-15 SQL: , +
-15 - SQL ( ) + .
SQL (Structured Query Language) , . , , . SQL , MySQL, PostgreSQL, Microsoft SQL Server .
1. SQL- [Skillbox] - 826
: 4 330 ₽ / . 12 , 2
: . . . .
SQL PL/SQL, , , .
:
SQL, .Oracle Apex
-, Oracle Apex.
, , , , sum, avg, count, having .
, .
:
SQL
SQL
PL/SQL
PL/SQL
PL/SQL.
2. SQL [Skillbox] - 826
: 6 203 ₽ / . 6 , 2
: . . .
, . SQL, , .
:
()
MySQL, PostgreSQL, MS SQL.
SQL, SELECT, INSERT, UPDATE, DELETE, , , .
, , , SQL.Excel
Excel.
:
SQL
SELECT
SELECT
Excel
.
: 37 400 ₽ 12 - 3 276 ₽ / ., 2
: .
, .
:
SQL
, PostgreSQL, , , . .
, PostgreSQL, , , .SQL
, JOIN (SUM, COUNT, AVG), , SELECT, WHERE, JOIN, ORDER BY , , .SQL
, CREATE TABLE, ALTER TABLE, DROP TABLE, , . .PostgreSQL
, , .SQL
, , , , .
14 , , , - .
4. SQL [SkillFactory] - 427
: 22 680 . - 37 080 ., 7
: 240 . SQL- . , , - . .
:
- .
.
A/B- .
:
SQL
-
.
:
:
.
: 95 000 ₽ - 9 500 ₽ / ., 6
: , . OTUS, .
:
.
, PostgreSQL, MySQL, Redis, MongoDB, Cassandra , .
SQL, DDL, DML.
, Clickhouse + Superset.
SQL-.
, , .
:
.
PostgreSQL.
MySQL.
NoSQL , Redis, Tarantool, MongoDB, Cassandra.
.
: 3 900 ₽ , 30
: , .
SQL , . , . SQL, SELECT, FROM, WHERE, JOIN, GROUP BY ORDER BY, .
SQL , , .
, , , , .
7. SQL 0 [ProductStar] - 58
: 39 600 ₽ 24 - 1 833 ₽ / ., 2
: , . 70% , , -. , , .
:
SQL, Python , .
SQL- .
SQL , Excel , -.SQL
, PostgreSQL.
:
SQL
SQL
SQL
SQL
/ SQL
SQL
SELECT FROM
JOIN WHERE
,
,
SQL
Tableau
Power BI Power Query
Power BI
Power BI.
8. SQL [Eduson Academy] - 171
: 2 691 . / . 12 , 3-4 ( )
: . . . .
- SQL, , , .
:
Excel Power BI
SQL-
.
:
SQL.
PostgreSQL.
SQL- .
.
SQL.
DDL.
Excel Power BI.
9. SQL [SF Education] - 120
: 11 300 ₽ 24 - 470 ₽ / ., 1
: , 24/7. 9- IT. . .
SQL , middle. , , , . , , .
:
SQL.
.
.
.
: 20 000 ₽, 5
(), SQL-, Google BigQuery , .
:
.
SQL-.
SQL.
SQL .
.
Google BigQuery.
.
.
.
.
: 46 000 ₽ 4 - 12 750 ₽ / ., 4
:
SQL-, , ORM.
.
.
PL/pgSQL.
.
.
:
.
SQL .
SQL .
SQL.
ORM .
: 32 350 ₽ - 38 990 ₽, 24 . . + 12 . .
:
.
SQL.
SQL.
.
.
:
.
.
.
.
.
.
.
: 24 000 ₽, 1
SQL , , , . , , PostgreSQL, MS SQL Server Oracle SQL.
:
SQL.
(View) SQL .
(Rule) SQL .
SQL.
SQL.
SQL.
.
14. SQL [Shultais Education] - 1
: 900 ₽ - 5 400 ₽, 3
:
SQL-
,
.
SQL
:
MS SQL Server 2016
MS SQL Server Management Studio 2016
SQL
SQL
Transact-SQL
JOIN
(VIEW) SQL
INSERT
.
, SQL Server 2000 IT-.
SQL Server, , Microsoft Cluster Services (MSCS), , SQL Server.
, T-SQL, SQL Server , , Microsoft Distributed Transaction Coordinator (MS DTC) SQL Server.
SQL Server .
:
SQL
,
Where, Order Limit
, Group By.
:
Oracle
(select, group by, order by)
Select AND, OR, IN, NOT IN
Select BETWEEN
Select LIKE NOT LIKE
Select NULL
SQL COUNT
SQL SUM, MIN, MAX, AVG
.
:
, SELECT
.
SQL
SQL (Structured Query Language) , . SQL , , , .
SQL
SQL (Structured Query Language) . :
: SQL . SQL , (, , ..).
: SQL , , . SELECT, INSERT, UPDATE DELETE.
: SQL , , . - .
: SQL . , .
: SQL , .
: SQL . .
: SQL , (primary key, foreign key, unique) .
: SQL (data warehouses), .
-: - SQL , .
Big Data Data Science: SQL Big Data Data Science, .
SQL
SQL . , , , , SQL. (Big Data) , SQL, . SQL , :
BI-
, , SQL .
, SQL?
, SQL, , , , . :
( : SELECT, INSERT, UPDATE, DELETE):
: 1-2
: 1-2
( JOIN, , ):
: 3-4
: 2-3
( , , ):
: 2-3
: 6-12
, . , .
SQL?
SQL . :
-: SQL , , -.
: SQL -, .
: (DBA) SQL , .
: SQL , (ETL-), -.
(Data Science): SQL , .
: SQL , .
: SQL , .
: , , SQL , , .
: SQL , .
: SQL , .
SQL , .
SQL?
SQL , :
: (, , ) SQL.
: , .
: .
: , , , .
: (), MySQL, PostgreSQL, Oracle, SQL Server.
: , , .
: , SQL (, , , ), .
: , .
: , Tableau, Power BI Excel, , SQL.
: , SQL , .
SQL, .
SQL . :
:
: - , .
: , .
: .
:
: , SQL, .
: , .
: , .
:
: , .
: , .
:
: , .
: , .
:
, (, LinkedIn).
:
. .
SQL?
Standard SQL (ANSI SQL): , .
T-SQL (Transact-SQL): SQL, Microsoft SQL Server.
PL/SQL (Procedural Language/SQL): SQL Oracle Database, .
MySQL: SQL, , .
SQL?
, . SQL .
SQL ?
, SQL , -, . .
SQL?
SQL Server Management Studio (SSMS): Microsoft SQL Server
phpMyAdmin: MySQL
DBeaver:
pgAdmin: PostgreSQL
DataGrip: IDE JetBrains