Database

A database is a structured set of data held in a computer, most often a server. Databases use a database management system (DBMS) that interacts with users, similar to a lookup table. Modern databases are designed to allow for creation, querying, updating, and administration of the data it holds.

Today, etcdctl endpoint health only performs a quorum GET. If server is corrupted or exceeded quota (which put the server into read only mode), this command incorrectly returns healthy.

Since version 0.16.5, th following code returns a null worksheet:
XLSX.utils.json_to_sheet([], {header: columns})

Is it now working as it is wanted? If so, how could we create an empty worksheet? In my case it is expected that sometimes the data is an empty array. And an empty worksheet only with headers is expected.

SQL supports hidden columns: columns that are only included in a projection if explicitly requested. An example of this is the rowid column that is created on tables without explicitly primary keys.

Currently, there is no way to get a hidden column on a user-defined table: it's only possible if you manually set the hidden boolean in the table descriptor, by editing the CockroachDB source code

Sometimes it is needed to store compressed data in the DB. Unfortunately not all the DBs have built-in compression and FUSE compressed FSes are not available for every OS. So it may make sense to store compressed binary blobs in the DB.

Unfortunately when one sees them in DBeaver he sees them compressed, but often they are needed uncompressed. So it'd be nice to have a feature to decompress the

Location:
shardingsphere-jdbc/shardingsphere-jdbc-orchestration/src/main/java/org/apache/shardingsphere/driver/orchestration/api/OrchestrationShardingSphereDataSourceFactory.java

Issue description

Go 1.15 will introduce a new Validator interface, which may be implemented by Conn to allow drivers to signal if a connection is valid or if it should be discarded:

https://tip.golang.org/pkg/database/sql/driver/#Validator

For #7283 I need to call a different overload of DbConnection.Open in the SQL Server provider. I'm adding a template method to allow this, but similar template methods could be useful in other providers. Tentative list of relevant methods based on what RelationalCommand calls:

BeginTransaction
Close
EnlistTransaction
State
Dispose

We could also consider doing this for other Db

Jul	AUG	Sep
	29
2019	2020	2021

Database

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etcd-io / etcd

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dgraph-io / dgraph

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apache / shardingsphere

realm / realm-java

boltdb / bolt

arangodb / arangodb

go-sql-driver / mysql

Issue description

dotnet / efcore

valeriansaliou / sonic

onurakpolat / awesome-bigdata