Organize your custom scripts into the existing folders or create a new folder structure. The Database Engine Query editor also supports code snippets, which can be inserted at specific locations in a script by right-clicking at that location. Skip to main content. This browser is no longer supported. Download Microsoft Edge More info. Contents Exit focus mode. Please rate your experience Yes No. Any additional feedback? This way, we do not need to go through each line of code, look for the variable, and assign value.
It also saves time and eliminates human errors. You can run the script directly, and it creates a database for you. You specified only a few parameters values, and your script is ready. Launch this template and view the query with variables. In a stored procedure, we define the variable and its data types such as int, varchar , char, float. In the below template, we see that it asks for data types of both variables param1 and param2.
Now, launch the specify values for template parameters, as shown below. Here, we see that it defines variable data types. By default, it uses int data type. We can change the data type as per our requirement. It is a text box, and you can write the data type. It should be a valid data type as per the SQL Server version.
Click OK, and you can see changes in the script. SSMS allows you to define your script templates. It is an excellent way to define your scripts and frequently used scripts such as procedure, function, views. For this demo, I am using the alter stored procedure template code and saving it as a new custom template.
Suppose you want to create a template to alter a stored procedure. Right-click on the Stored Procedure folder and choose to select a new Template. You may want to add a quick-check test batch that you can execute when you make a minor routine change. Headers need to support extensible lists, so you can make lists of revisions, parameters, examples of use and so on. Databases already hold a lot of information that is normally in code headers, such as when the routine was first created, when last modified, its parameters if any, what its dependencies are, and what objects it is dependent on.
I generally add these if necessary when extracting the documentation. There is no point in keeping all this documentation if it cannot be published in a variety of ways. This usually means extracting the contents of structured headers, along with the DDL for the routine, as an XML file and transforming that into the required form. Regrettably, because there are no current standards for structured headers, no existing SQL Documenter app is able to do this effectively. Several applications can publish prettified versions of the SQL code, but none can directly use such important fields of information as summary information or examples of use, though SQL Doc can display them.
NET and F. The compilers can add information that it gains by parsing the source file and then placing the result into XML files called XML Documentation Comments.
These are then used for Visual Studio Intellisense and the object browser, and can be imported into applications such as Doxygen or Sandcastle to convert them into help files. NET procedural language. The standard has not been adopted with much enthusiasm except for the three items of information Summary, Params and Remarks that are used by Visual studio. The basic tags used in XMLdocs are appropriate for most purposes, but if you are doing your own processing of the results, you can add to them.
Unlike most forms of structured documentation, XML documentation is usually inserted immediately before the definition of the component that you are documenting. Refers to another file that describes the types and members in your source code. This can include a XPath spec to explain where in the file the compiler should go to get the information. Not all these tags require their contents to be filled in, since information such as the parameters and the permissions is easily retrieved.
With the Microsoft. NET languages, the compiler will fill in the details that it can. In order to try to persuade you that this is not a good standard to adopt, here is a very simple SQL Server Stored Procedure with the barest minimum of documentation..
It is awkward. It makes the code hard to read. You are liable to miss important information. More modern approaches to structured text, such as YAML, provide a far easier and more intuitive approach, and allow for a much more versatile way of handling paragraphs of text. If you want a human-oriented approach to headers, YAML seems a better design.
However, other approaches can be modified with little change. The SSMS templates need just a slight adjustment. These are provided for you to fill with the required parameters , The content between the chevron brackets is filled in by SSMS as part of the templating process and is not part of YAML. In our example, we have placed the comments in a structured header at the head of the text of the routine.
Here is our next problem: Only the text for Check constraints, Defaults constraint or stand-alone , stored procedures, scalar functions, ,Replication filter procedures , DML triggers, DDL triggers, inline table-valued functions, table-valued functions, and Views are retained: The comments for tables, indexes and columns are lost. Whereas all. This may or may not present a problem.
There are two basic ways of developing databases; one where the script is always the primary source, and the other where the database is, at times, considered to be the source. The first method of developing databases involves maintaining one or more build scripts which contain all the comment blocks and inline comments. This is used to generate the database, but the process is never reversed.
If, therefore, you need to describe the parameters that you pass to routines, give examples of their use, give a revision history of the routine and so on, then it suddenly all gets more difficult unless you store the information in a structure and store that structure in an extended property. SSMS is fine for maintaining this type of extended property. SQL Doc will display this as well but cannot parse it. Now we are able to attach documentation to all our database objects. With extended properties, you can now document almost any conceivable database object, except for Full-text objects, objects outside the database scope such as HTTP end points, unnamed objects such as partition function parameters, certificates, symmetric keys, asymmetric keys, and credentials and system-defined objects such as system tables, catalog views, and system stored procedures.
We need some way of distinguishing ordinary comments, and structured headers. It is not a complete table script, but provides enough for exploring a database.
Now, how about reporting from our structured headers? Before we think about parsing the structured information, we have to consider how to extract the extended properties. Mercifully, Microsoft added a system catalog view called sys. Having extracted our documentation, what can we do with it? It is a means of serializing both objects and relational data in a way that is reasonably intuitive.
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