SQL Commands: Difference between revisions
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= | == PostgreSQL == | ||
== Functions == | <syntaxhighlight lang="bash"> | ||
psql postgres://user@localhost:5432/dbname?sslmode=require -c 'SELECT 1' | |||
</syntaxhighlight> | |||
== Common Operations == | |||
=== Functions === | |||
{| class="wikitable" | {| class="wikitable" | ||
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|} | |} | ||
== Visiting == | === Visiting === | ||
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|} | |} | ||
== CREATE USER == | === CREATE USER === | ||
{| class="wikitable" | {| class="wikitable" | ||
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|} | |} | ||
== GRANT == | === GRANT === | ||
{| class="wikitable" | {| class="wikitable" | ||
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|} | |} | ||
= SQLite 3 = | == SQLite 3 == | ||
{| class="wikitable" | {| class="wikitable" | ||
! TODO || Command | ! TODO || Command | ||
Revision as of 08:37, 20 October 2026
PostgreSQL
psql postgres://user@localhost:5432/dbname?sslmode=require -c 'SELECT 1'
Common Operations
Functions
| Postgres | MariaDB | SQLite | |
|---|---|---|---|
| Today |
Visiting
| Postgres | MariaDB | SQLite | |
|---|---|---|---|
| List tables | show tables; |
.tables |
CREATE USER
| Postgres | MariaDB | |
|---|---|---|
| create user | CREATE USER username WITH PASSWORD 'your_password';
|
|
| change password |
GRANT
| Postgres | MariaDB | |
|---|---|---|
| on database to user | GRANT ALL PRIVILEGES
ON DATABASE operation_center
TO db_user;
|
|
| on table to user | GRANT ALL PRIVILEGES
ON ALL TABLES
IN SCHEMA public
TO db_user;
|
SQLite 3
| TODO | Command |
|---|---|
| yyyymmdd to yyyy-mm-dd |
SELECT printf('%s-%s-%s',
SUBSTR(trading_date,1,4),
SUBSTR(trading_date,5,2),
SUBSTR(trading_date,7,2)
) FROM short_sell WHERE trading_date='20190605';
|