I need help with functions in Base

users
#1

Hello I'm starting with queries and functions. Right now I know how to tackle
queries, but I don't know very well how may I use functions on queries. I
would like to master all functions, so I need examples with functions. The
problem is I don't know where may I find help with this? *I'd like to see
samples about these functions*:

Average, Count, Maximum, Minimum, Sum, Every, Any, Some, STDDEV_POP,
STDDEV_SAMP, VAR_SAMP, VAR_POP, Collect, Fusion, Intersection, Group

Sadly I don't have seen any documentation from LibreOffice explaining every
function with a sample. Please, could someone give me some examples for
these functions? I'd like to see them working and what everyone do.
Cheers

#2

Hello I'm starting with queries and functions. Right now I know how to tackle
queries, but I don't know very well how may I use functions on queries. I
would like to master all functions, so I need examples with functions. The
problem is I don't know where may I find help with this? *I'd like to see
samples about these functions*:

Average, Count, Maximum, Minimum, Sum, Every, Any, Some, STDDEV_POP,
STDDEV_SAMP, VAR_SAMP, VAR_POP, Collect, Fusion, Intersection, Group

Sadly I don't have seen any documentation from LibreOffice explaining every
function with a sample. Please, could someone give me some examples for
these functions? I'd like to see them working and what everyone do.
Cheers

The availlable functions depend on the type database you are connected
to. The bare minimum of functions in the file based databsaes
(spreadsheet, text, dBase) is documented here:

http://www.openoffice.org/dba/specifications/file_based_functions.html

File based databases support only one aggregation COUNT(*)

The built-in HSQL 1.8 (which should better not be used embedded into the
Base document) is documented here:

http://www.hsqldb.org/doc/1.8/guide/ch09.html

Any resource on SQL can teach you how to use all these functions
properly, particularly the aggregation funcions together with GROUP.

[Tutorial] Calculations in databases (quick primer)

#3

Hi Andreas, thanks for the amazing info you gave me.
Well, I was not meaning to SQL, because what I want to do right now are
queries using the gird, the queries window.
I wanted some examples of this, with already created queries.
Exactly the last link you gave me...
https://forum.openoffice.org/en/forum/viewtopic.php?f=83&t=26328
Is very useful, because it has queries, created with several functions.
What I am looking for is exactly, that.
However, I need a bit more:
I would need help to understand these functions:
*STDDEV_POP, STDDEV_SAMP, VAR_SAMP, VAR_POP, Collect, Fusion, Intersection*
Those functions are like a mistery. I don't know where may I found
information about what every one of them do exactly.
Could you give me an .odb file with some queries, showing examples for these
functions?
Cheers

#4

Hi Andreas, thanks for the amazing info you gave me.
Well, I was not meaning to SQL, because what I want to do right now are
queries using the gird, the queries window.

"The grid" (do you mean the "design view"?) creates an SQL statement as
you can see when you toggle between the design view and SQL view. There
is a toggle option in the menu and on the toolbar. The query designer
does a very bad job. It is almost useless because it can only produce
baby-SQL. Within a weekend you learn much more SQL than that tool will
ever be able to handle. I can demonstrate lots of working queries that
are messed up completely once you load them into the design view.

I wanted some examples of this, with already created queries.
Exactly the last link you gave me...
https://forum.openoffice.org/en/forum/viewtopic.php?f=83&t=26328

On the linked forum you find dozends of example files with all kinds of
calculations.

However, I need a bit more:
I would need help to understand these functions:
*STDDEV_POP, STDDEV_SAMP, VAR_SAMP, VAR_POP, Collect, Fusion, Intersection*

STDEV is the standard deviation, VAR stands for VARIATION, POP for a
full population, STDDEV for a sample, I don't know about Collect, Fusion
and Intersection. You might find them in SQL tutorials.