If you copy from a tabular source by using a table name instead of a query, the name pattern is [table name]. In this sample, I create a data adapter object and selects all records of Customers table. For Java configuration, you can use the queryLookupStrategy attribute of the Enable${store}Repositories annotation. For example, you want to create a custom attribute MinAgeAttribute(), in which user is forced to enter their age 18 or more than 18. Let sourced names be an initially empty ordered list of tuples consisting Values in a data object may have their own unique IDs, data types, and attributes. This is example of attr() method. About Sample Example 6 . To tell Python that you want to define a data attribute of the object, you use a variable named self with a dot after it. To select all anchors with the data attribute data-customerID==22, you should include the a to limit the scope of the search to only that element type. So: stand near that road, and count the cars that pass by in 10 minutes. To get the contents of the attribute data-id (like in link) you have to use $(this).attr("data-id") // will return the string "123" or .data() (if you use newer jQuery >= 1.4.3) $(this).data("id") // will return the number 123 and the part after data-must be lowercase, e.g. When you classify or categorize something, you create Qualitative or attribute data. To set a data attribute on an element in React, set the attribute directly on the element, e.g. In this way, data objects vary across database structures and different programming languages. This method is NOT generally recommended because scope is usually sufficient for most tables, even if the table is complex with multiple levels of headers..