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SQL stands for structured query language. It uses commands such as "select", "insert", "update", "delete". Some common relational database management systems that use SQL are: Oracle, MySQL, Microsoft SQL Server, PostgreSQL, etc.

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cockroach
rafiss
rafiss commented Jan 25, 2021

The PGJDBC docs describe how one can include a URL parameter of options in order to set session variables: https://jdbc.postgresql.org/documentation/head/connect.html#connection-parameters

This is important because PGJDBC does not allow one to set session variables directly in the URL. That is, you need to specify like this:

postgresql://user@host:port/database?options=-c%20serial_nor
dbeaver
KOLANICH
KOLANICH commented Jan 11, 2019

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

ClickHouse
yunchat
yunchat commented Nov 13, 2018

Now insert and query share the resource ( Max Process Count control) 。 When the query with high TPS,the insert will get error (“error: too many process”). I think separator the resource for Insert and Query will makes sense. Ensure enough resource for insert。It looks like Use Yarn, Insert and Query use the different resource quota。
Or the simple way , Can we set Ratio for Insert and

KristjanTammekivi
KristjanTammekivi commented Jan 11, 2021

Environment

Knex version: 0.21.12
Database + version: Postgres 13
OS: Linux

Bug

  1. Explain what kind of behaviour you are getting and how you think it should do

Combining .pluck() with .first() yields strange behaviors. If .first() is before .pluck(), then the result is an array of plucked elements. If .first() is before .pluck() then the result is object with the plucked key and

JeanGolang
JeanGolang commented Feb 7, 2017

Hello Philip!
I think there is an issue with this part of the code of rqlite (store/store.go).

func (s *Store) Database(leader bool) ([]byte, error) {
	if leader && s.raft.State() != raft.Leader {
		return nil, ErrNotLeader
	}
	// Ensure only one snapshot can take place at once, and block all queries.
	s.mu.Lock()
	defer s.mu.Unlock()

	f, err := ioutil.TempFile("", "rqlilte-snap-
devops-exercises
surister
surister commented Jan 21, 2020

This is a reminder for me or a task if anyone wants :P

imagen

Basically, The last two questions aren't really regex's questions.

To do:

  • Move said questions to correct place.
  • Add new regex questions (Python related!)?
  • Maybe add a new ## Regex section, as it is a valuable skill

Created by Donald D. Chamberlin, Raymond F. Boyce

Released 1986

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Wikipedia

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