SQL (Lenguaje Estructurado de Consulta)

Honelako gehiago

Geography

by Ashwin Baindur

Pathway to Confederation

by Labeeque Hanif

Advanced VIP’s of the Civil War

by Chase Hensley

Civil war poeple

by Benjamin Ta

SQL (Lenguaje Estructurado de Consulta)

Consultas a Múltiples Tablas

FULL JOIN

RIGHT JOIN

LEFT JOIN

INNER JOIN

Subconsultas

Correlacionadas

Anidadas

WHERE, HAVING, FROM

Operaciones sobre Conjuntos

EXCEPT

INTERSECT

UNION vs. UNION ALL

Funciones y Operadores

Operadores

Comparación

=, !=, <, >, <=, >=

Lógicos

AND, OR, NOT

Aritméticos

+, -, * , /, %

Funciones de fecha

DATE_FORMAT()

DATE_ADD()

NOW()

Funciones de cadena

SUBSTRING()

LENGTH()

CONCAT()

Funciones de agregación

MAX()

MIN()

COUNT()

AVG()

SUM()

Sentencias SQL

TCL (Transaction Control Language)

SAVEPOINT

ROLLBACK

COMMIT

DCL (Data Control Language)

REVOKE

GRANT

DDL (Data Definition Language)

CREATE INDEX

DROP TABLE

ALTER TABLE

CREATE TABLE

DML (Data Manipulation Language)

DELETE

UPDATE

INSERT

SELECT