Again, there is no automatic way to do this in Base, unlike Access. The only way to do it is to use a subtract join which we covered in the relationships section. As a reminder, let’s set a new one … Take lesson
There is no easy way to do this in LibreOffice Base. We have to use a roundabout solution. First create a duplicated record by adding a record to the Mechanics table, repeating the first name and grade under a different … Take lesson
A crosstab query involves creating a cross join between two tables, where every record of the left table is combined with every record in the right-hand table. Create a new query in design mode and add the tables Orders and … Take lesson
Imagine we want to copy all of the records with a job number of 10 and above from the ‘Jobs’ table into a new table called ‘Recent Jobs’ Of course, we could do this manually by creating a new table … Take lesson
Imagine we wanted to delete the last 3 jobs from the ‘Jobs’ table as the customers cancelled last minute. We could go through and manually delete them, but imagine if we had hundreds of records to delete (maybe we archived … Take lesson
Apply, remove bound control properties like: limit to list, distinct values. Limit to list and distinct values options are only available in MS Access, not Libreoffice Base. Limit to list changes the properties of a combo box to only allow … Take lesson
Appending records means taking them from one table and putting them into another. In MS Access there is a built-in function to do this, but in Base you will have to use an SQL query. Imagine we want to create … Take lesson
To add records to a table in Base you must use an SQL statement, using the command INSERT. Go to Tools->SQL and in the SQL Command box type: INSERT INTO “Jobs” VALUES (’18’, ‘105’, ‘Repair handbrake’, ’17th JAN 17′, ‘RS1’) … Take lesson
Open the Order Details table. If we notice that there is an error with certain data, sometimes it is easy to change it using the ‘Update’ command. Imagine we notice that Part Ref ‘D1’ (spark plugs) can only be bought … Take lesson
Many of the ‘action’ queries that we are going to look at in this section differ in the way that they are executed between MS Access and LibreOffice Base. Queries that directly update, add to, append or delete records in … Take lesson
