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SQL Tutorial for Beginners
course content

Conteúdo do Curso

SQL Tutorial for Beginners

SQL Tutorial for Beginners

1. Database & Introduction to Syntax
Meet the SQLSelect the Songs!SQL Select ColumnSQL DistinctSQL WhereChallenge WhereSQL And, Or, Not
2. SQL Aggregate Functions
SQL Min and MaxChallenge Min and MaxSQL Count, Sum, AvgChallenge Count
3. Filtering Statements
SQL NullSQL LikeChallenge LikeSQL BetweenSQL Order ByChallenge Order BySQL Group ByChallenge Group BySQL Top and LimitSQL AliasesSQL HavingChallenge HavingSQL Comments

bookSQL 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
copy

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.

Tarefa

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

Switch to desktopMude para o desktop para praticar no mundo realContinue de onde você está usando uma das opções abaixo
Tudo estava claro?

Como podemos melhorá-lo?

Obrigado pelo seu feedback!

Seção 3. Capítulo 9
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bookSQL 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
copy

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.

Tarefa

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

Switch to desktopMude para o desktop para praticar no mundo realContinue de onde você está usando uma das opções abaixo
Tudo estava claro?

Como podemos melhorá-lo?

Obrigado pelo seu feedback!

Seção 3. Capítulo 9
toggle bottom row

bookSQL 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
copy

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.

Tarefa

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

Switch to desktopMude para o desktop para praticar no mundo realContinue de onde você está usando uma das opções abaixo
Tudo estava claro?

Como podemos melhorá-lo?

Obrigado pelo seu feedback!

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
copy

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.

Tarefa

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

Switch to desktopMude para o desktop para praticar no mundo realContinue de onde você está usando uma das opções abaixo
Seção 3. Capítulo 9
Switch to desktopMude para o desktop para praticar no mundo realContinue de onde você está usando uma das opções abaixo
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