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DATABASE QUESTIONS

How would be data stored at database in case of social networking site?
How would be data stored at database in case of social networking site?
I wish this helpful for you This would seem like a MANY-TO-MANY Situation.Something like, where UserRelations.UserID and UserRelations.UserRelatedID should be foreign keys to Users
TAG : database
Date : November 27 2020, 07:01 PM , By : Iglo619
Is there any NoSQL data store that is ACID compliant?
Is there any NoSQL data store that is ACID compliant?
I think the issue was by ths following , I'll post this as an answer purely to support the conversation - Tim Mahy , nawroth , and CraigTP have suggested viable databases. CouchDB would be my preferred due to the use of Erlang, but there are others o
TAG : database
Date : November 27 2020, 07:01 PM , By : Rakhal Nama Sudra
Why use NoSQL over Materialized Views?
Why use NoSQL over Materialized Views?
should help you out One reason is that materialized views will perform poorly in an OLTP situation where there is a heavy amount of INSERTs vs. SELECTs.Everytime data is inserted the materialized views indexes must be updated, which not only slows do
TAG : database
Date : November 27 2020, 07:01 PM , By : GoetzingerC
Cannot deploy database from TFS
Cannot deploy database from TFS
around this issue I had the same problem, but since it was a legacy database with thousands of "warnings", I couldn't realistically get rid of all the warnings. The TSD01234 error is caused by having the "Verify Deployment" setting checked in your pr
TAG : database
Date : November 26 2020, 07:01 PM , By : user3863559
mysql query to get unique value from one column
mysql query to get unique value from one column
hope this fix your issue i have a table named locations of which i want to select and get values in such a way that it should select only distinct values from a column but select all other values . , You could do this:
TAG : database
Date : November 24 2020, 07:00 PM , By : user3857543
Storing data when using Greasemonkey
Storing data when using Greasemonkey
I hope this helps you . Well here are the options: Setup a server to save the data for the user, and use xhr to create/edit/remove data (Google App Engine (GAE) offers a lot of free storage space). Use Web Storage which is implemented in Firefox. Use
TAG : database
Date : November 19 2020, 07:01 PM , By : Claudio
Very long strings as primary keys in a database for caching
Very long strings as primary keys in a database for caching
will be helpful for those in need How about using an auto-incremented integer key, and, next to it, you can store the file name?If you like, you can even implement that all the file names must be unique.
TAG : database
Date : November 19 2020, 07:01 PM , By : benutzerfreund
Android SQLite database locale, locking, and version
Android SQLite database locale, locking, and version
I hope this helps you . You use setLocale() when you have certain content in different languages and you want to do custom order by. Android SDK allows you to call order by using
TAG : database
Date : November 19 2020, 07:01 PM , By : user3861218
setSelection on Spinner based on rowId
setSelection on Spinner based on rowId
it fixes the issue If you want to set the selection of a Spinner thats backed by a CursorAdapter, you can loop through all the items in the Cursor and look for the one you want (assuming that the primary key in your table is named "_id"):
TAG : database
Date : November 19 2020, 07:01 PM , By : user3861053
If change in a directory then do some action in linux
If change in a directory then do some action in linux
I wish did fix the issue. I want to store the file and file information into the database automatically, when any file is inserted into the directory. , INOTIFY(7) Linux Programmer’s Manual INOTIFY(7)
TAG : database
Date : November 18 2020, 07:00 PM , By : user3860976
Exporting database on oracle
Exporting database on oracle
To fix this issue Use RMAN to take a full backup. Then restore it on the new server.See Clone using RMAN Article
TAG : database
Date : November 17 2020, 07:01 PM , By : Asif Hassan Russel
Auto Reconnect of Database Connection
Auto Reconnect of Database Connection
To fix the issue you can do I have a DBCP connection pool in Tomcat. The problem is that when the connection is lost briefly the appliction is broken because DBCP won't try to reconnect again later when there is a connection. Can I get DBCP to reconn
TAG : database
Date : November 17 2020, 07:01 PM , By : user3860400
How to use the distinct on databases DB4O
How to use the distinct on databases DB4O
it helps some times As far as I know db4o has no direct support for the 'distinct' operation. However since you're using the .NET-framework you can use the LINQ-Distinct operation on you result. I assume you're using .NET 3.5 and C. Tell me when I'm
TAG : database
Date : November 15 2020, 07:01 PM , By : user3859846
Which DB (SQL) is better supported in Erlang?
Which DB (SQL) is better supported in Erlang?
I hope this helps you . The Erlang ODBC interface can be used to connect to any database that has an ODBC driver. This is officially supported and can be used with both MySQL and Postgres. There is a 100% Erlang driver for Postgres called PGSQL. This
TAG : database
Date : November 14 2020, 07:01 PM , By : Mika
How to bring coordination between file system and database?
How to bring coordination between file system and database?
To fix the issue you can do Access to the file system is indeed not transactional. You will need to simulate an all-or-nothing distributed transaction yourself: if the commit in database fails, delete the file on file-system. Inversely, if writing fi
TAG : database
Date : November 13 2020, 07:01 PM , By : user3859239
Good DB Migrations for CakePHP?
Good DB Migrations for CakePHP?
I wish did fix the issue. I'll try to update this "topic" with my findings after quickly trying Juan's plugin and all the others mentioned except the one from CakeDC... since I don't have the relevant app updated for CakePHP 1.3 and that migration pl
TAG : database
Date : November 12 2020, 07:00 PM , By : Crystal Toh
How to install Aerospike on Mac?
How to install Aerospike on Mac?
it helps some times I recorded this few months ago along with two other videos in this set. See if this youtube video helps you out: https://www.youtube.com/watch?v=qm42c0juam4list=PLGo1-Ya-AEQDa32hFggyB0yIIOldxUFwvindex=3 Here is the output from my
TAG : database
Date : November 11 2020, 07:00 PM , By : Good
What is the standard or best way to deal with database branching with Mercurial or Git branches?
What is the standard or best way to deal with database branching with Mercurial or Git branches?
hope this fix your issue Using a database changset tool can be really helpful. I've used liquibase (http://www.liquibase.org), at work to manage version control for the db. I would warmly recommend that tool to anyone. Liquibase does support changese
TAG : database
Date : November 11 2020, 07:00 PM , By : ajkirkland
Anyone using NoSQL databases for medical record storage?
Anyone using NoSQL databases for medical record storage?
it fixes the issue A handful of large healthcare software vendors use some version of MUMPS, definitely a non-SQL database. Epic, Meditech, GE, and the VA's VistA all use some implementation of MUMPS. MUMPS lends itself well to healthcare solutions i
TAG : database
Date : November 11 2020, 07:00 PM , By : Jose Peinado
merging two duplicate contacts/ColdFusion
merging two duplicate contacts/ColdFusion
I think the issue was by ths following , I will say that the fact that the app is ColdFusion is pretty well irrelevant to your problem.It seems like some of what you're asking depends on your business requirements. Do you need to retain older notes?
TAG : database
Date : November 11 2020, 07:00 PM , By : Ax Constantin
How to use Data aware controls "correctly"?
How to use Data aware controls "correctly"?
wish of those help I've written applications that used data aware components against TTable style components and applications which used non-data aware components. My preference these days is to use data aware components but with TClientDataSets rath
TAG : database
Date : November 09 2020, 07:01 PM , By : TheD
Version of SQLite used in Android?
Version of SQLite used in Android?
I wish this help you UPDATE OCT 2016: Here is a link to the updated official docs which includes the main points in this answer: android.database.sqlite package-level javadocUsing the emulators:
TAG : database
Date : November 08 2020, 07:01 PM , By : Swampmama
How to do database schema migrations in Android?
How to do database schema migrations in Android?
this one helps. Yes SQLiteOpenHelper has support for migrating between different versions of DB schemas.Upgrading is done by implementing
TAG : database
Date : November 07 2020, 07:01 PM , By : krishsan2k
Compressing large text data before storing into db?
Compressing large text data before storing into db?
Does that help I don't know who would compress the data more efficiently, you or the db, depends on the algo used etc. But what is sure is that if you compress it, asking the db to compress it again will be a waste of CPU. Once compressed, trying to
TAG : database
Date : November 04 2020, 07:01 PM , By : user3856466
Ideas on Populating the Fact Table in a Data Mart
Ideas on Populating the Fact Table in a Data Mart
I wish this helpful for you Each dimension table should have a BusinessKey that uniquely identifies the object (person, date, location) that a table row describes. During loading of the fact table, you have to lookup the PrimaryKey from the dimension
TAG : database
Date : November 03 2020, 07:01 PM , By : allWin
Capitalization of Person names in programming
Capitalization of Person names in programming
I wish did fix the issue. The only sensible way to handle it, in my opinion, is to let the users tell you how their name should be capitalized. Any automatic scheme is going to annoy someone.
TAG : database
Date : November 03 2020, 07:01 PM , By : user3856075
Printing ERD from SchemaSpy output
Printing ERD from SchemaSpy output
seems to work fine SourceForge messed with the Wiki that was being used for the SchemaSpy FAQ which mentions printing ERDs. I've replaced the page but still need to update the links to it.You should be able to specify the dimensions for an A3 page di
TAG : database
Date : November 02 2020, 07:01 PM , By : fritx
Changing IDs and updating tables
Changing IDs and updating tables
hope this fix your issue If you have no dependencies to take care of, a really stupidly simple solution comes to mind:Pseudocode:
TAG : database
Date : October 28 2020, 08:00 PM , By : Joseph Orjinta
How do you paginate results from a dynamic search in Django?
How do you paginate results from a dynamic search in Django?
I wish this help you I would check out django-pagination. It will handle pagination for you on the template level. It's really easy to integrate.
TAG : database
Date : October 28 2020, 04:55 PM , By : Niall Murphy
How to implement `pivot` in clickhouse just like in dolphindb
How to implement `pivot` in clickhouse just like in dolphindb
Hope that helps It is the preliminary implementation that can help you make a start.Remarks:
TAG : database
Date : October 21 2020, 06:10 AM , By : joGau
Compatibility of Apache Cassandra with YugaByte
Compatibility of Apache Cassandra with YugaByte
seems to work fine Short answer is yes because the YugaByte Cloud QL (YCQL) API is wire compatible with Apache Cassandra QL. This means that YugaByte DB servers implement the same wire protocol and modeling/query language as Apache Cassandra QL. Sinc
TAG : database
Date : October 13 2020, 02:00 PM , By : Hai Kal
How to get information from database to React site
How to get information from database to React site
wish of those help You can use fetch API to get those data from the server, and call the method fetchData() via life cycle hook componentWillMount() to send request to the server before the page is mounted, you can then iterate each of the elements i
TAG : database
Date : October 12 2020, 03:00 PM , By : Muhammad Uzair
Query to find all DML operations performed by all users(developers) on a table
Query to find all DML operations performed by all users(developers) on a table
help you fix your problem You have two options1) Create a trigger on the table you want, and write to a audit table you had created
TAG : database
Date : October 11 2020, 07:00 AM , By : Russell Beazell
How to stream data from database via REST API?
How to stream data from database via REST API?
To fix the issue you can do You could use debezium or apache-kafka-connect to bulk load your database into Kafka.Once the data is there, you can either put a Kafka consumer within your Django application or outside of it and make REST requests as mes
TAG : database
Date : October 11 2020, 05:00 AM , By : SlothfulPuppy
Data encryption at AWS QLDB
Data encryption at AWS QLDB
hope this fix your issue With the general availability announcement on 9/10/29, this question is now answered in the FAQ of Amazon QLDB.
TAG : database
Date : October 10 2020, 05:00 AM , By : Bruce Reid
Job Executable Oracle 8i
Job Executable Oracle 8i
I wish this help you The DBMS_SCHEDULER package/feature was not introduced till 10g. I was going to tell you to check if the DBA_JOBS package exists on 8i, but DBA_JOBS did not support executing OS scripts. So instead of invoking export from the data
TAG : database
Date : October 09 2020, 10:00 PM , By : bassfan
Probability: Estimating NoSQL Query Size / COUNT Using Random Samples
Probability: Estimating NoSQL Query Size / COUNT Using Random Samples
Any of those help This actually would be better on math or statistics stack exchange.The reasonable estimate is that if R is large and x is your order statistic, then R is approximately n / x - 1. About 95% of the time the error will be within 2 R /
TAG : database
Date : October 09 2020, 06:00 PM , By : Thimantha
@JoinColumn and mappedBy for owning side and reverse side
@JoinColumn and mappedBy for owning side and reverse side
Any of those help I have question regarding the @JoinColumn and mappedBy in hibernate, after i read through so many posts in stackoverflow and other blogs, i still confuse. , User -> Asset (One to Many) Employee.java
TAG : database
Date : October 09 2020, 10:00 AM , By : Techroo
Object types in Firestore?
Object types in Firestore?
seems to work fine Firestore does not have an enumeration type. If there are limits to what values should be in the database, you have to control that on your own. Security rules will help you validate data coming from mobile clients.
TAG : database
Date : October 08 2020, 07:00 PM , By : Humming Bird
Represent levels in a single table or multiple tables
Represent levels in a single table or multiple tables
I hope this helps you . This depends on your business requirement.Benefits of "multiple tables with not nullable levels" are
TAG : database
Date : October 08 2020, 01:00 PM , By : Hami Keno
Mongodb Error when export database and collection
Mongodb Error when export database and collection
this will help You should be running mongodump from the system command line, not your mongo shell.
TAG : database
Date : October 08 2020, 09:00 AM , By : Steve G.
How to use Diesel with SQLite connections and avoid `database is locked` type of errors
How to use Diesel with SQLite connections and avoid `database is locked` type of errors
hope this fix your issue Recently I also stumbled onto this problem. Here's what I found.SQLite does not support multiple writers.
TAG : database
Date : October 07 2020, 08:00 PM , By : Honey Singla
How to schedule a cron job in windows to execute a query or stored procedure in oracle database at specific interval?
How to schedule a cron job in windows to execute a query or stored procedure in oracle database at specific interval?
this will help If you're scheduling a job in Oracle then you almost certainly want to use DBMS_SCHEDULER. It is safer, more powerful, and more reliable than default operating system schedulers. It's also portable, and the same job will work no matter
TAG : database
Date : October 07 2020, 04:00 PM , By : Sunil Ghimire
Deeply Nested Data - Properties in AgensGraph
Deeply Nested Data - Properties in AgensGraph
Does that help Unless other graph databases such as Neo4j, in AgensGraph properties, can have nested JSON objects as their values. AgensGraph uses PostgreSQL’s JSONB and any data type supported by PostgreSQL can be stored into the properties of verti
TAG : database
Date : October 07 2020, 07:00 AM , By : wormmoon
how to fetch log of package while calling from diffrent database?
how to fetch log of package while calling from diffrent database?
Any of those help You forgot to set serverout on over DB link.See my example below:
TAG : database
Date : October 06 2020, 05:00 PM , By : jamesw
How can I safely kill a SID in Oracle and ensure it was not recently re-used?
How can I safely kill a SID in Oracle and ensure it was not recently re-used?
like below fixes the issue I assume when you say you're killing the session that you're doing something like issuing an
TAG : database
Date : October 06 2020, 03:00 PM , By : wenjing tang
How to change RUs in Cosmos DB according to time of the day?
How to change RUs in Cosmos DB according to time of the day?
I think the issue was by ths following , you cannot do that natively, yet, in Cosmos DB. So you are left with workarounds, which are plenty: Build job on some ci system that would trigger at certain time and do the scaling Azure Automation runbook wi
TAG : database
Date : October 06 2020, 03:00 PM , By : GOPINADH URIBINDI
How do I connect to an IBM Db2 Event Store instance from a remote Db2 instance?
How do I connect to an IBM Db2 Event Store instance from a remote Db2 instance?
I wish this helpful for you Yup! You're actually very close. Given you are connected to your Db2 Event Store database, you can run:
TAG : database
Date : October 06 2020, 03:00 PM , By : Issei Numata
Database selection for Read-only and write-once(insert) every growing data not to be modified
Database selection for Read-only and write-once(insert) every growing data not to be modified
may help you . Full Disclosure - I work on the Scylla project.I agree that, if fault-tolerance and availability are your primary requirements, you should choose Cassandra or Scylla, as they are best-in-class at those requirements. (Scylla is a re-imp
TAG : database
Date : October 06 2020, 01:00 PM , By : nacho_libre
ERROR "ora-01950: no privileges on tablespace" during Import Oracle Dump in AWS Oracle RDS
ERROR "ora-01950: no privileges on tablespace" during Import Oracle Dump in AWS Oracle RDS
it should still fix some issue I am trying to move one Oracle 12 database from one Oracle RDS to another using datapump full , Do not import in full mode.
TAG : database
Date : October 05 2020, 12:00 PM , By : Anjani Dubey
Challenges in Upgrading ClickHouse from 1.1.54343 to 19.*
Challenges in Upgrading ClickHouse from 1.1.54343 to 19.*
will be helpful for those in need It is recommended to set up a testing environment first if you don't have one yet. Install the same ClickHouse version you currently have in production, run realistic workload there, see if everything continues to ru
TAG : database
Date : October 05 2020, 02:00 AM , By : Drew Brown
Advice on adding index in db2
Advice on adding index in db2
this will help This answer contains general advice about levers that may be available to you.Your situation happens in many companies that are subject to regulatory requirements for multi-year online data retention.
TAG : database
Date : October 05 2020, 12:00 AM , By : Tanmoy
How To Completely DETACH a table from Clickhouse
How To Completely DETACH a table from Clickhouse
it should still fix some issue To delete all data inside the table you can use TRUNCATE TABLE statement or just do DROP TABLE and CREATE TABLE ... one more time.
TAG : database
Date : October 04 2020, 11:00 PM , By : Jaya Acharya
How to use flyway to migrate data from one DB to another DB?
How to use flyway to migrate data from one DB to another DB?
will be helpful for those in need Flyway doesn't directly support such a capability. However, you could do the following: As Laurenz says, use pg_dump to extract DB A into a script file Create a Flyway migration script and copy in the contents of the
TAG : database
Date : October 04 2020, 07:00 PM , By : Natalie Sebastian
Postgres autovacuum high cpu/disk after database import
Postgres autovacuum high cpu/disk after database import
wish helps you Database have to re create statistics and visibility map after import. So it is expected behaviour. If you don't run VACUUM manually or autovacuum was disabled, then Postgres will not work effectively. Export is a read operation, there
TAG : database
Date : October 04 2020, 01:00 PM , By : Ciaran
How to get the data/value size from CHAR column of Oracle Database?
How to get the data/value size from CHAR column of Oracle Database?
I wish this helpful for you If you want a variable length column then use VARCHAR2 and not CHAR.
TAG : database
Date : October 04 2020, 01:00 AM , By : JM Reyes
How to mock a ping command
How to mock a ping command
hop of those help? Update: As of Jan 6, 2020, this functionality has been added to go-sqlmock, and is included in the v1.4.0 release.
TAG : database
Date : October 03 2020, 11:00 PM , By : Boris Lyadov
Is there any way to fix Illegal offset type error when i try to update the content of pivot table in laravel
Is there any way to fix Illegal offset type error when i try to update the content of pivot table in laravel
seems to work fine updateExistingPivot() expects 2 params, the first being the id of the relationship you want to update, the second being the array of columns you wish to update. You're not passing an id, so it's trying to use your array as the id,
TAG : database
Date : October 03 2020, 03:00 PM , By : Jacoby Joukema
Cassandra cql equivalent of over() from sql
Cassandra cql equivalent of over() from sql
I think the issue was by ths following , Cassandra has very limited support for aggregation functions. This specific function doesn't exist in the CQL. If you need to perform this operation over the data in Cassandra, then you can use Spark SQL Windo
TAG : database
Date : October 03 2020, 03:00 AM , By : Rapos
Dynamic Icons in Flutter
Dynamic Icons in Flutter
like below fixes the issue This might help someone in the future.You do not need to use any Map to create an icon from dynamic name (too much copy-pasting). Instead of icon names you can use icon's numeric identifier from the Icons Class.
TAG : database
Date : October 03 2020, 01:00 AM , By : Emmanuel Obeng

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