DBEngine | value store that is inspired from Google 's LevelDB | Key Value Database library

 by   prakhar2808 C++ Version: Current License: No License

kandi X-RAY | DBEngine Summary

kandi X-RAY | DBEngine Summary

DBEngine is a C++ library typically used in Database, Key Value Database applications. DBEngine has no bugs, it has no vulnerabilities and it has low support. You can download it from GitHub.

A key-value store that is inspired from Google's LevelDB architecture. It provides an ordered mapping from string keys to string values in the form of memtables (in-memory) and sstables (on-disk).
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              DBEngine has a low active ecosystem.
              It has 2 star(s) with 1 fork(s). There are 1 watchers for this library.
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              It had no major release in the last 6 months.
              DBEngine has no issues reported. There are no pull requests.
              It has a neutral sentiment in the developer community.
              The latest version of DBEngine is current.

            kandi-Quality Quality

              DBEngine has 0 bugs and 0 code smells.

            kandi-Security Security

              DBEngine has no vulnerabilities reported, and its dependent libraries have no vulnerabilities reported.
              DBEngine code analysis shows 0 unresolved vulnerabilities.
              There are 0 security hotspots that need review.

            kandi-License License

              DBEngine does not have a standard license declared.
              Check the repository for any license declaration and review the terms closely.
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              Without a license, all rights are reserved, and you cannot use the library in your applications.

            kandi-Reuse Reuse

              DBEngine releases are not available. You will need to build from source code and install.

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            DBEngine Key Features

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            DBEngine Examples and Code Snippets

            No Code Snippets are available at this moment for DBEngine.

            Community Discussions

            QUESTION

            Microsoft Access - Loop through form field names for my sql Insert query
            Asked 2022-Mar-17 at 15:05

            I have a form where I want to track asset information for many assets (Assets are already written on the form that the employees fill out)

            Assets Hours DSL DEF COOL 10W 30W 40W *Then 12 more fields Asset 1 Asset 2 *Then 55 more assets

            The fields are unbound and the field names are exactly the same but just numbered chronologically (asset1, hours1, dsl1...asset2, hours2, dsl2...etc). I want to know if I can create a loop to save all the rows at the same time by changing the field name.

            I'm kind of new to loops, but I wanted to see if it was even possible to change the field name through a loop so I used:

            ...

            ANSWER

            Answered 2022-Mar-17 at 15:05

            Look at comments under question! Thank you @MichaelMurphy and @June7; it works PERFECTLY!!

            Edit: written explanation

            Me being dumb, these fields were incorrect (thank you @MichaelMurphy):

            Source https://stackoverflow.com/questions/71473077

            QUESTION

            MS Access VBA: Added columns to table but now SQL "INSERT INTO" won't work anymore
            Asked 2022-Mar-08 at 01:13

            I added two new fields in our table "MTOStudy" & "OtherDesc" as Short Text data types. The other data types within the table are Number and Yes/No values.

            However, adding the two columns and updating the table's respective form in Access I can't get to update the table after clicking the button.

            Things I've confirmed:

            1. The button works, using the message box function.
            2. Variables line up with the table's.
            3. The code is identical to the working function excluding the addition of the "MTOStudy" and "OtherDesc" variables
            4. The Error Code I've been seeing is "Error number: 3078 ; The MS Access db engine cannot find the input table or query '128'. Make sure it exists and that its name is spelled correctly."

            Debug's line: INSERT INTO tbl_MTO_vs_ETO ([Order], [Line], [MTO], [ETO], [DUP], [MTOStudy], [OtherDesc]) VALUES ( , , -1, 0, 0, "TEST ONE PUMP", "")

            Here's the function below:

            ...

            ANSWER

            Answered 2022-Mar-07 at 19:44

            If MTOStudy or OtherDesc have quote/apostrophe characters in them (" or ') this will blow up unless you filter these characters out of the input or write yet more code to handle them. You're much better off using a recordset as HackSlash notes above.

            Source https://stackoverflow.com/questions/71384518

            QUESTION

            Pandas to_sql() CREATE TABLE permission denied
            Asked 2022-Feb-09 at 10:52

            I am trying to write a df to an existing table with pandas.to_sql with this code:

            ...

            ANSWER

            Answered 2022-Feb-09 at 10:52

            You might need to add create permission to the SQL Server user. You can follow below steps from the link:

            To add a Windows user that has the login “domainname \username” to the sysadmin fixed server role

            a. Log on to the computer using the credentials for the domainname\username account.

            b. Click the Start button, point to All Programs, click Microsoft SQL Server, right-click SQL Server Management Studio, and then click Run as administrator. ps: "Run As Administrator" option elevates the user permissions In the User Access Control dialog box, click Continue.

            c. In SQL Server Management Studio, connect to an instance of SQL Server.

            d. Click Security, right-click Logins, and then click New Login.

            e. In the Login name box, enter the user name.

            f. In the Select a page pane, click Server Roles, select the sysadmin check box, and then click OK.

            Source https://stackoverflow.com/questions/71048056

            QUESTION

            Force SQLAlchemy to Log to File Only
            Asked 2022-Jan-26 at 13:46

            I'm using Python (3.8) and SQLAlchemy (1.4.29) to work with an SQL database for a web application project. According to SQLAlchemy's Engine Configuration docs, I can use Python's logging module to control where and how the logs output.

            I want the SQLAlchemy engine to output to a file (logs/actions.log), and stop the logger from outputting to sys.stdout, so I took this approach:

            ...

            ANSWER

            Answered 2022-Jan-25 at 19:53

            Try adding logger.propagate = False - it may be that the events logged to the sqlalchemy logger are also passed to a StreamHandler attached to the root logger. You can print logging.getLogger().handlers to see if that is the case. If not, check if the last two lines add a handler that you're not aware of by printing logger.handlers after those two calls.

            Source https://stackoverflow.com/questions/70851326

            QUESTION

            Microsoft Access DBEngine.OpenDatabase() breaks for Network-Paths - Error 3050
            Asked 2022-Jan-12 at 23:13

            We have an Access Database-Solution with Frontend and Backend Database running for years.

            Now within the last two days problems occurred. E.g.

            ...

            ANSWER

            Answered 2021-Dec-15 at 14:30

            From Microsoft:

            This is due to today’s (Patch Tuesday) update to Office. The problem was introduced by a security fix, so it impacts all active versions of Access. We are working on a fix, and will deliver it as quickly as possible.

            The update has only been set to automatically update a very small percentage of users, and it looks like we will be able to pause automatic updates, so it will not propagate.

            There will be a page added to the

            Fixes or workarounds for recent issues in Access (microsoft.com),

            which will then be the place to go for updates.

            These are the updates that introduced the problem:

            Source https://stackoverflow.com/questions/70365001

            QUESTION

            How To Prevent Fast Execute Many Giving Truncation Error
            Asked 2021-Dec-16 at 14:31

            Not sure how to reproduce this as I'm not sure what is causing the issue in the first place, however, I have the currently line of code which writes data to an SQL Server Table.

            ...

            ANSWER

            Answered 2021-Dec-16 at 14:31

            The issue was I was using an incorrect engine and not replacing the table everytime a new column was found. Changing the engine fixed this and now everything writes to the database as required.

            Source https://stackoverflow.com/questions/70380351

            QUESTION

            Duplicate form button with multivalued field and subform
            Asked 2021-Oct-17 at 16:55

            I am trying to duplicate a form from a button using vba. This has worked for years using Allen Browne's "Duplicate the record in form and subform." http://allenbrowne.com/ser-57.html

            Now I want to change one of the fields to multivalue. I understand the difficulties with multivalued fields, but this is a 10 year old database and all I need to do is make this field be able to store multiple values, so think this will be easier than creating a new join table and updating everything related.

            I am currently getting Invalid use of Property at the rstmv = rstmv.Value line.

            I have tried numerous versions and get different errors. I think I should be opening the values of the multi-value field as a separate recordset, updating it then looping through the values but I am getting confused as I am not really sure what I am doing.

            Here is the code I I have been using:

            ...

            ANSWER

            Answered 2021-Oct-10 at 12:23

            Need recordsets of source data and recordsets for destination. Also should explicitly declare the recordset type as DAO. Consider:

            Source https://stackoverflow.com/questions/69514372

            QUESTION

            I'm trying to implement late binding on an access front end and can not get a DAO refrence to work
            Asked 2021-Sep-20 at 10:45

            I'm working on making a database late bound, so that when the front end is opened, users with different version of MS Office won't have issues. I keep on getting a run time error 438 (Object doesn't support this properts or method) in this code, on the line with For Each tdf In dbs.TableDefs.

            I can't see what is going wrong here. Everything is declared and it should find it. Can someone point out what might be happening?

            ...

            ANSWER

            Answered 2021-Sep-19 at 11:11

            You need to actually open a database if you want to use tables.

            You have set dbs to be a database engine, not a database.

            If you want it to be the current database, just set it as such, no early binding needed:

            Source https://stackoverflow.com/questions/69242428

            QUESTION

            c# read/edit accdb macro
            Asked 2021-Sep-07 at 06:46

            I am trying to access the macros inside of an Access database (accdb).

            I tried using:

            ...

            ANSWER

            Answered 2021-Aug-31 at 17:30

            You can skip the DAO part, it's not needed in this case. Macros are project specific, so in order to get them all, you would need to loop through your projects. In my example, i just have one project.

            Source https://stackoverflow.com/questions/69002193

            QUESTION

            Delete attribute from SQLAlchemy model object
            Asked 2021-Jun-10 at 14:11

            I'm trying to delete an attribute from model object that is created on the go, but there seems to be some problem doing so. So, far I've searched through every place including SQLAlchemy documentation and some of its code to find a potential fix but unable to find one.

            Below code works fine on python classes but not with a class inherited from declarative_base

            ...

            ANSWER

            Answered 2021-Jun-10 at 14:11

            So this was expected, as SQLAlchemy ORM mapped objects don't support this particular state for an attribute, that is, attribute doesn't exist and would raise AttributeError. for an ORM mapped class, a mapped attribute always defaults to None and/or empty collection. there's a little bit of an introduction to this here: https://docs.sqlalchemy.org/en/14/tutorial/orm_data_manipulation.html#instances-of-classes-represent-rows

            For this particular problem, you can define your column as

            Source https://stackoverflow.com/questions/67920669

            Community Discussions, Code Snippets contain sources that include Stack Exchange Network

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            You can download it from GitHub.

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