, a poorly tuned query might have many thick arrows indicating operations which are likely returning too much data.
Not only should they be part of a developer's tool belt, but these powerful tools should also be used routinely to inspect the application's overall performance. Too often developers will focus on optimizing routines within their code when eliminating or optimizing cross-process communications, such as database calls, would be a much better use of time.
It is a truly fascinating technology. If you are fortunate enough to have a DBA on your staff, ask them to show you how your application interacts with the database—you'll learn a lot! Send your questions and comments for Rob to xtrmasp microsoft.
Rob Howard is a founder of Telligent Systems, specializing in high-performance Web apps, knowledge management, and collaboration systems. NET 1. You can contact Rob at rhoward telligentsystems. Skip to main content. This browser is no longer supported. Download Microsoft Edge More info. Contents Exit focus mode.
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