Pgadmin 4 hide null how to#
Pgadmin 4 hide null update#

In other database systems, a generated column with a type ‘VIRTUAL’ is available, which acts more like a view where the result is calculated on the fly when the data is retrieved. In PostgreSQL 12, only the ‘STORED’ type of generated column is available. Since generated columns are updated automatically when the source data itself is updated, adding a generated column will add an assumed guarantee that the data in the generated column is always correct.In heavy read environments, this may be preferable, as long as the extra data storage used is acceptable. Since the processing of the data is done at the time of INSERT or UPDATE, the data is generated once and the SELECT statements only need to retrieve the data. Reducing processing time on extremely frequent SELECT statements that would process the data on the fly.

Pgadmin 4 hide null update#

The ability to add a column to a table containing computed data without need of updating application code to generate the data to then include it within INSERT and UPDATE operations.These expressions could be simple mathematical operations from other columns, or a more advanced immutable function.Some benefits of implementing a generated column into a database design include: In recent versions of PostgreSQL, generated columns are a built-in feature allowing the CREATE TABLE or ALTER TABLE statements to add a column in which the content is automatically ‘generated’ as a result of an expression. The content of the generated column is automatically populated and updated whenever the source data, such as any other columns in the row, are changed themselves. The functionality isn’t exactly anything new, but the standardization, ease of use, accessibility, and performance has been improved in this new version.Ī Generated Column is a special column in a table that contains data automatically generated from other data within the row. This is more of a cosmetic change to get a better viewability.PostgreSQL 12 comes with a great new feature, Generated Columns. Hope this helps to achieve a good display of the Webi report to your end-users /Stakeholders. If the value is populated at the source, it will show that respective value else it will be blank. That is ActivityType_null will be your new Activity_type now. =If(( = “#”) ”” )Ĭlick on OK and drag and drop the newly created field on the webi report to replace the original Activity_type field. Replace “activity_type” with your field in the report and put it in the formula section – 2nd red box below. On the left-hand side of the webi report in the available objects section, go to the variables section, right click on the variables folder-> select New -> and create a new variable as “ActivityType_Null” given below where activity_type is the original field name in the webi report. To achieve the result in our situation, create a formula variable in webi with the following option. We have fine tuned the above formula in the below screenshot as the source value is “#”. If any value is blank, display a “0” else show the value as-is. This can be achieved with the below formula. We don’t want to show a # value for blank records and keep it blank instead, if any values is existing, it will show as-is. If its blank (not entered by the employee), it will show as #. In the below report, the activity type is the user entry field from the employee timesheet, to describe the activity type, where it can be blank if the employee has not filled it and populated if it has a value. Hiding the null records at a tuple is different than this. There could be a scenario where the source field is not getting populated or some user fields can be blank on certain conditions.

I have created few Webi reports and found null values showing as “#” (null values which display as # hexa-decimal in the asci world) in the Webi reports. This fix is not to hide the complete row in the webi report, but to hide the # values ( null values) to display if any of the source fields which are blank at the source table. This is a most common scenario where end-users don’t want to see # values for blank records which are coming from the source system. Sometimes it’s really annoying to see “#” values in the Webi report, while you are looking the KPI values of any business scenario.

Pgadmin 4 hide null how to#

How to hide ‘#’ values (Null values) from the Webi report or how to filter any unwanted records from the webi report ?