I really dont know how to phrase my question, probably why google is not giving me results that i need, but am going to try.
I have two tables, required_files table and submitted_files table. I have a page where i want to display to a user all required files for submission and show which files he/she has submitted.
Required files table is as follows:
file_id file_name mandatory
1 Registration Certificate 0
2 KRA Clearance 1
3 3 Months Tax returns 0
4 Business Permit 1
5 Tour Permit 1
6 Country Govt Operating License 0
7 Certificate of good Conduct 0
file_id is unique, mandatory column is binary value to state whether the file is mandatory before registration or not.
submitted files table is a follows
file_id user_id file_required_id original_file_name file_name_on_server submission_date
1 2 2 KRA_Form.docx 0a10f5291e9bcb6a345ac7a8f5705b8a.docx 2016-11-01
2 2 3 Tax_returns.docx 9f04361013df7e25235a03c506f347ed.docx 2016-11-03
3 3 3 Taxes.docx 86aea74cc87fb669510d9d4c488cbcf8.docx 2016-11-04
file_id is unique AI value, user_id col is unique value of the current user logged in, file_required_id column is related to files_required.file_id column
When fetching the values i already have a user_id (in this case, lets use user_id = 2) Now i want to fetch all values of files_required table and check on files submitted table for files that user_id = 2 meaning user has submitted the files.
my sql query is as follows
SELECT files_required.*, submitted_files.* FROM submitted_files
RIGHT JOIN files_required ON files_required.id = submitted_files.file_required_id
WHERE submitted_files.user_id = 2
This gives me two rows only where the user_ids matched but i want the entire files_required table values and show which files the user has submitted. Someone Kindly assist.
In the meantime, i am fetching files_requied table first then looping through the other table using a php script to look for submitted files for the given user. it works but its not what i wanted and is cumbersome and a rookie move.
Try having user_id condition in RIGHT JOIN itself like below query
SELECT files_required.*, submitted_files.*
FROM submitted_files
RIGHT JOIN files_required ON files_required.id = submitted_files.file_required_id
AND submitted_files.user_id = 2
You want this.
SELECT submitted_files.user_id, files_required.*, submitted_files.*
FROM submitted_files
RIGHT JOIN files_required ON files_required.id =
submitted_files.file_required_id
Don't put the where condition on userid as it will filter out the data just for that user. You want all the records and user should also be seen. Just put the user_id in the select statement.
I updated an old site a couple of months ago moving from a Joomla install to a bespoke system. In order to convert the data from the Joomla tables to the new format I wrote various php scripts which stepped through the old records by section, processed them and inserted into the new table. All was fine until I recently discovered I had forgotten to add the die() statement to the top of one of the scripts and somehow a searchbot has been merrily pinging that script over time to add precisely 610 duplicates in one particular section.
So the things I do know about the data is that the row with the lowest ID is the row I want to keep, and the duplication only exists in CATEGORY = 8. To be sure of a duplicate, the row ORIGINAL_ID will match.
Beyond SELECT, INSERT, DELETE, I'm no MySQL expert, so confused as to how to approach this. What would the experts out their suggest?
Edit: Example code
ID CATEGORY TITLE ORIGINAL_ID
1 7 A 1
2 8 A 2
3 8 A 2
4 8 B 3
5 8 C 4
6 8 A 2
In the above example, records 3 & 6 should be stripped, because they are in CATEGORY=8, have duplicate ORIGINAL_ID; but retain the row with the lowest id (row 2)
So, you want to identify records within Category 8, where there is another record with the same Category, Title and Original_id. You also want to check if that other record has a lower ID.
So:
Select *
from MYTABLE T1
where CATGEORY = 8
and EXISTS (
select 1
from MYTABLE T2
where T2.CATEGORY=T1.CATEGORY
and T2.TITLE=T1.TITLE
where T2.ORIGINAL_ID=T1.ORIGINAL_ID
where T2.ID>T1.ID
If you run this and it returns only the records you wish to delete, replace the "select *" with a "delete" and re-run.
I have a grails application with a mysql database as the datasource. The mysql database is created and maintained by a third party. One of the tables 'visitinfo' contains 2 columns consisting of the 'userid' and 'logindatetime'.
userid is of type TEXT and logindatetime is of type 'datetime'.
In order to access the above table 'visitinfo', I have created a domain class 'VisitInfo' and mapped it to the mysql database table by which my grails application can easily store as well as retrieve data from the database.
On one of the pages, I am required to show visitor information for the last 30 days. So basically I am looking out for a solution to get number of visitors per day for the last 30 days. Something like this:
21-Jan-2012 ------ 36
22-Jan-2012 ------ 85
23-Jan-2012 ------ 115
24-Jan-2012 ------ 236
etc.
Also please note, that if a userid 'williamp' has 2 entries on a particular day, it should be counted as 2. So, am not looking out for uniqueness of users.
Any help will be appreciated.
I know nothing at all about grails. The MySQL query to obtain the desired result is as follows:
SELECT DATE_FORMAT(logindatetime,'%d-%m-%Y') dt
, COUNT(*) total
FROM visitinfo
GROUP
BY dt;
You want to use the countBy gorm method.
numLogins=VisitInfo.countByReleaseDateBetween(startOfDay,endOfDay)
This would need to be in a loop that calculates two date objects for each of the last 30 days. startOfDay would need a time value of 00:00:00:00 and endOfDay would need a time value of 23:59:00:00
I suggest following hql query to match your requirement
VisitInfo.executeQuery("select logindatetime, count(*) from VisitInfo group by logindatetime")
I need to capture last data added to a mysql table in blocks to files every 5 mins (cron)
I need to use last index number as the beginning of next query (+1) .. and so on.
Basically I need to capture blocks of unique records to individual text files with no overlap of records.
I.E.
Index_No Forename Surname
1012 bob Smith
1013 Ann Smith
1014 Mike Hope
First run query would get a certain number of events up to 1014.
The next query would run automatically 5 minutes later (cron ?) and start with 1015 upwards.
Etc etc ... every 5 minutes.
I have looked everywhere on www for answer but not yet found one. I am looking specifically for last record from previous query (+1) up to last current entry cycling every 5 minutes.
I think if I was implementing this requirement, I would write a little program that runs the query and spits the output into a file. The program would also use some kind of persistant data store (text file/db/whatever) to keep track of the last record.
You can then just use cron to invoke your program.
HTH
Have a log table with index_No and update it with the last No whenever you query. Something like this
Create table index_log(Index_no int)
Insert into index_log(Index_no)
select 1014
select columns from source_table
where index_no>(select index_no from index_log)
Update index_log
set index_no=(select max(index_no) from source_table
Hey. I have 160 columns that are filled with data when a user fills a report form out and submit it. A few of these sets of columns contain similar data, but there needs to be multiple instance of this data per record set as it may be different per instance in the report.
For example, an employee opens a case by a certain type at one point in the day, then at another point in the day they open another case of a different type. I want to create totals per user based on the values in these columns. There is one column set that I want to target right now, case type. I would like to be able to see all instances of the value "TSTO" in columns CT1, CT2, CT3... through CT20. Then have that sorted by the employee ID number, which is just one column in the table.
Any ideas? I am struggling with this one.
So far I have SELECT CT1, CT2, CT3, CT4, CT5, CT6, CT7, CT8, CT9, CT10, CT11, CT12, CT13, CT14, CT15, CT16, CT17, CT18, CT19, CT20 FROM REPORTS GROUP BY OFFICER
This will display the values of all the case type entries in a record set but I need to count them, I tried to use,
SELECT CT1, CT2, CT3, CT4, CT5, CT6, CT7, CT8, CT9, CT10, CT11, CT12, CT13, CT14, CT15, CT16, CT17, CT18, CT19, CT20 FROM REPORTS COUNT(TSTO) GROUP BY OFFICER
but it just spits an error. I am fairly new to mysql databasing and php, I feel I have a good grasp but query'ing the database and the syntax involved is a tad bit confused and/or overwhelming right now. Just gotta learn the language. I will keep looking and I have found some similar things on here but I don't understand what I am looking at (completely) and I would like to shy away from using code that "works" but I don't understand fully.
Thank you very much :)
Edit -
So this database is an activity report server for the days work for the employees. The person will often open cases during the day. These cases vary in type, and their different types are designated by a four letter convention. So your different case types could be TSTO, DOME, ASBA, etc etc. So the user will fill out their form throughout the day then submit it down to the database. That's all fine :) Now I am trying to build a page which will query the database by user request for statistics of a user's activities. So right now I am trying to generate statistics. Specifically, I want to be able to generate the statistic of, and in human terms, "HOW MANY OCCURENCES OF "USER INPUTTED CASE TYPE" ARE THERE FOR EMPLOYEEIDXXX"
So when a user submits a form they will type in this four letter case type up to 20 times in one form, there is 20 fields for this case type entry, thus there is 20 columns. So these 20 columns for case type will be in one record set, one record set is generated per report. Another column that is generated is the employeeid column, which basically identifies who generated the record set through their form.
So I would like to be able to query all 20 columns of case type, across all record sets, for a defined type of case (TSTO, DOME, ASBA, etc etc) and then group that to corresponding user(s).
So the output would look something like,
316 TSTO's for employeeid108
I hope this helps to clear it up a bit. Again I am fairly fresh to all of this so I am not the best with the vernacular and best practices etc etc...
Thanks so much :)
Edit 2 -
So to further elaborate on what I have going on, I have an HTML form that has 164 fields. Each of these fields ultimately puts a value into a column in a single record set in my DB, each submission. I couldn't post images or more than two URLs so I will try to explain it the best I can without screenshots.
So what happens is this information gets in the DB. Then there is the query'ing. I have a search page which uses an HTML form to select the type of information to be searched for. It then displays a synopsis of each report that matches the query. The user than enters the REPORT ID # for the report they want to view in full into another small form (an input field with a submit button) which brings them to a page with the full report displayed when they click submit.
So right now I am trying to do totals and realizing my DB will be needing some work and tweaking to make it easier to create querys for it for different information needed. I've gleaned some good information so far and will continue to try and provide concise information about my setup as best I can.
Thanks.
Edit 3 -
Maybe you can go to my photobucket and check them out, should let me do one link, there is five screenshots, you can kind of see better what I have happening there.
http://s1082.photobucket.com/albums/j376/hughessa
:)
The query you are looking for would be very long and complicated for your current db schema.
Every table like (some_id, column1, column2, column3, column4... ) where columns store the same type of data can be also represented by a table (some_id, column_number, column_value ) where instead of 1 row with values for 20 columns you have 20 rows.
So your table should rather look like:
officer ct_number ct_value
1 CT1 TSTO
1 CT2 DOME
1 CT3 TSTO
1 CT4 ASBA
(...)
2 CT1 DOME
2 CT2 TSTO
For a table like this if you wanted to find how many occurences of different ct_values are there for officer 1 you would use a simple query:
SELECT officer, ct_value, count(ct_value) AS ct_count
FROM reports WHERE officer=1 GROUP BY ct_value
giving results
officer ct_value ct_count
1 TSTO 2
1 DOME 1
1 ASBA 1
If you wanted to find out how many TSTO's are there for different officers you would use:
SELECT officer, ct_value, count( officer ) as ct_count FROM reports
WHERE ct_value='TSTO' GROUP BY officer
giving results
officer ct_value ct_count
1 TSTO 2
2 TSTO 1
Also any type of query for your old schema can be easily converted to new schema.
However if you need store additional information about every particular report I suggest having two tables:
Submissions
submission_id report_id ct_number ct_value
primary key
auto-increment
------------------------------------------------
1 1 CT1 TSTO
2 1 CT2 DOME
3 1 CT3 TSTO
4 1 CT4 ASBA
5 2 CT1 DOME
6 2 CT2 TSTO
with report_id pointing to a record in another table with as many columns as you need for additional data:
Reports
report_id officer date some_other_data
primary key
auto-increment
--------------------------------------------------------------------
1 1 2011-04-29 11:28:15 Everything went ok
2 2 2011-04-29 14:01:00 There were troubles
Example:
How many TSTO's are there for different officers:
SELECT r.officer, s.ct_value, count( officer ) as ct_count
FROM submissions s JOIN reports r ON s.report_id = r.report_id
WHERE s.ct_value='TSTO'
GROUP BY r.officer