I tried reading the Progress knowledge base for FIND CURRENT statement. It didn’t help much. Can anyone tell me what does FIND CURRENT statement do and why/in which locking scenarios we use it? Also, it would be really helpful if it can be explained with the simple example. Note: Any example using the Sports database, which is not shown in the knowledge base. I implemented the below code, but it doesn’t seems to reach the CURRENT-CHANGED statement when I compile the procedure ( I’m using the DB I’ve created with the logical name “Personal”).
Thank you.
FIND FIRST personal WHERE personal firstNAME = "Ganesh" EXCLUSIVE-LOCK.
UPDATE personal.
FIND CURRENT personal EXCLUSIVE-LOCK.
UPDATE personal
IF CURRENT-CHANGED personal THEN DO:
MESSAGE "Record is changed"
VIEW-AS ALERT-BOX INFORMATION BUTTONS OK
DISPLAY personal.
END
Your code example is not compilable as it stands. You seem to be confusing database name "personal" with a table name and then specifying a field name with a space between the table name and the field name. Or something like that.
Normally you do not have any need to specify the database name in your code. One case when you might wish to do that is if you are connected to multiple databases with identically named tables - but that isn't your situation. If you were to be doing that the correct syntax to use is:
dbname.tablename.fieldname
One situation when you might use FIND CURRENT is when you think that other users might be changing the data while you are reviewing it in a NO-LOCK status.
Another case might be to use FIND CURRENT if you want to upgrade the lock without having to specify the WHERE clause all over again (the example below is very simple so hardly worth saving the effort but you could have something a lot more complex).
For instance:
find customer no-lock where customer.custNum = 1.
display customer.custName.
pause.
/* if you try to update the name at this point you will fail because the record is not locked */
find current customer exclusive-lock. /* upgrade from no-lock to an exclusive-lock */
if current-changed customer = false then
update customer.custName.
else
do:
message "someone else changed things while you were reviewing the record :(".
end.
This is also explained here:
https://docs.progress.com/bundle/openedge-abl-reference-117/page/CURRENT-CHANGED-function.html
In the sample above, I don't see a lot of value in FIND CURRENT. You're locking the record exclusively in the first FIND. And since you have the record locked, no other user can change the record.
Generally FIND CURRENT has two purposes: Changing the lock status, e.g. from NO-LOCK or SHARE-LOCK to EXCLUSIVE-LOCK in case you don't know straight away that you need the lock.
And for a record that was accessed with FIND NO-LOCK initially, FIND CURRENT allows to refresh the record in case another user has changed it.
Related
Our former security admin team off-boarded terminated users by deleting their user profiles from the system. We have changed that policy but there is potential for duplicates. I am attempting to find user ids on the various module tables that are not on the OPRDEFN but having no luck.
I would like to query the major tables to return a list of all user ids to compare to the current OPRDEFN. From there, I can either have them added or create a reference list the admins to use prior to creating a new user id.
Does anyone have any tips or already written SQL? I am not the best SQL writer, I've tried several different things but nothings works.
Any help would be greatly appreciated.
Here you have a list of tables using the OPRID field. I have already formatted it in a way you can just run the result to get the Oprids.
Also, consider other columns like OPERATOR
SELECT 'SELECT DISTINCT OPRID FROM PS_'||RECNAME||';' FROM PSRECDEFN WHERE RECTYPE=0
AND RECNAME IN
(SELECT RECNAME FROM PSRECFIELD WHERE FIELDNAME IN ('OPRID','OPERATOR'))
AND RECNAME NOT LIKE '%AET'
AND RECNAME NOT LIKE '%TMP'
Also, you may just look at PSACCESSLOG, it will show you when someone access, so you may save time by querying it only
I am asked to automate the tracking of changes in the structure of the database: Any modification, addition or removal of tables, fields, indexes, etc.
I have searched the audit but only found that it can track changes in the "Database schema", which is something else.
Do you know if it is possible to do that?
We use 11.6.3.
One wonders how those magical changes in the schema (I think you clarified that it was actually schema changes you wanted to automate) occur. Optionally it could be up to those making the changes to also keep track of them. Usually (hopefully) the database is updated using "delta df-files". Those df-files if kept are a changelog of the database.
Another option is to daily/hourly/weekly dump the data definitions:
CREATE ALIAS DICTDB FOR DATABASE sports.
DISPLAY LDBNAME("DICTDB").
RUN prodict/dump_df.p ("ALL",
"c:/temp/sports.df",
"").
DELETE ALIAS DICTDB. /* Optional */
Taken from this entry in the knowledge base: https://community.progress.com/s/article/15884
Then you can diff that df-file using your favorite tool or keep as it is.
If you actually mean structure (that's more how the data is stored in different files on disc) you can use the prostrct command to save a new st-file to disc:
prostrct list sports
This will save a file called sports.st. Handle it as above and you will have a changelog of the database structure.
I am working on a forensics course, with which I have been looking into an attack on a blog server. I have found a number of deleted Wordpress files, and I have managed to figure out which ones contained blog posts.
The one file I cannot figure out contains information beginning with the following:
wordpress#UPDATE wp_options SET option_value = 'O:9:\"MagpieRSS\":19:{s:6:\"parser\";i:0;s:12:\"current_item\";a:0:{}s:5:\"items\";a:10:{i:0;a:9:{s:5:\"title\";s:37:\"India Vs Pakistan: Now Cyber Terror? \";s:6:\"author\";s:8:\"chinchak\";s:4:\"link\";s:59:\"http://feeds09.technorati.com/~r/trarticles/~3/sxlCqi2M9aE/\";s:4:\"guid\";s:74:\"http://technorati.com/politics/article/india-vs-pakistan-now-cyber-terror/\";s:11:\"description\";s:182:\"The India-Pakistan relations could very well be termed the greatest mystery ever of mankind.\";s:7:\"pubdate\";s:31:\"Tue, 21 Aug 2012 00:03:41 +0000\";s:8:\"category\";s:51:\"PoliticsAssam ViolenceCyber TerrorIndia Vs Pakistan\";s:10:\"feedburner\";a:1:{s:8:\"origlink\";s:74:\"http://technorati.com/politics/article/india-vs-pakistan-now-cyber-terror/\";}
It continues in this way for a while, but I haven't had too much luck trying to use Google to tell me what the "wp_options" means. It looks like someone was trying to spam the blog with commments but I can't be sure without a source which can confirm my view is correct. Can anybody help please?
The wp_option table stores key-value information in the columns option_name and option_value. When storing arrays they get serialized, to decode them you can use PHP's unserialize function. It looks like you're dealing with an SQL injection that tries to mess with Wordpress' user options. The purpose is not obvious, because they are rarely displayed. Just used internally. If there's a where clause somewhere in that SQL statement that tells you which option name it's trying to edit you could perhaps match it using this list:
http://codex.wordpress.org/Option_Reference
We created special form to creating purchase prices for vendors.
New form has almost the same fields as original (so we used PriceDiscTable), but the record/datasoruce was set as temporary table. After user filled mandatory fields will click button, (extra logic behind) and record will inster to database (real priceDiscTable).
The idea was to grand access to trade prices for users that not necessarily has access to purchase prices. In theory everything was ok, but when user with no access to PriceDiscTable open new form, error was shown "Not enougt right to use table 'Price agreements'".
We try set the AllowCheck to false in formDatasource but this only allow us to open the form, but user still cannot add or modify records.
Is there any way to force system to allow user to write data in the temporary table?
Disabling security key or grand access to real table is not an option.
Duplicate table and create with same fields is nuisance (if we use same table we can use data() method to assign fields)
I think that creating a new temporary table with [almost] the same fields would be the best solution.
If the only reason you oppose to this approach is that you wouldn't be able to use data() to copy data from one table to another you can use buf2BufByName() as described here: http://mybhat.blogspot.co.uk/2012/07/dynamics-ax-buf2buf-and-buf2bufbyname.html
You can use RunAs to impersonate another user...perhaps a system user. I don't entirely follow what you are trying to do, but it sounds like this solution would work for you if you know exactly what your custom code is doing and is capable of.
See Classes\AifOutboundProcessingService\runAsWrapper to see an example.
You will not be able to display the PriceDiscTable without giving the user at least "view" access or editing Classes\FormRun to somehow bypass the security key, which is kernel level so it's also not possible.
I agree with 10p where you should create a temp table and then create a custom method handler combined with buf2bufbyname() or buf2buf().
Another option you can screw around with, if you REALLY want to use .data() is using a Common as the datasource. You could add the fields you want on the grid with the common, then you can pass a common back/forth. This has a good amount of form setup to get this working, but it could produce what you want eventually I think.
static void Job8(Args _args)
{
Common common;
salesTable salesTable;
;
common = new DictTable(366).makeRecord();
select firstonly common where common.RecId == 5637145357;
salesTable.data(common);
info(strfmt("%1 - %2", salesTable.SalesId, salesTable.SalesName));
}
Does anyone have some code or a link as to how to create the user login name as a parameter during a sql query in ASP.NET?
Basically I want to use the default membership structure with a new field ClubID, then I want to add a new table called aspnet_Clubs which contains things such as Club Name, stadium name, Balance etc etc... and then use a relationship between ClubID and a field in the aspnet_Clubs table to tie things together.
Then when each user logs in they should see the clubs information specific to their loginID.
I know the syntax to use for the query, its getting the loginname parameter and being able to use/assign it as part of the search that is causing me the problem.
In general it is not recommended to break the default schema of the aspnetdb where the Membership data is stored. It can bring you to unexpected consequences in the future.
I had a similar question a couple of days ago, please check it here, may be you will be able to adopt something from the discussion to your situation.