The Queries in this page solved at the library database. It is a sample database generated by randomly records. You can download it from the link. You will see more than 500 examples in the future. You can filter from the search panel above by selecting sql statements. I hope you will like it

**Solution 1)**

`Select * from students`

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Select -
**Solution 1)**

`Select * from books`

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Select -
**Solution 1)**

```
Select * from students
where name =
```*'Bill'*

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Select - Where -
**Solution 1)**

```
Select * from students
where name like 'a%'
```

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Select - Where - Like -
**Solution 1)**

```
Select * from students
where name like '%a'
```

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Select - Where - Like -
**Solution 1)**

```
Select * from students
where name like '%a%'
```

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Select - Where - Like -
**Solution 1)**

```
Select * from books
where bookId like '%1%'
```

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Select - Where - Like -
**Solution 1)**

```
Select * from students
where name like '_a%'
```

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Select - Where - Like -
**Solution 1)**

```
Select * from students
where name like '%a_'
```

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Select - Where - Like -
**Solution 1)**

```
Select * from students
where studentId<= 20 and studentId< 30
```

**Solution 2)**

```
Select * from students
where studentId between 20 and 30
```

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Select - Where - Between - Multi Condition -
**Solution 1)**

```
select * from students
where name= 'James' and surname not like '%a%'
```

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Select - Where - Like - Multi Condition -
**Solution 1)**

```
select *from students
where (name='Kane' or name= 'Jane') and studentId <30
```

**Solution 2)**

```
Select * from students
where name='Kane' and studentId <30 or name='Jane' and studentId <30
```

**Solution 3)**

```
select * from students
where name in('Kane','Jane') and studentId<30
```

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Select - Where - Brackets - Multi Condition -
**Solution 1)**

`Select name + surname from students`

**Solution 2)**

`Select name + surname as ns from students`

**Solution 3)**

`Select name + ' ' + surname as ns from students`

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Select - Alias -
**Solution 1)**

```
Select * from books
where bookId in(3,4,8,9,11,23)
```

**Solution 2)**

```
Select * from books
where bookId = 3 or
bookId = 4 or
bookId = 8 or
bookId = 9 or
bookId =11 or
bookId = 23
```

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Select - Where -
**Solution 1)**

```
Select * from books
where bookId % 2 = 0
```

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Select - Where -
**Solution 1)**

```
select * from students
where name = 'Perez' and surname not like '%a%'
```

**Solution 2)**

```
select * from students
where name = 'Perez' and not surname like '%a%'
```

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Select - Where - Multi Condition -
**Solution 1)**

```
select * from students
where ("Edwards" or "Baker") and studentId<30
```

**Solution 2)**

```
select * from students
where name='Edwards' and studentId<30 or
name='Baker' and studentId<30
```

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Select - Where - Brackets - Multi Condition -
**Solution 1)**

```
select * from students
where studentId=1 or studentId=7 or
studentId=11 or studentId=17
```

**Solution 2)**

```
select * from student
where studentId in (1,7,11,17)
```

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Select - Where -
**Solution 1)**

```
Select * from students
where studentId % 2 = 1
```

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Select - Where -
**Solution 1)**

```
Select * from student
where name like 'a%' and studentId % 2 = 1
```

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Select - Where - Multi Condition -
**Solution 1)**

```
Select * from students
order by name
```

**Solution 2)**

```
Select * from students
order by 2
```

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Select - Order By -
**Solution 1)**

```
Select * from students
where gender = 'M'
order by name
```

**Solution 2)**

```
Select * from students
where gender = 'M'
order by 2
```

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Select - Where - Order By -
**Solution 1)**

```
Select * from students
order by name desc
```

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Select - Order By -
**Solution 1)**

```
Select * from students
order by sinif,gender
```

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Select - Order By -
**Solution 1)**

```
Select * from students
order by newid()
```

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Select - Order By -
**Solution 1)**

```
Select * from students
where gender = 'M'
order by newid()
```

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Select - Where - Order By -
**Solution 1)**

```
select * from students
where sinif='10A' and gender='M'
order by newid()
```

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Select - Where - Order By -
**Solution 1)**

```
Select top 3 * from students
order by newid()
```

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Select - Top - Order By -
**Solution 1)**

```
Select top 1 * from students
where sinif= '10A'
order by newid()
```

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Select - Top - Where - Order By -
**Solution 1)**

```
Select top 1 * from students
where sinif= '10A' and gender= 'F'
order by newid()
```

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Select - Top - Where - Order By - Multi Condition -
**Solution 1)**

```
Select top 1 * from books
order by sayfaSayisi desc
```

**Solution 2)**

```
Select * from books
where sayafaSayisi=(Select max(sayfaSayisi) from books)
```

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Select - Top - Where - Order By - Sub Query - Aggragate -
**Solution 1)**

```
Select * from students
order by birthdate
```

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Select - Order By -
**Solution 1)**

```
Insert into students(name,surname)
Select name,surname from authors
```

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Select - Insert -
**Solution 1)**

```
Insert into authors(name,surname)
select name,surname from students
where sinif='9A' and gender='M'
```

**Solution 2)**

```
Insert into authors
select name,surname from students
where sinif='9A' and gender='M'
```

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Select - Insert - Where -
**Solution 1)**

```
Select name,surname,takenDate from students,borrows
where students.studentId = borrows.studentId
```

**Solution 2)**

```
Select name,surname,takenDate from students
join borrows on students.studentId = borrows.studentId
```

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Select - Join - Where - Çoklu Tablo -
**Solution 1)**

```
Select students.name,students.surname,books.name,takenDate
from students,borrows,books
where students.studentId = borrows.studentId and
books.bookId = borrows.bookId
```

**Solution 2)**

```
Select students.name,students.surname,books.name,takenDate from students
join borrows on students.studentId = borrows.studentId
join books on books.bookId = borrows.bookId
```

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Select - Join - Where - Çoklu Tablo -
**Solution 1)**

```
Select students.name as OgrenciAd,
students.surname,books.name as KitapAd,
takenDate,types.name as TurAd
from students,borrows,books,types
where students.studentId = borrows.studentId and
books.bookId = borrows.bookId and
books.typeId = types.typeId
```

**Solution 2)**

```
Select students.name as studentName,
students.surname,books.name as BookName,
takenDate,types.name as TypeName
from students
join borrows on students.studentId = borrows.studentId
join books on books.bookId = borrows.bookId
join types on books.typeId = types.typeId
```

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Select - Join - Where - Çoklu Tablo -
**Solution 1)**

```
Select students.name as studentName,
students.surname,books.name as BookName,
takenDate,types.name as TypeName,
authors.name as AuthorName, authors.surname as AuthorSurname
from students
join borrows on students.studentId = borrows.studentId
join books on books.bookId = borrows.bookId
join types on books.typeId = types.typeId
join authors on authors.authorId = books.authorId
```

**Solution 2)**

```
Select students.name as studentName,students.surname,
books.name as BookName,takenDate,types.name as TypeName ,
authors.name as AuthorName,authors.surname as AuthorSurname
from students, borrows, books, types, authors
where students.studentId = borrows.studentId and
books.bookId = borrows.bookId and
books.typeId = types.typeId and
authors.authorId = books.authorId
```

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Select - Join - Where - Çoklu Tablo -
**Solution 1)**

```
Select students.name as studentName,students.surname,
books.name as BookName,takenDate
from students,borrows,books,types,authors
where students.studentId = borrows.studentId and
books.bookId = borrows.bookId and sinif='11B'
```

**Solution 2)**

```
Select students.name as studentName,students.surname,
books.name as BookName,takenDate
from students
join borrows on students.studentId = borrows.studentId
join books on books.bookId = borrows.bookId
where sinif='11B'
```

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Select - Join - Where - Çoklu Tablo -
**Solution 1)**

```
Select students.name as studentName,students.surname,
books.name as BookName,takenDate
from students, borrows, books, types, authors
where students.studentId = borrows.studentId and
books.bookId = borrows.bookId and
sinif='11B' and gender='F'
```

**Solution 2)**

```
Select students.name as studentName,students.surname,
books.name as BookName,takenDate
from students
join borrows on students.studentId = borrows.studentId
join books on books.bookId = borrows.bookId
where sinif='11B' and gender='F'
```

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Select - Join - Where - Multi Condition - Çoklu Tablo -
**Solution 1)**

```
Select authors.name, authors.surname, books.name as bookName from authors
join books on authors.authorId = books.authorId
join types on types.typeId = books.typeId
where types.name = 'Drama'
```

**Solution 2)**

```
Select authors.name, authors.surname, books.name as bookName
from authors, books, types
where authors.authorId = books.authorId and
types.typeId = books.typeId and
types.name = 'Drama'
```

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Select - Join - Where - Multi Condition - Çoklu Tablo -
**Solution 1)**

```
Select books.name as bookName, authors.name, authors.surname
from authors
join books on authors.authorId = books.authorId
where pagecount >300
```

**Solution 2)**

```
Select authors.name, authors.surname, books.name as bookName
from authors,books
where authors.authorId = books.authorId and pagecount >300
```

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Select - Join - Where - Multi Condition - Çoklu Tablo -
**Solution 1)**

```
Select distinct students.* from students
join borrows on students.studentId = borrows.studentId
join books on books.bookId = borrows.bookId
join authors on authors.authorId = books.authorId
where authors.name = 'Isaac' and authors.surname = 'Asimov'
```

**Solution 2)**

```
Select distinct students.*
from students, borrows, books, authors
where students.studentId = borrows.studentId and
books.bookId = borrows.bookId and
authors.authorId = books.authorId and
authors.name = 'Isaac' and authors.surname = 'Asimov'
```

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Select - Join - Where - Multi Condition - Çoklu Tablo -
**Solution 1)**

```
Select distinct students.* from students
join borrows on students.studentId = borrows.studentId
join books on books.bookId = borrows.bookId
join authors on authors.authorId = books.authorId
where authors.name = 'Fyodor' and authors.surname = 'Dostoevsky' and sinif = '10A'
```

**Solution 2)**

```
Select distinct students.*
from students, borrows, books, authors
where students.studentId = borrows.studentId and
books.bookId = borrows.bookId and
authors.authorId = books.authorId and
authors.name = 'Fyodor' and authors.surname = 'Dostoevsky' and
sinif = '10A'
```

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Select - Join - Where - Multi Condition - Sub Query - Çoklu Tablo -
**Solution 1)**

`Select count(*) from books`

**Solution 2)**

`Select count(bookId) from books`

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Select - Aggragate -
**Solution 1)**

`Select count(*) from students`

**Solution 2)**

`Select count(studentId) from students`

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Select - Aggragate -
**Solution 1)**

`Select sum(pageCount) from books`

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Select - Aggragate -
**Solution 1)**

`Select sum(point) from students`

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Select - Aggragate -
**Solution 1)**

`Select avg(point) from students`

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Select - Aggragate -
**Solution 1)**

`Select min(pageCount) from books`

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Select - Aggragate -
**Solution 1)**

`Select max(point) from books`

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Select - Aggragate -
**Solution 1)**

`Select avg(pageCount) from books`

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Select - Aggragate -
**Solution 1)**

```
Select count(*) from students
where sinif = '9B'
```

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Select - Where - Aggragate -
**Solution 1)**

```
Select sum(pageCount) from books
join types on types.typeId = books.typeId
where types.name = 'Romance'
```

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Select - Join - Where - Aggragate - Çoklu Tablo -
**Solution 1)**

```
Select count(*) from books
join types on types.typeId = books.typeId
where types.name = 'Horror'
```

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Select - Join - Where - Aggragate - Çoklu Tablo -
**Solution 1)**

```
Select avg(pageCount) from books
join types on types.typeId = books.typeId
where types.name = 'Comics'
```

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Select - Join - Where - Aggragate - Çoklu Tablo -
**Solution 1)**

```
Select sum(pageCount) from books
join authors on authors.authorId = books.authorId
where authors.name = 'John' and authors.surname = 'DosPassos'
```

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Select - Join - Where - Aggragate - Çoklu Tablo -
**Solution 1)**

```
Select sum(point) from books
join authors on authors.authorId = books.authorId
where authors.name = 'Emily' and authors.surname = 'Dickinson'
```

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Select - Join - Where - Multi Condition - Aggragate - Çoklu Tablo -
**Solution 1)**

```
Select count(*) from books
join authors on authors.authorId = books.authorId
where authors.name = 'Edna' and authors.surname = 'Ferber'
```

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Select - Join - Where - Multi Condition - Aggragate - Çoklu Tablo -
**Solution 1)**

```
Select count(*) from students
join borrows on students.studentId = borrows.studentId
where students.name = 'Alice' and students.surname = 'Wood'
```

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Select - Join - Where - Multi Condition - Aggragate - Çoklu Tablo -
**Solution 1)**

```
Select sum(pageCount) from students
join borrows on students.studentId = borrows.studentId
join books on books.bookId = borrows.bookId
where students.name = 'Ainsley' and students.surname = 'Cooper'
```

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Select - Join - Where - Multi Condition - Aggragate - Çoklu Tablo -
**Solution 1)**

```
Select count(distinct authorId) from students
join borrows on students.studentId = borrows.studentId
join books on books.bookId = borrows.bookId
where students.name = 'Ida' and students.surname = 'Gray'
```

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Select - Distinct - Join - Where - Multi Condition - Aggragate - Çoklu Tablo -
**Solution 1)**

```
Insert into authors(name,surname)
Select top 5 name,surname from students order by newid()
```

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Select - Insert - Top - Order By -
**Solution 1)**

```
Insert into students(name,surname,sinif)
Select name,surname,'12M' from authors where name like '%a%'
```

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Select - Insert - Where -
**Solution 1)**

```
Select top 1 students.*,takendate
from students,borrows
where students.studentId = borrows.studentId
order by borrows.takenDate desc
```

**Solution 2)**

```
Select top 1 students.*,takendate
from students
join borrows on students.studentId = borrows.studentId
order by borrows.takenDate desc
```

**Solution 3)**

```
Select students.*,takendate
from students
join borrows on students.studentId = borrows.studentId
where takenDate = (Select max(takenDate) from borrows)
```

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Select - Top - Join - Where - Order By - Sub Query - Çoklu Tablo -
**Solution 1)**

```
Select sinif,count(*) as StudentCount
from students
group by sinif
```

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Select - Group By - Aggragate -
**Solution 1)**

```
Select gender,count(*) as StudentCount
from students
group by gender
```

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Select - Group By - Aggragate - Alias -
**Solution 1)**

```
Select sinif,gender,count(*) as StudentCount
from students
group by gender,sinif
```

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Select - Group By - Aggragate - Alias -
**Solution 1)**

```
Select sinif,gender,count(*) as StudentCount
from students
where gender = 'F'
group by gender,sinif
```

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Select - Where - Group By - Aggragate - Alias -
**Solution 1)**

```
Select sinif,count(*) as StudentCount
from students
group by sinif
having count(*) >= 30
```

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Select - Group By - Having - Alias -
**Solution 1)**

```
Select name,surname,count(*) BookCount
from students,borrows
where students.studentId = borrows.studentId
group by students.studentId,name,surname
```

**Solution 2)**

```
Select name,surname,count(*) BookCount
from students
join borrows on students.studentId = borrows.studentId
group by students.studentId,name,surname
```

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Select - Join - Where - Group By - Aggragate - Alias - Çoklu Tablo -
**Solution 1)**

```
Select name,surname,count(*) BookCount
from students
join borrows on students.studentId = borrows.studentId
group by students.studentId,name,surname
order by BookCount desc
```

**Solution 2)**

```
Select name,surname,count(*) BookCount
from students,borrows
where students.studentId = borrows.studentId
group by students.studentId,name,surname
order by BookCount desc
```

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Select - Join - Where - Group By - Order By - Aggragate - Alias - Çoklu Tablo -
**Solution 1)**

```
Select name,surname,count(borrowsno) BookCount
from students
left join borrows on students.studentId = borrows.studentId
group by students.studentId,name,surname
order by BookCount
```

**Solution 2)**

```
Select name, surname,
(Select count(*) from borrows
where students.studentId = borrows.studentId) as BookCount
from students
order by BookCount
```

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Select - Top - Where - Having - Sub Query -
**Solution 1)**

```
Select Year(takendate) as Year, datepart(qq,takendate) as Quarter,count(*) as Count
from borrows
group by Year(takendate),datepart(qq,takendate)
```

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Select - Group By - SQL Functions -
**Solution 1)**

```
Select Year(birthdate) as Year, datepart(qq,birthdate) as Quarter,count(*) as Count
from students
group by Year(birthdate),datepart(qq,birthdate)
```

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Select - Group By - SQL Functions - Alias -
**Solution 1)**

```
Select students.* from students
left join borrows on students.studentId = borrows.studentId
where borrowsno is null
```

**Solution 2)**

```
Select * from students
where studentId not in
(Select studentId from borrows)
```

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Select - Where - Sub Query - Çoklu Tablo - Left Join -
**Solution 1)**

```
Select books.* from books
left join borrows on books.bookId = borrows.bookId
where borrowsno is null
```

**Solution 2)**

```
Select * from books
where bookId not in
(Select bookId from borrows)
```

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Select - Where - Sub Query - Çoklu Tablo - Left Join -
**Solution 1)**

```
Create procedure randomGenerate(@unit int,@min int,@max int)
as
Begin
Declare @numbers table(number int)
Declare @i int = 0
Declare @number int
while (@i<@unit)
Begin
Set @number = floor(rand()*(@max-@min+1))+@min
if(not exists(Select * from @numbers where number = @number))
begin
insert into @numbers values(@number)
Set @i = @i + 1
end
end
Select * from @numbers order by 1
End
--To Execute Stored Procedure
Execute randomGenerate 5,20,30
```

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Select - Insert - Procedure - Declare -
**Solution 1)**

`Select distinct name from students`

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Select - Distinct -
**Solution 1)**

`Select distinct class from students`

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Select - Distinct -
**Solution 1)**

`Select distinct name, surname from students`

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Select - Distinct -
**Solution 1)**

`Select top 5 * from students`

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Select - Top -
**Solution 1)**

`Select top 10 * from authors`

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Select - Top -
**Solution 1)**

`Select distinct top 5 name from students`

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Select - Top - Distinct -
**Solution 1)**

`Select distinct top 3 name from books`

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Select - Top - Distinct -Library Database