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SQL Tutorial for Beginners

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SQL Like

The LIKE operator is used with WHERE to search for some pattern in a string.

The pattern is usually some kind of Regular Expression that is built with some rules, but we won't dive deep into it. In the meantime, the following rules are enough for you:

  • % means 0 or more symbols: a% matches a, aa, aaaaa, etc. b%d matches bd, bad, bored, etc.

  • _ matches single symbol. t_ee matches tree, twee etc, and _o%_ match wow, coooow, soap etc., but not so for example.

In this example all singers with the naming of two separate words, both consist of at least one symbol.


              
12

            
SELECT singer FROM songs
WHERE singer LIKE '_% _%'
copy
Oppgave

Swipe to start coding

Select all singers with naming starting with A.

Løsning

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Hvordan kan vi forbedre det?

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Seksjon 3. Kapittel 2
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book
SQL Like

The LIKE operator is used with WHERE to search for some pattern in a string.

The pattern is usually some kind of Regular Expression that is built with some rules, but we won't dive deep into it. In the meantime, the following rules are enough for you:

  • % means 0 or more symbols: a% matches a, aa, aaaaa, etc. b%d matches bd, bad, bored, etc.

  • _ matches single symbol. t_ee matches tree, twee etc, and _o%_ match wow, coooow, soap etc., but not so for example.

In this example all singers with the naming of two separate words, both consist of at least one symbol.


              
12

            
SELECT singer FROM songs
WHERE singer LIKE '_% _%'
copy
Oppgave

Swipe to start coding

Select all singers with naming starting with A.

Løsning

Switch to desktopBytt til skrivebordet for virkelighetspraksisFortsett der du er med et av alternativene nedenfor
Alt var klart?

Hvordan kan vi forbedre det?

Takk for tilbakemeldingene dine!

Seksjon 3. Kapittel 2
Switch to desktopBytt til skrivebordet for virkelighetspraksisFortsett der du er med et av alternativene nedenfor
Vi beklager at noe gikk galt. Hva skjedde?
some-alt