barcode generator vb.net free Interaction with the SQL Server Environment in Software

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Interaction with the SQL Server Environment
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page. We will talk about templates later. In this case, just let SQL Server help you to format the page. Click Next to continue. 11. The next page lets you specify titles for the page and the table, and specify font sizes for those titles. Click Next to continue. 12. The next page lets you specify the formatting of the table containing the resultset. You can change the font style, decide whether you want to display columns, and choose whether you want borders around the table. Click Next to continue. 13. The next page prompts you to add one or an entire list of hyperlinks to the page. If you specify a list, it should be the result of a query that returns labels and links as columns of the resultset. Click Next to continue.
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SQL Server 2000 Stored Procedure Programming
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14. The next page provides options that are helpful if the table is very long. You can limit the number of rows that you want to display on the page or decide to create a set of linked pages with a specified number of rows on each. Click Next to continue.
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15. The final page allows you to save and execute the command for creating the Web task that you have defined. Click the Write Transact SQL To File button to save the script created by the wizard, or click Finish to execute the script immediately.
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Web Task Stored Procedures
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Everything that the Web Assistant does can be accomplished using a set of three stored procedures:
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sp_makewebtask sp_runwebtask sp_dropwebtask
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These stored procedures are designed to manage Web tasks, which are just regular jobs. You can see them in the SQL Server Agent s list of jobs.
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11:
Interaction with the SQL Server Environment
NOTE: The reason these stored procedures use webtask in their names is that they were introduced in SQL Server 6.5. At that time, jobs were called tasks.
sp_makewebtask
This stored procedure creates a job that produces an HTML document containing the resultset of a query (or a stored procedure). The syntax of the command looks terrifying:
sp_makewebtask [@outputfile =] 'outputfile', [@query =] 'query' [, [@fixedfont =] fixedfont] [, [@bold =] bold] [, [@italic =] italic] [, [@colheaders =] colheaders] [, [@lastupdated =] lastupdated] [, [@HTMLHeader =] HTMLHeader] [, [@username =] username] [, [@dbname =] dbname] [, [@templatefile =] 'templatefile'] [, [@webpagetitle =] 'webpagetitle'] [, [@resultstitle =] 'resultstitle'] [ [, [@URL =] 'URL', [@reftext =] 'reftext'] | [, [@table_urls =] table_urls, [@url_query =] 'url_query'] ] [, [@whentype =] whentype] [, [@targetdate =] targetdate] [, [@targettime =] targettime] [, [@dayflags =] dayflags] [, [@numunits =] numunits] [, [@unittype =] unittype] [, [@procname =] procname ] [, [@maketask =] maketask] [, [@rowcnt =] rowcnt] [, [@tabborder =] tabborder] [, [@singlerow =] singlerow] [, [@blobfmt =] blobfmt] [, [@nrowsperpage =] n] [, [@datachg =] table_column_list] [, [@charset =] characterset] [, [@codepage =] codepage]
SQL Server 2000 Stored Procedure Programming
Fortunately, there is usually no need for you to start populating all these parameters by hand. Use Web Assistant to specify everything and save the command during the final step of the wizard. You can later modify it using Query Analyzer. The @whentype parameter specifies when the Web task should be executed. The default value is 1, meaning that a Web task should be created and executed immediately. A job will actually be created, executed, and then deleted. However, most of the other settings will leave the job for SQL Server Agent to launch. When sp_makewebtask is executed, several database objects may be created. A new record is added to the list of jobs in the msdb database. A new stored procedure is created in the database specified by the @dbname parameter. The new stored procedure has the same name as the job. It encapsulates the query that returns the recordset to be published (@query). If the Web task is designed to update a Web page whenever underlying data changes, the wizard also creates a trigger to run the job. For discussion of other parameters, consult SQL Server Books Online.
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