
DB-1
Authored by E M
Computers
University
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22 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Kokį duomenų tipą naudosite reliacinėje duomenų bazėje, norėdami išsaugoti skaičius, kurie turi iki 3 skaitmenų po sveikojo skaičiaus (pvz.: 3,005)?
FLOAT
TEXT
VARCHAR
INTEGER
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Kas nurodo žemiausią ir aukščiausią reikšmių intervalą, išrenkant duomenis iš lentelės, esančios DB, t.y. rezultate pateikia duomenis tam tikru intervalu
LIKE
IN
BETWEEN ... AND
AND
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Kokiu žodžiu nurodoma viena ar daugiau rikiavimo sąlygų, kalbant apie DB?
DISTINCT
ARRANGE
ORDER BY
GROUP BY
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Nurodykite, kuris operatorius naudojamas konkretaus šablono paieškai stulpelyje, kalbant apie DB?
FIND
GET
LIKE
FROM
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
kokiu žodžiu pradėsite užklausą, norėdami gauti duomenis iš duomenų bazės
SELECT
FROM
FIND
GET
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Kaip rašysite, norėdami gauti visus įrašus iš "vartotojai" lentelės, kur stulpelio "vardas" reikšmė yra "Jonas" ir stulpelio "pavarde" - "Jonaitis"?
SELECT * FROM vartotojai WHERE vardas='Jonas' AND pavarde='Jonaitis'
SELECT * FROM vartotojai WHERE vardas='Jonas' OR pavarde='Jonaitis'
SELECT vartotojai WHERE vardas='Jonaitis' AND pavarde='Jonas'
SELECT vardas='Jonaitis' OR pavarde='Jonas'
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Sukonstruokite “SELECT * FROM vartotojai” užklausą, kad gautumėte visus surūšiuotus (Ž-A) pagal vardą įrašus "vartotojai" lentelėje
GET BY vardas DESC
ORDER BY vardas ASC
GROUP BY vardas DESC
ORDER BY vardas DESC
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