nquery | Generic SQL engine for Web and Big-data | SQL Database library
kandi X-RAY | nquery Summary
kandi X-RAY | nquery Summary
it could be used in some typical scenarios:.
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QUESTION
I have been trying to solve this problem for some time now. I'm writing an application using Swift/SwiftUI and FMDB over SQlite3. When a delete is executed on a table where there are existing foreign keys I expect the delete to fail. It doesn't and there is no error thrown.
In XCode I'm linking with libsqlite3.tbd listed as date modified 03/16/2021. Inside the tbd file I find: install-name: '/usr/lib/libsqlite3.dylib' current-version: 321.3 compatibility-version: 9
I find the libsqlite3.dylib in: /System/Volumes/Data/Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Library/Developer/CoreSimulator/Profiles/Runtimes/iOS.simruntime/Contents/Resources/RuntimeRoot/usr/lib Info shows it was created 04/09/2021. No apparent version
What is happening is that I have foreign keys on a table named BudgetedExpense to a table named BudgetDescription.
...ANSWER
Answered 2021-May-22 at 18:49Well after quite a few tests I've discovered what I need to do to be able to have the DELETE throw the "Foreign Key Constraint" error. There are three things I needed to do. 1). I need the PRAGMA statement as a part of the DELETE query like this:
QUESTION
i have some c++ project after a release of support c++20, i want to upgrade my makefile std support 17 to 20 after that point my compiler (gcc10.2) give me a error like this ;
...ANSWER
Answered 2021-Mar-16 at 23:15I ve no idea why it looks is getting bool(__x) <=> false as an bool and int comparison. I would think you got some strange macro in your files included before to include the header that is going to break the standard code. I would suggest you try to move above the standard headers and below them your 'user defined' headers.
QUESTION
@RequestMapping("/getSUID/{pid}")
public List index(@PathVariable("pid") String pid) {
System.out.println("pid"+pid);
String nquery=QueriesUtil.getQuery("STUDY_UID_TEST", true);
nquery=nquery.replace("<:PID>", pid);
System.out.println(nquery);
return jdbcTemplate.query(nquery, (rs, rowNum) -> new StudyUID(
rs.getInt("PERSON_ID"),
rs.getString("MODALITY"),
rs.getString("STUDY_UID"),
...ANSWER
Answered 2021-Jan-29 at 08:15One of the issues I see here is that your controller is doing all the work - getting a query, setting it up, executing it, and returning the results from the API call. Doing all these things in one place makes it hard to test. That also raises a question - what exactly are you trying to test? And what issues are you running into?
You might want to look at refactoring it to use a layered architecture instead. API -> Service Layer -> Repository layer.
This might be a cleaner structure, and you can then test layers independently:
- Check that the API calls the correct service layer method with the correct parameters.
- Check that the service layer calls the repository with the correct arguments.
- Check that the repository creates the correct query.
Alternatively, you could also do integration testing - just invoke the API and make sure that the correct result is returned.
Also, be wary of using String replacement in your queries. Rather have a look at PreparedStatement (https://docs.oracle.com/javase/tutorial/jdbc/basics/prepared.html).
QUESTION
This is with reference to
How to remove a document inside an array in mongodb using $pull
I need to remove empty sub arrays. I need to code this query in go lang
...ANSWER
Answered 2021-Jan-17 at 13:19The square brackets "[]" shall not be in quotes since now they are interpreted as string ... , they need to be added just as square brackets [] and require in golang: &[]int{} to be translated by the mongo goland driver to empty array ...
QUESTION
im trying to populate data from DB(using MySQL) into TableView, the problem i get is, whenever there is a NULL data in some column there will be an error NullPointerException, before using FX im using SWING component and there is no problem with my code, its kinda hard for me to porting it. im using NetBeans IDE and Gluon Scene Builder. the NULL data on DB are used purposedly for some conditional situation to create view in my DB. i think i know my problem are located in populating data in my HandlerComponent.java but i dont know what to do.
this is the code TableController.java
...ANSWER
Answered 2020-Jun-01 at 16:27You just need to check for null before attempting to call toString()
:
QUESTION
I am trying to create a streaming visualization from KSQLDB using Arcadia BI tool. I am able to establish a connection and see the streams and tables in KSQLDB from Arcadia. But while trying to sample data, I am getting error.Can anyone help?
...ANSWER
Answered 2020-Apr-27 at 12:00This is an issue with Arcadia and the version of KSQL that you're running.
There was a breaking change in ksqlDB 0.6 (shipped with Confluent Platform 5.4) which changed the syntax of queries. Pull queries were added and the previous "continuous queries" are known as "push queries" and denoted with a mandatory EMIT CHANGES
clause.
QUESTION
I have created an application which enables the user to run a query and fetch the results from rodbc. By default the query which is getting generated in the TextAreaInput is select * from $tableName. I have an action button 'Go' next to that Input box and when i press go the query gets executed and the result is fetched in the body. Now, I want the 'Go' button to be enabled only when the select query has 'when' clause in it. In short the user should be able to execute only when they have included a where clause in the query. I tied str_detect and grpl but they don't seem to be working. Amy help is much appriciated.
Regards
...ANSWER
Answered 2020-Apr-13 at 21:58shinyjs
can enable/disable buttons for us. grepl
can tell us if a string contains another string. The below minimal example shows this in action:
QUESTION
I'm trying to extract data from an API, but I'm getting an unsuccessful exit when I add updatedSince: \ "2020-01-01T00: 00: 00-0300 \"
Without this parameter the array is returned, but it doesn't have the data I want
index.js
...ANSWER
Answered 2020-Mar-13 at 17:29node:12444) UnhandledPromiseRejectionWarning: Unhandled promise rejection. This error originated either by throwing inside of an async function without a catch block, or by rejecting a promise which was not handled with .catch(). Above error, clearly says that you should handle promise rejection as you are throwing error
When status code is 400 or more than this code is
QUESTION
My backend is consist of Api and DB. When I want to get response from DB I have had delayed output by 1 query.
API (I think api is ok. Start read DB first)
ANSWER
Answered 2020-Mar-09 at 16:07If You want to return result of query so simply do following things:
1) add query
method to db module:
QUESTION
I'm trying to build an IdP using ITfoxtec. From the Service Provider's site, it will generate SAML requests and redirects them to the IdP. Now I'm on an IdP's login page, but I'm trying to understand how the ITfoxtec codes work.
...ANSWER
Answered 2020-Feb-17 at 09:24You are correct about the flow and that the SAML 2.0 Authn Response are generated right away. You need to implement the login dialog and username/password validation your self as you can see in my comment // **** Handle user login e.g. in GUI ****
.
Meaning that you need to cut the Login
method in half. After the first half of the Login
method you need to start some kind of sequence insight the IdP where the user is authenticated. And then return to the second half of the Login
method which issues the SAML 2.0 Authn Response.
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