cognos data item expression

statisticsThe basic description of the 7.2.1 algorithm includes: definition, symbolic interpretation, and concrete calculation method. 7.2.1.1 Algorithm DescriptionIn conducting a series of independent experiments, each has both success and failure, and the probability of success in a single experiment is equal. The number of successes in a series of trials. This scenario applies to this algorithm.In this algorithm, the N-Times Bernoulli test: The probability of R success, the expectation of tw

Problem: You want to sort by some conditional logic. For example, if the job is "salesman", Sort by comm.Solution: Use a CASE expression in an ORDER BY clauseSelect Ename,sal,job,comm from empOrder BY case-job = ' salesman ' then comm else Sal EndDiscuss:You can use case expressions to dynamically change how the results are sorted. The value passed to order by is similar to this:Select Ename,sal,job,comm,case If job = ' salesman ' then comm else Sal E

way we want) We actually omitted the 3rd step in yesterday's case, the "take" step. Because the data we have down is the entire Web page, the data is huge and confusing, and most of the stuff doesn't concern us, so we need to filter and match it to our needs.Then for the text of the filter or rule matching, the most powerful is the regular expression, is th

When the DataBind method of the control or Page class is called, the data binding expression is parsed. Some controls, such as the GridView, DetailsView, and FormView controls, automatically parse the data binding expression during the PreRender event of the control and do not need to explicitly call the DataBind meth

likely that Javascript on the client will not accurately verify the various types of user input data, while ASP programs are running on the server, it is only related to the environment of your server. No matter what browser the client is, there is no difference for your ASP program, therefore, it is a good choice to use the back-end ASP program for Data Validity verification. When ASP is used for backend

Objects | data | regular Validate the legality of the data in a "Regular Expression object" in ASP When we make a website, especially a variety of e-commerce sites, first of all, we will allow users to fill out a number of forms to obtain registered users of various information, because users can enter a wide range of information, and some do not meet the require

very likely that JavaScript on the client will not accurately verify the various types of user input data, while ASP programs are running on the server, it is only related to the environment of your server. No matter what browser the client is, there is no difference for your ASP program, therefore, it is a good choice to use the back-end ASP program for Data Validity verification. When ASP is used for ba

, the "properties" window provides you with a tool to create a data binding expression. You can also create your own binding expressions and enter them in the HTML view of the web forms designer.Advantages of using a data binding expression Using a data binding

expression" object provided by VBScritp5.0, as long as your server has ie5.x installed, it will bring VBScript5.0. In fact, the "regular expression" is originally a patent under Unix, especially in the Perl language is the most widely used, it is because of "regular expression" powerful features, so that Microsoft slowly transfer the regular

browsers are not necessarily compatible with Microsoft and Netscape, So it is likely that the client's JavaScript will not accurately verify the user input of various data, and the ASP program is running on the server side, but with your server environment, regardless of what the client browser, for your ASP program is no difference, Therefore, it is a good choice to use the backend ASP program to validate the da