What we call the keys next to the db0 in redis
I would like to know the names i asked in the image given below
The Orange highlight is a Redis (logical) database.
The Green highlight is a Redis key of the type Hash.
The Blue highlight is a field and its respective value inside that Hash.
Related
I'm trying to inspect the data of a table via transaction code SE16(n) on a development system. I'd like to see all of the table's records. In other words, I don't want there to be any selection criteria. But the table has a numeric key that I have to specify. Is there a wildcard-like value that I can enter so any record matches the key?
Thanks in advance,
Joshua
In transaction codes SE16 and SE16N, by default all the lines of the selected table should be displayed up to the maximum defined in the selection screen (leave the field blank to display all).
If you click the button "Number of entries", you can see how many lines there are in the table (NB: it counts only the lines in the current client if the table is client-dependent).
Sometimes the selection may not work well if the selected table field has a "kind of defective" Conversion Exit (at Domain level in the ABAP Dictionary), but that happens rarely.
Labview,
i would like to add button for each row in table and this button depends on number of rows of data in the table,Button will add programatically in each row.
Reference Image: Cross button
When do you say "Table", Are you referring to "Multi-Column ListBox" or "Table Control" or Individual 1D arrays that are arranged like a Table? There are many ways you can do this!
An array of Clusters as Dave_St suggested.
Using a Table control & Boolean Array.
Using a Table control & Array of Picture Ring.
Using individual 1D Arrays Arranged like a Table.
I'd recommend the first method. Since it makes data handling pretty easy!
But If you're going to go with any other method! You can make your boolean array background as white/transparent and place on top of a Table Column!
Example:
In the above image, I used a Table Control and an array of Picture ring. But you need to synchronize both your array's scrolling positions! Only then the user shall be able to see the correct status for the row.
It seems like you're trying to imitate a webpage form! If you want to dynamically add controls/indicators to your VI check out VI Scripting! But I'm not sure whether VI Scripting will satisfy your requirement.
There are a couple of other ways to get this behavior. However, the array of clusters is probably the easiest. Two other ways to do it are:
Use the glyph (symbol) functionality of a table or multicolumn listbox
Create a data grid or use the DataGrid QControl.
P.S. You currently cannot programmatically add controls/indicators during run time. So VI Scripting won't help you there.
I am a windows Developer recently exploring elasticsearch. I was wondering if there is a way to bind a field to another one such that the values of the binding field are entered into the binded field.
For Example: In windows development: I can bind the value of a
textblock to a string property and when I populate the string
property, the textblock text automatically gets updated. Similar in
MS Excel, I can put the value of one cell into another by simply
binding it.
What Exactly Am I doing
I am using elasticsearch to hold location data. now I have a latitude field and a longitude field. I have another field geo_location of type geo_point.
What I want to achieve
I want that each time i push some data into the index that has a latitude and longitude(it'll always have latitude and longitude), the geo_location field gets populated automatically from the newly pushed data's latitude and longitude.
Is that even possible? If yes then can anyone tell me how? or tell me what is this process called so that I can look up a documentation on it.
The logstash.config file has the below code for output {} to push data to elasticsearch index.
elasticsearch
{
index => "mytestproject_locationbase"
document_type => "uap"
hosts => "localhost:9200"
}
How do I tweak the output code to not delete the existing index and then pre-process latitude and longitude fields to put into a geo_point type field
This is possible using a pipeline. You can create a pipeline that moves a field either around or copies it (or removes it), thus you can create the required JSON structure to store a geo point.
A real beginner here,
I am looking to have a table of static data with about 300 cells in it. (There will be 12 distinct tables in all)
The user would input two values, the first would indicate the row, and the second would point to the cell within that row, and I want my app to be able to read back the column heading for that row.
What is the best way to have this data stored in my app? Currently the data is in a spreadsheet.
The data looks like:
Index 0,Index 1,Index 2,Index 3 ,Index 4,Index 5,Index 6,Index 7,Index 8,Index 9
10,156,326,614,1261,1890,3639,5800,10253,20914
20,107,224,422,867,1299,2501,3986,7047,14374 ...etc.
Where the number at index zero is the name of the row (entered by user) and the numbers after that are the values also entered by the user.
I want the code to take the two numbers (row and value) and then return a string based on the column heading (shown here as index 0 - 9)
the last tricky bit is if the user enters a value that is in between the values give I want it to use the next highest value from the data. E.g. if in row "10" the user inputs 700 I want the code to return the index heading for 1261.
Does that make sense?
Possibilities are endless...
In code as a static 2D array
XML
JSON
Tab Delimited Text File
Comma Delimited Text File
PList
etc.
All depends on your needs and wants.
On the CONs for each:
Static 2D array may consume some memory every time the app runs...
A file will involve some disk IO or processing requirements to read the values out of the file stored in the Bundle.
On the PROs for each:
Data from the static array would be FAST...
Updating data in a file could be done on-the-fly over the web.
You could write a simple routine to dump your spreadsheet into any of the above listed options, so I don't think that's a real serious consideration. It's mostly about what works best for you in terms of size of data and updatability/maintainability.
I've been tasked with learning Lotus Domino Designer - not sure what I did in a previous life, but it must have been pretty bad... - and was wondering how to do a lookup on a database to get some values for selections. As this information could potentially be used in a lot of the applications, I'd prefer it only to be in the one place.
I gather I can use #DBColumn, but what happens if an entry in that lookup changes? If the unique value of the lookup is the text, then the relationship would be broken, wouldn't it? Is there any way of mimicing the idea of relational lookups?
I'm assuming I'm looking at Lotus development from the wrong angle, as this seems to be a real limitation of look ups.
I haven't found any decent learning material on the interwebs, so would appreciate any help.
Ta
You would want to store a unique ID along with the textual value in the source database (not unlike what you would do in an RDBMS). Then, only store that ID in any referencing documents, and use a computed-for-display field to lookup the display value. (There is a performance consideration here - and you could "de-normalize" the data and store the ID and text value in the referencing documents, and do some asynchronous work to keep the values in sync - eg: using a scheduled agent that runs every night or every week).
If DB1 has the key values and DB2 has the documents which will reference these values, then in the form in DB2, you would still do a #DbColumn to lookup your value list. In the lookup view in DB1, concat the text value and ID with a pipe separator (textField + "|" + ID) in the first column. That will tell Notes to store only the ID value (what follows the pipe is the "alias" and is what will be stored).
Note: I would avoid using #DocumentUniqueID as the unique ID for these values, as the Document Unique ID will change if the documents are copied and pasted, or the entire database is copied, etc. You can use the #unique formula function in a computed-when-composed field to generate something close to a unique ID (almost like an identity column in sql).
If you need relational properties, look for non-Notes solutions. It is possible to get some relational behavior using document UNIDs and update agents, but it will be harder than with a proper relational backend.
Your specific problem with referencing to a piece of text that might change can to some extent be resolved by using aliases in the choice fields. If a dialog list contains values on the form...
Foo|id1
Bar|id2
...the form will display Foo but the back-end document will store the value id1 - (and this is what you will be able to show in standard views - although xpages could solve that). Using the #DocumentUniqueID for alias can be a good idea under some circumstances.
It depends on where your using the data. The #DBLookup or #DBColumn will work in Lotus Notes fields if the fields are set to be computed for display. That way they always get the most up to date information when you open the form etc.
If you make it so the data is saved on to the document then you will have to write some update code when you need to refresh the values.
The Lotus Notes help files for designer are pretty good, have a look at that.
SM
You could use a key or alias to store the relationship to your lookup value so if the value itself changes, the connection remains because the alias is intact. For example, if your lookup values were being stored as a collection of documents, I'd have the #DBColumn retrieve Document UNID|lookup value pairs. When in display mode, you could then retrive the value using #GetDocField. If the lookup values are in a different database, then you'd have to retrieve them for display using #DBLookup and construct a view that is keyed off of the UNID or whatever key you decide to use.The only drawback to this technique is that you wouldn't be able to display the field value in views as the actual value isn't stored in the document, just a reference to it. Using XPages, though, you COULD map the relationship into a dynamic datatable just like you would in a truly relational system.
It's tricky, but using LEI, you could also use Notes to front-end a relational backend system, also giving you the dynamic relationship you desire in your lookups.
Hope this helps!
The content of the lookup can change freely. A problem only arises (as it would on any other platform in the same circumstances) if the lookup key changes. You need to use a key that won't change. Human-readable text is an advantage, but if you want to be able to change your key description from, say, "Divisions" to "Business Units" and still have lookups work, you need to use an alias of some kind, which will presumably be mapped to your text description and only used internally. #Unique is pretty good for this, and gives a shortish key, if that is important to you. #DocumentUniqueID is most reliable, but as Ed pointed out, will change (must change - it's a new document) if you copy/paste or make a non-replica copy. This is easy to get around, though. Create a Computed-when-composed field (called, say, "LookupRef") on the form you are using for your reference document with the formula "#DocumentUniqueID". That will capture the ID at the time of creation, and it will not change on copy/paste etc. Use that as your key.