instrio.blogg.se - How to merge cells in a table on paper dropbox

#How to merge cells in a table on paper dropbox how to#
#How to merge cells in a table on paper dropbox code#

When you look closely at the two tables that we want to join, you notice that not all Person ID’s correspond between the tables.

#How to merge cells in a table on paper dropbox code#

Those who read the first post know that I am not a big fan of making assumptions in the load script, it makes the code harder to read and maintain. If no table name is specified, QlikView assumes that the data should be joined with the last loaded table. Optionally, the name of the table to which the data should be joined can be specified between parentheses. This means that QlikView compares all the common fields between the two tables and joins the rows from both tables when the values in the shared columns match. The join is a natural join made over all the common fields. When the JOIN prefix is put in front of a LOAD statement, it tells QlikView not to load the data into a new table, but instead join the data to a previously loaded table.

To merge the columns from two (or more) tables we can use the JOIN prefix.

Logically, it makes more sense for employee-related data to be grouped together into a single employee dimension table.

It makes for a simpler, less-cluttered data model.

Technically, there is nothing wrong with using this approach but I prefer to merge the tables for two reasons: The resulting data model would look like the picture on the right. The first option we could consider is just loading the table as-is. Now that we have a single, merged Employee table, the manager of the Scranton branch comes up with an additional requirement wouldn’t it be a cool idea if we could link corporate’s HR data with the merged employee table so we also have everyone’s job description and pay scale available in our reports and dashboards? While I personally reserve the “cool idea” qualification for ideas that are really, well, cool (say, shark cage diving or designing your own heart valve implant) for the sake of this post lets assume that this is a cool idea and that we really want to implement it. The resulting table is shown on the right. We merged the two tables by using the CONCATENATE prefix, demonstrating the difference between implicit and explicit concatenation along the way. In the previous post we discussed the example of a paper company that wanted to merge the employee list of their Sales Department of one of their branches ( the Stamford branch) into the employee list of another branch office ( the Scranton branch).

#How to merge cells in a table on paper dropbox how to#

In the previous post I wrote about appending rows to tables by using the CONCATENATE prefix, this time I will show you how to add columns to a previously loaded table by using the JOIN prefix. This is the second post in a series on merging tables in QlikView.