Show specific column from pool_nodes - postgresql

i'm running show pool_nodes and it's work. What if i want to return just the 4th column(status), using only query. It is possible ? Thanks

If you are using pgpool-admin extension, then you can use SQL queries.
SELECT status FROM pcp_node_info()
Here is the documentation reference:
https://www.pgpool.net/docs/latest/en/html/pgpool-adm.html

Related

Talend- get results from tdb2Row component and insert into another table

I'm running a select count query in a tDB2Row component. I need to get the value found and insert it into another table.
I've tried using the propagate query's recordset, but it doesn't make sense to me.
Also what component would i use next?
Thanks in advance!
Please use tDB2Input component for select query and give schema to it and add tLogRow to it to see the result.
tDB2Row is for dml query like update and delete.
Hope this helps...

datagrip Cannot apply changes This table is read only. Cell editor changes cannot be applied

So simply the problem occurs when I want to edit selected rows and then apply it. I'm sure it worked some time ago. Tried redownload postgres driver in preferences(yeah, I use postgres) Anyone faced same issue? Anyone succeed?
PS. Running on 142.4861.1.
I found read only checkbox in connection preferences, it was not set, toggling didn't help, upgrading, reseting also didn't help.
In my case in version 2020.1 of DataGrip (SQL was run from the opened file, on unique table, so that select just worked as expected, but when I was trying to edit - error appeared: unresolved table reference): specifying schemes in request helped. So that SELECT * FROM users; was changed to SELECT * FROM schemadb.users; and that helped. Probably there is a bug. I've tried all the methods mentioned above.
Try synchronize database connection. It helped me in mysql connection.
What actually helped was toggling Auto-commit checkbox in console, after that everything runs flawlessly.
The only thing that actually worked for me, after trying everything above multiple times, was deleting each DB connection and remaking a new one from scratch.
This can be due to default settings, make it sure your your transaction Mode settings are as below
I had the same issue with datagrop 2020.2. I have followed all the method but for me, just delete the connection and create new connection (never trying to duplicate) just manual. It is works!
Set and clear Read-only in Data Source Properties helps me.
What worked for me was removing a field alias - going from this:
SELECT
l.MSKU Item_SKU,
l.Supplier,
l.ASIN,
l.title,
l.Buy_Price
FROM listings l
WHERE l.Buy_Price IS NULL
ORDER BY l.Supplier, l.listingID desc;
to this:
SELECT
l.MSKU,
l.Supplier,
l.ASIN,
l.title,
l.Buy_Price
FROM listings l
WHERE l.Buy_Price IS NULL
ORDER BY l.Supplier, l.listingID desc;
is all it took for me to be able to edit the results of the query
If your query is using field alias (renaming column instead of using actual column name) , then Datagrip set data results as read only.
Solution:
Rewrite query using field names as in the table and rerun query. Then you will be able to edit the rows.
Example
Rewrite this:
select id,interest_recalcualated_on, interest_recalculation_enabled alias from m_loan;
..to this:
select id,interest_recalcualated_on, interest_recalculation_enabled from m_loan;
Nothing worked. I had to update DataGrip from 2017.2 to 2018.3
I had to open the project by navigating to: /home/user/.DataGrip2017.2/config/projects/my_project/
All my scripts for this project as I did not want to import the config from the old version of Datagrip. So I'll probably need to downgrade, get the scripts and upgrade again.
I struck the same issue, not Postgres but MySql, PhpStorm 2019.1 when I had two schema available on the same db connection and my query: select * from users where full_name like '%handy%'; resulted in a result table that couldn't be edited even though the console reported it was querying the stage schema. A more specific query: select * from stage.users where full_name like '%handy%'; using the exact table name led to a results table that could be inline edited.
The only way I was able to get around this issue was to remove the database connection details for the given connection and recreate them from scratch. While this was happening to me on this specific connection, editing was working fine on other connections, which suggests the problem might be related to specific parameters around the connection in question.
For me, when I changed back my Select query to * (wild char to select all the columns), from specific columns, the edit and save started to working again. This is strange! May be worth reporting a bug to intellij. I'm using DataGrip 2020.1 on macOs Catalina 10.15.3
I thought I had the same problem but just realized I needed to submit changes (with a button or command + enter) for them to be applied.
This answer is 4 years late though. Maybe the bug was already fixed haha, but this may help someone else.
The problem for me was the obvious (well obvious after identifying it) - using a MySQL keyword as a field name (yes I know its not a good idea but thats how it is sometimes). So this caused the error
select id,name,value from mytable;
The correct way to write this of course is using backticks so:
select id,name,`value` from mytable;
and this solved it for me.
seems like DataGrip doesn't allow to change data in the ui table if you select specific columns with joins.
so if you select table1.column1, table2.column2 from <table1> inner join <table2> and try to change the value in column1, you will receive This table is read only warning
only if you do select * from <table>, you can edit the cell values
try this
In the IDE settings (Ctrl+Alt+S), go to Database | General.
Select the Open results in new tab checkbox and click OK.
Re-run your query, and you'll be able to edit and commit the changes in the new tabs.

nxlog querylist doesn't work as expected

nxlog.conf
The above link is to a copy of my nxlog.conf. I couldn't find any documentation about how to use multiple blocks within a querylist block, but based on the name I assumed that I would be able to do this. My ELK server is receiving ALL events right now, not any of the filtered ones. I wanted to just use one query block but it is limited to 10 select entries. I can't find any examples of people using more than like 3 select entries. Has anyone had any luck with more advance nxlog.conf's? Any help would be appreciated.
Not sure what the issue with the query xml is. If there is a limitation on the number of select entries, that's coming from the Windows Eventlog API so that cannot be helped.
On the other hand you can use nxlog's native filtering using drop():
Query <QueryList>\
<Query Id="0">\
<Select Path="Security">*</Select>\
</Query>\
</QueryList>
Exec if not ($EventID == 1 or $EventID == 2 or ...) drop();
actually there is no issue with the XML. I was viewing old results in my database from when I was testing nxlog.conf with no queries. My bad!

Using LIKE with parameter expression in query

I was trying to using the like function in iReport 4.0.1. Checked online but none seem to work.
Currently trying to use:
where name LIKE'%$P!{px_name}%'
also tried
'%$P{px_name}%'
but when running the report it comes up saying 'No document'.
But when using where name =$P{px_name} it works perfectly fine.
Where clause will be same as you have used in first step which is :-
where name LIKE '%$P!{px_name}%'
But as you said report says 'The document has no pages' means the query is returning 0 row so just use the same string in LIKE and run the same query in database. Simplest solution is first run the query in database with LIKE operator , if it returns the rows in database then that should also work in iReport.

Multi Select Drop Down Using chosen.jquery.js

when i select index 0 then all Previously selected item should be remove. Is this possible? i have multiple chosen drop down in same page...i have tried so many things but didn't get the proper solutions yet.
I am not sure what you mean. If it is multiple select, it means you can select "multiple" items, otherwise it's a normal select. Also see this and check out if it provides something helpful for you.