SQL 3 LOWER()
Quiz
•
Computers
•
Professional Development
•
Practice Problem
•
Easy
Jolita Kuncienė
Used 6+ times
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10 questions
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1.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
SQL funkcija, sujungianti kelias simbolių eilutes, reikšmes.
LOWER()
TRIM()
REPLACE()
CONCAT()
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Kaip SQL iš DATATIME formato stulpelio, grąžintum metai-mėnuo-diena?
naudočiau ROUND(return_date)
naudočiau DATE(stulpelis)
naudočiau MAX(return_date)
naudočiau REPLACE(return_date)
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Suapvalinti reikšmę iki sveikųjų skaičių naudotum
LOCATE('@', email)
UPPER(address.address)
round(amount, 0)
substring(first_name, 1, 1)
4.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Kokį duomenų tipą naudotum "email" stulpeliui sukurti, aprašyti?
Sveiki skaičiai: (pvz.: INT)
Tekstas (pvz.: CHAR, VARCHAR)
Data ir laikas (pvz: DATE)
FLOAT(X,Y)
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
CHAR vs VARCHAR
VARCHAR yra kintamo ilgio, o CHAR yra fiksuoto ilgio
VARCHAR yra fiksuoto ilgio, o CHAR yra kintamo ilgio
CHAR() užimtų 3 baitus
VARCHAR(100) užima 100 baitų diske
6.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Kokia reikšmė teisinga šia stulpeliui - SKELBIMO_KAINA float(10,2) ?
120
120,25
120, 245
100
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Kokius žinote datos formatus?
VARCHAR(size), CHAR(size)
INT(size), SMALLINT(size)
DATE, TIME, DATETIME, TIMESTAMP
FLOAT(size, d), DOUBLE(size, d)
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