T-SQL Debugger in Query Analyzer in .NET framework

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T-SQL Debugger in Query Analyzer
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Query Analyzer in SQL Server 2000 also contains a T-SQL Debugger. It seems that Microsoft has decided to resolve its support nightmare that was introduced with the setup and configuration of the T-SQL Debugger in Visual Studio by providing a tool in Query Analyzer that is much more robust, as well as easier to configure.
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7: Debugging and Error Handling
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Breakpoints in the T-SQL Debugger
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Requirements The requirements for using the T-SQL Debugger in Query Analyzer are quite simple: You must have Microsoft SQL Server 2000 installed (any version other than the Desktop Engine or Desktop Edition). Microsoft SQL Server 2000 must be running on Windows NT 4 Server or Windows 2000 Server (or higher). Client-side tools must be installed on workstations with Windows 98, Windows ME, Windows NT 4, or Windows 2000. Configuration T-SQL Debugger setup is quite simple. Just make sure that you select the Debugger Interface from among the Development Tools during SQL Server setup. If you did not select it during the initial setup, you can simply run Setup again and add this component.
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SQL Server 2000 Stored Procedure & XML Programming
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Using the T-SQL Debugger in Query Analyzer The T-SQL Debugger in Query Analyzer has features similar to the Visual Studio Debugger. Although the interface is a little different, it is quite intuitive. To use it, follow these steps:
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1. Open Query Analyzer and connect to the database. 2. Use the Object Browser or Object Search to find a target stored procedure. 3. Right-click the stored procedure and choose Debug from the pop-up menu.
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Query Analyzer prompts you to supply parameters for the stored procedure:
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4. Click each parameter in the Parameters list and type the value. When you are
done, click Execute; SQL Server launches the T-SQL Debugger window (see Figure 7-5). The T-SQL Debugger opens the source code for the procedure and pauses on the first executable statement. A small yellow arrow on the left border marks the position of the statement to be executed next. You will not be able to edit the stored procedure s code, but you can use buttons on the window s toolbar to step through the stored procedure, and you can use the panels in the lower part of the window to investigate local and global variables, view the callstack, and view the result of the procedures. The left section of the middle portion of the window allows you to monitor, and even set, values for local variables and parameters of the stored procedure. The middle section allows you to monitor values of global variables. Naturally, all values are not initially present, but you can type them yourself. The right section lists (nested) procedures in the order in which they are called. The lower part of the window displays the result as it would be in the Results pane of the Query window.
7: Debugging and Error Handling
Figure 7-5
The T-SQL Debugger window in Query Analyzer
The buttons on the toolbar of the T-SQL Debugger window control the execution of the code. Most of the time you will use the Step Into and Step Over buttons. These commands have the same effect as those in Visual Studio they allow you to execute one Transact-SQL statement at a time. Again, the difference between them is in the way they behave when they encounter a nested stored procedure (a procedure that is executed from the procedure that you are debugging). If you choose Step Into (F11), the T-SQL Debugger opens the code of the nested stored procedure and lets you step through it. If you choose Step Over (F10), the nested stored procedure is treated as any other Transact-SQL statement and is executed in a single step. The Step Out (SHIFT-F11) command enables you to execute the rest of the nested stored procedures without pause and halts only when the stored procedure is completed in the calling stored procedure. Run To Cursor (CTRL-F10) enables you to position the cursor somewhere in the code and to execute everything to that point in a single step. It is also possible to use breakpoints in Query Analyzer. As explained earlier, breakpoints are markers in code that serve to stop execution when certain conditions are met. In the T-SQL Debugger, the only such condition is when the execution has
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