I never played with the MySQL syntax so I don't know how to do this right now.
I know in SQL it would be
select top 3 cloumn_name
from table_name
MySQL
select column_name
from table_name
limit 3, 2;
can someone explain how limit works?
Use limit and offset:
select t.*
from table_name t
order by ??
limit 3 offset 1;
When using limit you should generally use order by. In addition, for offset purposes, MySQL starts counting at 0 and not 1.
Related
I am trying to view the first 2 records of a table name Customers which have two columns name Name(varchar) and Salary(text) in MySQL server 6.0
The command which I am using is:
SELECT TOP 2 * FROM customers;
But it's not working.
I recommend you to write statement like this using LIMIT
SELECT * FROM customers [WHERE conditions] [ORDER BY expression [ASC|DESC]] LIMIT 2 ;
Instead of
SELECT TOP 2 * FROM customers;
It's very simple. Just try this
SELECT * FROM customers LIMIT 2;
You can check the manual also.
Use this in case of MySQL:
select * from customers limit 2;
To get any position value in the whole tale I suggest you to use the following query as TOP [position] doesn't work in all versions of MySQL.
select min(column_name) from (select column_name from table_name order by column_name desc limit position_you_sort) any_name_for_table;
I have a mysql Database and I want to get the records starting from row 5 onwards. This is what i am sing right now
SELECT * FROM categories WHERE status = 1
limit 5 18446744073709551615 ORDER BY sortOrder ASC
But it is throwing me an error
Error Executing Database Query.
You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near '18446744073709551615
ORDER BY
sortOrder ' at line 6
Also i am not sure at this point if this is the correct way of doing it or not
Thanks
You require OFFSET
Example:
SELECT something FROM table LIMIT $limit OFFSET $offset;
//or alternatively
SELECT something FROM table LIMIT $offset,$limit;
Regarding your error:
Remove the number - what is it for in the first place?
Your statement should be:
SELECT * FROM categories WHERE status = 1
OFFSET 5 ORDER BY sortOrder ASC
You missed a comma , in your sql query.. just change it to the following:
SELECT * FROM categories WHERE status = 1
limit 5, 18446744073709551615 ORDER BY sortOrder ASC
↑
Explanation: LIMIT with two arguments (comma separated) will take first argument as OFFSET and second as the maximum number of rows to return.
Alternatively, if you just want to get all rows from a particular record.. you can use OFFSET keyword. The following will fetch rows starting from 5th row.
SELECT * FROM categories WHERE status = 1
OFFSET 5 ORDER BY sortOrder ASC
Perhaps You need to just Rearrange the sequence of Instruction.
Make Sure 'sortOrder' column exists in your Categories table.
The Following Query should work,
Select * from Categories Where status =1
ORDER BY sortOrder ASC
Limit 4, 999980090909
If you want to get the rows starting from 5 , then your Limit value should start from 4 and the second value can be some larger number.
Hope this helps you!
Found out this code to give me the lateset created table, but how can I get the one before it?
SELECT TABLE_NAME
FROM information_schema.tables
WHERE table_schema = 'data'
ORDER BY create_time DESC LIMIT 1;
Instead of LIMIT 1, use LIMIT 1,1 this will give your second last created table
Hi could anyone help me with something?
I need a mysql query that can return 4 values from a column in some table, also select all fiels from each row.
something like:
SELECT * FROM dadoslivros WHERE RAND() =1 limit 100;
But i only want the random form row ID.
Thanks.
It seems like you just want to use ORDER BY RAND():
select *
from dadoslivros
order by rand()
limit 100
See SQL Fiddle with Demo
First query is giving fine results but question is about 2nd
When I have given limit 2,2. How two rows can be selected? this is the weied beahaviour query
SELECT Ordinal_Position, Column_Name FROM information_schema.columns WHERE
table_schema = 'accounts' AND table_name = 'chequeout' LIMIT 2 , 2
What is wrong with 2nd query or its sum bug? What could be the solution?
Expected result of second query is a single row with values 2 and Amount
Limit 2, 2 means start at record 2 (the third 0,1,2) and display 2 rows
What you seem to want to do is :
WHERE Ordinal_Position = 2
You're probably a little confused about how to use LIMIT:
LIMIT <offset>,<limit>
<offset> means starting row index and <limit> tells how much rows.