Contenido del Curso

SQL Tutorial for Beginners

1. Database & Introduction to Syntax

Meet the SQL Select the Songs!SQL Select Column SQL Distinct SQL Where Challenge Where SQL And, Or, Not

2. SQL Aggregate Functions

SQL Min and Max Challenge Min and Max SQL Count, Sum, Avg Challenge Count

3. Filtering Statements

SQL Null SQL Like Challenge Like SQL Between SQL Order By Challenge Order By SQL Group By Challenge Group By SQL Top and Limit SQL Aliases SQL Having Challenge Having SQL Comments

SQL Top and Limit

TOP and LIMIT statements determine the amount of records in the result. For example, you want to limit the result with 7 records. In MS SQL and PostgreSQL, use the LIMIT keyword at the end of the query:


              1234
            
--Find top-3 the eldest songs
SELECT title, year FROM songs
ORDER BY year
LIMIT 3

In MySQL syntax, use TOP keyword with select to limit the number of output rows. You can also set a percentage: SELECT TOP 50 PERCENT.

During this course we will use the LIMIT statement.

Tarea

Find 5 first albums and their singers, which are sorted by naming, and return the result. Choose only albums from the 1970s.

Tarea

Find 5 first albums and their singers, which are sorted by naming, and return the result. Choose only albums from the 1970s.

Cambia al escritorio para practicar en el mundo realContinúe desde donde se encuentra utilizando una de las siguientes opciones

¿Todo estuvo claro?

Sección 3. Capítulo 9

SQL Top and Limit


              1234
            
--Find top-3 the eldest songs
SELECT title, year FROM songs
ORDER BY year
LIMIT 3

In MySQL syntax, use TOP keyword with select to limit the number of output rows. You can also set a percentage: SELECT TOP 50 PERCENT.

During this course we will use the LIMIT statement.

Tarea

Find 5 first albums and their singers, which are sorted by naming, and return the result. Choose only albums from the 1970s.

Tarea

Find 5 first albums and their singers, which are sorted by naming, and return the result. Choose only albums from the 1970s.

Cambia al escritorio para practicar en el mundo realContinúe desde donde se encuentra utilizando una de las siguientes opciones

¿Todo estuvo claro?

Sección 3. Capítulo 9

SQL Top and Limit


              1234
            
--Find top-3 the eldest songs
SELECT title, year FROM songs
ORDER BY year
LIMIT 3

In MySQL syntax, use TOP keyword with select to limit the number of output rows. You can also set a percentage: SELECT TOP 50 PERCENT.

During this course we will use the LIMIT statement.

Tarea

Find 5 first albums and their singers, which are sorted by naming, and return the result. Choose only albums from the 1970s.

Tarea

Find 5 first albums and their singers, which are sorted by naming, and return the result. Choose only albums from the 1970s.

Cambia al escritorio para practicar en el mundo realContinúe desde donde se encuentra utilizando una de las siguientes opciones

¿Todo estuvo claro?


              1234
            
--Find top-3 the eldest songs
SELECT title, year FROM songs
ORDER BY year
LIMIT 3

In MySQL syntax, use TOP keyword with select to limit the number of output rows. You can also set a percentage: SELECT TOP 50 PERCENT.

During this course we will use the LIMIT statement.

Tarea

Find 5 first albums and their singers, which are sorted by naming, and return the result. Choose only albums from the 1970s.

Cambia al escritorio para practicar en el mundo realContinúe desde donde se encuentra utilizando una de las siguientes opciones

Sección 3. Capítulo 9

Cambia al escritorio para practicar en el mundo realContinúe desde donde se encuentra utilizando una de las siguientes opciones