I'm working on a large select statement, it was working fine, but with some dates
it gives a strange result, I started reducing it to track the mistake in vain!
until I wrote this code
SELECT DISTINCT
CURDATE() AS `Rdat`,
`p`.`pspsalm1` AS `pspsalm1`,
`p`.`pspsalm2` AS `pspsalm2`,
`p`.`pspsalm3` AS `pspsalm3`,
p.`PSDescription` AS `PSDescription`
FROM
(`dailyreadings` `d`, `psalms` `p`, `weeks` `w` ,`feasts` `f`)
WHERE 1=2
it gives result as well..!
I think this condition ( 1=2) should give no result
any clarification?
It shouldn't give any result
Try:
refreshing your browser
clear broser cache and try again
Thanks to you guys
It is a browser issue,
the browser kept the previous criteria and query data using it, even when I changed the condition in the sql statement.
Thanks to you all
Related
so I'm currently working on a MySQL trigger. I'm trying to assign values to two variables when a new record is inserted. Below are the queries:
SET mssgDocNo = (SELECT Document_ID FROM CORE_MSSG WHERE Message_ID = new.MSSG_ID);
SET mssgRegime = (SELECT CONCAT (Regime_Type, Regime_Code) FROM T_DOC WHERE CD_Message_ID = new.MSSG_ID);;
For some reason, the second SQL query is not picking up the 'new.MSSG_ID' condition while the first query in same trigger recognizes it. I really can't figure out what seems to be the problem.
When I replace the 'new.MSSG_ID' with a hard-coded value from the database in the second query it seems to work. I doubt the 'new.MSSG_ID' is the problem because it works perfectly fine in the first query.
I've tried pretty much anything I could think of. Would appreciate the help.
I would write these more simply as:
SELECT mssgDocNo := Document_ID
FROM CORE_MSSG
WHERE Message_ID = new.MSSG_ID;
SELECT mssgRegime := CONCAT(Regime_Type, Regime_Code)
FROM T_DOC
WHERE CD_Message_ID = new.MSSG_ID;
The SET is not necessary.
I did make one other change that might make it work. I removed the space after CONCAT. Some versions of MySQL have trouble parsing spaces after function calls.
A very simple question:
I wanted to select all the rows that their keys have a certain prefix in Hive, but somehow it's not working.
The queries I've tried:
select * from solr_json_history where dt='20170814' and hour='2147' and substr(`_root_`,1,9)='P10004232' limit 100;
SELECT * FROM solr_json_history where dt='20170814' and hour='2147' and `_root_` like 'P19746284%' limit 100;
My Hue editor just hangs there without returning anything.
I've checked this time range there's data in my table by this query:
select * from solr_json_history where dt='20170814' and hour='2147' limit 15;
It's returning 15 records as expected.
Any help please?
Thanks a lot!
Per #musafir-safwan's request, I've added it as an answer here.
UPDATE:
I'm not able to provide sample data. But my problem got resolved.
Thanks for the commentator's attention.
My table does have data, no need to worry about that. Thanks for checking though.
The problem was due to a bad Hue UI design, when I issued the above two queries, it takes too long (longer than the set timeout on the UI) to get a response back, so simply, the UI doesn't reply anything, or gives a timeout reminder. It just hangs there.
Also, those two queries essentially making two RPC calls, so they timed out.
Then I changed to use below query:
select `_root_`,json, count(*) from solr_json_history where dt='20170814' and hour='2147' and substr(`_root_`,1,9)='P19746284' group by `_root_`,json;
the difference is that I added a count(*) which turns this query into a map-reduce job thing, thus no timeout limit, and then it returns the result that I wanted.
YMMV.
Thanks.
I have a query which retrieves 3 columns from table which works fine in phpmyadmin
SELECT cab_id,
SUM(IF(rating=1,1,0)) as up,
SUM(IF(rating=0,1,0)) as down
FROM rating WHERE cab_id=101
table->'rating'
Can anyone help me to find how I can get this query worked using redbeanphp ?
I tried ,
R::getRow(),R::getAll(),R::$adapter->getAssoc()
none is working!!!
To check the correctness of code I tried,
SELECT * FROM rating group by cab_id having cab_id=101
and found working.But I need the first query statement to work! Any help ,please?
I got the answer finally, This one works.
$val = R::getAll($query);
I am having issues with my MySQL syntax. I would like to run a select query where either one of two options are true. However the following code does not work.
SELECT * FROM games WHERE genre="indie" OR title="indie"
I have been fooling around and look at other threads and have found out how to use OR to check the same column for multiple entries but not a way to check different columns for the same entries. When I do:
SELECT * FROM games WHERE genre="indie"
The query works fine. Any help would be greatly appreciated.
The only way I see this really would't work, is if you've mistyped the name of the column 'title' (if the second query you wrote works)
The assumptions about the case sensitivity are wrong, since the second query returns something, the first should return at least the same rows as the second one
In MySQL " " works just as ' ', so this assuption was wrong too.
If you post more information, it would be easier to help you
Maybe you ignoring the upper/lower case? Also use like
You can use this:
SELECT * FROM games WHERE (LOWER(genre) like 'indie') OR (LOWER(title) like 'indie')
select count(*) FROM antecedente_delito WHERE rut_polichile = NEW.rut_polichile
this statement is giving de value 0, when it should give me 18 :/ ive been trying a lot to find any bug in it.
Here's the working solution that I mocked up using/changing your code in SqlFiddle. http://sqlfiddle.com/#!2/ac2e9/1
To trouble shoot this, I would view your actual values and verify that NEW. is returning what you think it should. Sometimes it may be doing some trims or removal of special characters, especially the _ and % signs are likely to stripped in subprocedures.
I would start with the query:
select top 50 rut_polichile, NEW.rut_plichile FROM antecedente_delito
If the issue is not obvious from that add in a varbinary check:
select top 50 cast( rut_polichile as varbinary), cast(NEW.rut_plichile as varbinary) from antecedente_delito
If the table only has 18 records, then you should be good to go with the above troubleshooting, but if there is more data, I would suggest limiting your results from the above by the rowid or other identifier in a where statement.
It's not the answer, but I hope it helps you find the answer.
The SELECT privilege for the subject table if references to table columns occur via OLD.col_name or NEW.col_name in the trigger definition.
but in your trigger i can't see any trigger definition. so try without NEW.
for more info: http://www.sqlinfo.net/mysqldocs/v51/triggers.html or
http://bugs.mysql.com/bug.php?id=31068