The answer to your question - does oracle own Java is - Sun Microsystems created Java. Oracle bought Sun, and thus they became the owners of Java. Java (JVM and JDK) is open source, and you are free to use it. This is under the GPL though, and if they do any changes to the actual JVM or JDK, they will have to release…
Answered Oct 14, 2022 · 1.5K Views Read answer →
A Helper class java is a lesser known code smell where a coder has identified some miscellaneous, commonly used operations and attempted to make them reusable by lumping them together in an unnatural grouping. Successive developers have then come onto the project and not realised that the helper class exists, and have…
Answered Oct 12, 2022 · 1.0K Views Read answer →
Control.java I don't like this name as it's not specific. I'd suggest 'CalculatorApp' instead for the Java calculator gui. You don't need the infinite loop. The application will already continue until the user closes the program.// you can remove all of this: boolean exit = false; while(!exit) { }Calculator.java If…
Answered Oct 11, 2022 · 1.5K Views Read answer →
Regarding the pig latin translator java, I would suggest the following points to make this programme more object-oriented: Try using a collection object provided by Java instead of using arrayString[] word = userInput.split(" "); could be List words = Arrays.asList(userInput.split(" ")); or using external library…
Answered Oct 10, 2022 · 1.2K Views Read answer →
I found out that to have postgresql restart you need to specify the exact name for the PostgreSQL service, which you can find under the list of services, using systemctl (also see this post): systemctl list-units|grep postgresql postgresql-10.service loaded active running PostgreSQL 10 database serverThen you can use…
Answered Oct 6, 2022 · 1.6K Views Read answer →
To find-bak - If you can find it in Windows Explorer, then you should write a RESTORE DATABASE command instead of relying on the clunky GUI to find it for you. Who knows what code is going on in there and why it might not be able to find the file - sorry I only have a workaround and not a solution. Also ensure that…
Answered Oct 6, 2022 · 1.1K Views Read answer →
postgresql initdb setup doesn't create a systemd service file. You must create it from scratch /lib/systemd/system/postgresql-14.service or create config file for default systemd service file. For example /lib/systemd/system/db-test.service, which contain path to desired db # Location of database…
Answered Oct 6, 2022 · 9.5K Views Read answer →
To select sql max date - select LAST_UPDATE_DATE_TIME as LAST_UPDATE, SCHOOL_CODE, PERSON_ID from SCHOOL_STAFF WHERE STAFF_TYPE_NAME='Principal' AND LAST_UPDATE_DATE_TIME = (SELECT MAX(LAST_UPDATE_DATE_TIME) FROM SCHOOL_STAFF s2 WHERE PERSON_ID = s2.PERSON_ID) ShareIm
Answered Oct 6, 2022 · 741 Views Read answer →
Sometime back salesforce deprecated LWC playground: With all the innovation WebComponents.dev brings to the LWC ecosystem this does mean that we will be phasing out our LWC Playground on February 1, 2021. Salesforce invested in WebComponents.dev as a template for LWC. It is a better alternative than a playground.
Answered Oct 6, 2022 · 1.7K Views Read answer →
We use group by 1 2 because - Consider below case: +------------+--------------+-----------+ | date | services | downloads | +------------+--------------+-----------+ | 2016-05-31 | Apps | 1 | | 2016-05-31 | Applications | 1 | | 2016-05-31 | Applications | 1 | | 2016-05-31 | Apps | 1 | | 2016-05-31 | Videos | 1 | |…
Answered Oct 4, 2022 · 1.1K Views Read answer →
To resolve the error - must declare the scalar variable @id - @id as part of the execution variable @sql is doing nothing. It is not tied to the declared and set variable unless you build the string around it, i.e. concatenate it to the string like this: set @sql = 'insert into #temphold(dateadded,dateupdated,id) '…
Answered Oct 4, 2022 · 13.3K Views Read answer →
If you only need this interactively while in psql, you can also use dv to show postgresql list views, or dm for materialised views. Or use with +, like dm+ for example to show some additional information (mostly useful to see materialised view size).
Answered Sep 30, 2022 · 886 Views Read answer →
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