MYSQL :: Select , Count(*) In MySQL

Php, Mysql And Select Count
I use as the base an existing system, called PHPNuke. My programming work before are only on Assembler, C, C++, Perl and other Databases than MySQL. In PHPNuke and/or the MySQL Queries contained in it there are sequences for simple counting rows (without further processing). The following sequence is permanently used (as example):

$result = $db->sql_query("select * from "$prefix."_sometable where someting='$foo'");
$numrows = $db->sql_numrows($result);

I would make it rather in such a way:

$result = $db->sql_query("select count(*) as count1 from "$prefix."_sometable where someting='$foo'");
$numrows = intval($db->sql_fetchrow($result['count1']));

Now my hopefully not too stupid question. Is there a reason, why e.g. in MySQL large genuine result quantities must be formed, only in order number of lines to determine? I worked so far actually only with other databases. But it is quite possible that that makes any sense here - who knows? Knows here someone the mystery solution?

Count(*) In A Select Returns "1". It Should Behave Like Select Count(*)
i'm trying to make a query work properly but I got lost:

SELECT *,count(*)
FROM cancons c, musics m, discos d, r_discos_cancons rdc
WHERE c.c_id_music = m.m_id
AND rdc.rdc_id_disc = d.d_id
AND d.d_id_music = m.m_id
AND m.m_id = 24
GROUP BY c_id

note:
cancons (ca) = songs (en)
discos (ca) = cd's (en)
music (ca) = musician (en)

don't worry for the WHERE part. i need it because of the foreign keys.
this query returns a table with the title of the song and some more data. on the right side, I get another column called "count(c_id)" with the number "1" in it for each row. That's supposed to be due to the "group by" clause, I think.

I'd like to get the table with the songs, as usual, and, with the same query, I'd like to get the total number of rows selected.

Select Count(*) Problem In Mysql Ver. 4.1
Difference mysql 4.0 and 4.1
My code:

strSelKoresOczek = "SELECT COUNT(*) il_Oczek";
+ " FROM dekretacje d";
+ " left join dekret_realiz dr on d.dekr_id=dr.dekr_id";
+ " left join rejestr_glowny rg on d.prej_id=rg.prej_id";
+ " left join jorg_slownik on
d.jorg_id=jorg_slownik.jorg_id";
+ " WHERE d.symb_rej='RKP' and d.p_rodz='Z'";
+ " and d.dekr_uzytk_id="+ALLTRIM(STR(giUzytkID));
+ " and d.data_czas_dekrwyc is null";
+ " and dr.dekr_id is null"

ok_wyk = SQLEXEC(gnConnHandle,strSelKoresOczek,"cur_sel_koresoczek")

In mysql control center select count(*) return value bigint(21)
Visual fox pro 8 In version 4.0.18 cur_sel_koresoczek.il_oczek is type
Numeric Visual fox pro 8 In version 4.1.16 cur_sel_koresoczek.il_oczek is type Char.

SELECT COUNT(*) Or SELECT .. LIMIT 1?
If the purpose of a query is to see if atleast 1 record exists which would be faster?

SELECT COUNT(*) or SELECT .. LIMIT 1?

Both would use a WHERE clause.

How To Select Count(*) And Something Else?
How do you select a count and another field without having to do two queries?

here's the query I'm using:-

SELECT
count(*) as totals, user

FROM user_posts
WHERE post='$md5'

SELECT COUNT
I'm counting rows from a mysql database able and trying to display the count. I have the following.

$count = "SELECT COUNT(*) AS newcount FROM stores";
$cr = mysql_query($count);
if (!$cr)
die(mysql_error());
if($cr){
//Make site ID now ...
$var1 = $newcount;
$var2 = P00;
$var3 = $var2.$var1;
}

The problem I have is thet $newcount seems to be empty. I have used count and not put "AS newcount" in the query but that made no difference. I have tried to echo the $newcount but again it is empty. Now, in PHP is there something else I must do to return the value of $newcount that I have missed?

SELECT Count
how to use SELECT Count.

Select *, Count
I want to perform a select query, but it doesnt return the data i have in mind. The result should be all info in 1 row with the highest date plus a total of game_id
This is what works best sofar.

SELECT * , COUNT( game_id )
FROM `battle`
WHERE game_id =4
GROUP BY game_id
ORDER BY b_date DESC
LIMIT 1

Yet this doesnt return the last date but the first. Everything else i tried the count function returned 1 even though it should be 20 for example.
How can i solve this?

SELECT COUNT(*)
I heard SELECT COUNT(*) can take a lot of resources if your counting a table with lots and lots of rows (hundred thousands, millions).
What if you add A WHERE clause to it? So something like:
SELECT COUNT(*) FROM table WHERE pid = ?
(pid is a index too btw)
IF adding a where clause, does it still scan the entire million plus rows, or only scans what is returned from the WHERE clause?

SELECT COUNT Or SUM()
Is there a difference between these two functions when your trying to gather how much a item appears in a database?
For example, which one will be better for a database w/ ~150,000 rows.

SELECT COUNT(category_id) FROM Threads WHERE category_id = '2'

Will return ~50,000 rows matching category 2

OR

SELECT SUM(category_id = '2') AS total FROM Threads
total will be ~50,000 rows also.

Select Count
I need to do the follow SQL..PHP Code:

SELECT COUNT(t.id), COUNT(p.id) FROM threads t, posts p

and add the two counts together... within the SQL query can i do this?
or do i just have to return the arrays and added the results seperatly.

Select Count Where Entries Are < 4
I want to count how many users have 4 or less entries in the table, so, so far i have
SQL
SELECT COUNT (*) AS fourLOCS FROM
(SELECT DISTINCT locsLog.locStudentID FROM locsLog)
which counts all the entries in the locsLog table and groups them by studentID so tells me how many users have made entries.
How do I limit this so it only gives me a total number of users who have made 4 or less entries. I think I'd need WHERE after the nested SELECT statement, but I don't know what I'd put in it. I tried
SQL
SELECT COUNT (*) AS fourLOCS FROM
(SELECT DISTINCT locsLog.locStudentID FROM locsLog)
WHERE fourLOCS <= 4
but had an error message (I'm doing it with an Access database with ASP and the message was 'Too few parameters. Expected 1').

Select Count(*) Timing Out
I'm doing a "select count(*) from table1" and it takes forever, more then 3 minutes, for the result to come back. I'm running MySQL 5.0.19 on RedHat, I know my table has 51M records. When I run a "show table status where name='table1';" it returns the results in a few ms and gives me a record count. My table is defined below, I've tried forcing use of each index individually and forcing no indexes and all combinations and always the same result. Server is an intel based 64bit cpu with 16GB ram with pretty much nothing else going on......

Select Count(*) Issue
I have what I think is a simple SQL command getting unexpected results.

PHP code:

$query = "select count(*) as total_rows from part_master where mfg_id = '933' and part_no = '3601' order by part_no";

$result = mysql_query($query);

The result is total_rows = 0.

I run the same SQL from the DOS command window and get:

mysql> select count(*) as total_rows from part_master where mfg_id >= '933' and
part_no = '3601' order by part_no;
+------------+
| total_rows |
+------------+
| 1 |
+------------+
1 row in set (0.01 sec)

I'm running the latest versions of Apache, MySQL and PHP on a WinXP box.

SELECT COUNT (*) FROM Table
Newbie: SELECT COUNT (*) FROM table

When I run the above query from the command line, it works
fine.

When I run it from my powerbasic program, I can't seem
to get a reasonsible result.

What type of result does count return?
I get something that looks like this:
[ CHR$(133) ][ CHR$(21) ][ CH...

and the type is given as -5...

What is this type?

SQL - Select Where Count Equals Zero
I have a table of products and a table of ratings so people can rate the products. I would like to select all the products the user has not rated. My thoughts are to join and count returning rows where count equals zero. But I am just not sure how to do it.

I have this that does the exact opposite of what I need, this returns just the row that I rated, I need all but the rows I rated, Make sense?

SELECT products.*, COUNT(ratings.id) AS count FROM products
LEFT JOIN ratings ON ratings.rateable_id=products.id
WHERE ratings.user_id = 10
GROUP BY products.id

(10 is the hard coded user id)

How can return ALL except the rows I rated?

Select Count(*) > @foobar
i have a query as follows and is unsure whether it is mysql or php:

$result = mysqli_query("SELECT COUNT(*) > @foobar AS status ....") where
it's suppose to get a one row value of either '0' or '1' (false or true)

if i were to do a SELECT COUNT(*) FROM...
i can use the php $row["COUNT(*)"] to refer to the index.

if i were to do a SELECT COUNT(*) AS status FROM...
i can use the php $row["status"] to refer to the index.

but in this case SELECT count > @foobar AS status,
refering to $row["status"] gives a empty value. however, running the
same query in mysql command prompt produces

+------+
|status|
+------+
| 1 |
+------+

php doesn't support such select statement? even array_keys($row) returns
empty.

Select COUNT(Name) Into PCount
i wanna count the total number of records by using this sql query...
Select COUNT(Name) into pcount from agent where agentcode = 'abc123';

this return me the total number of all records...

but when use this query:

Select COUNT(Name) into pcount from agent where Name = 'goh';

it return me the correct result....

may i know what is the problem and how can i solve it ??

Select Count Problem
I have two queries that I want to combine.

select Count(flag) as Good
from table
where
flag = 'G'
Group by Fruit

select Count(flag) as Bad
from table
where
flag = 'B'
Group by Fruit

COUNT (*) Inside Select
I am doing something wrong i would like to do a count inside this select for example:

SELECT th.tid, th.tname, th.tmain
(SELECT COUNT(*) as postnumber FROM forumpost AS post WHERE post.ptid=th.tid)
FROM thread as th WHERE tmain=1

Select Statement With Count
I want to know how many different etries there are in one column. My table: pics{id, pic_name,category} There are many pics inside, but only a few different categories, e.g. (outside, inside, garden). Now I need a Select count on this column, and for the example above the result shoud be "3" - 3 different categories

"SELECT DISTINCT COUNT(category) FROM pics"
delivers a much higher number, it counts all rows of the table.

Slow Select Count(*)
I have a table with 75,000 rows.

An Explain tablename shows this

'TourPartsID', 'int(10) unsigned', 'NO', 'PRI', '', 'auto_increment'
'TourPartID', 'int(10) unsigned', 'NO', 'MUL', '', ''
'TourPartTypeID', 'int(10) unsigned', 'NO', 'MUL', '0', ''
'Language', 'int(10) unsigned', 'NO', '', '0', ''
'XML', 'mediumblob', 'NO', '', '', ''

When I do a Select count(*) from table, it takes about 12secs to return my number. This is occuring in the QueryBrowser and from the .NET library when it calls the Stored Procedure that does the Select count(*)....

My only quess that is my last column is a MEDBLOB but since I am NOT indexing that, I would figure MySQL ignores it.

Select Count Syntax
im just a begginer in mysql. I have a problem on how can i place a result of a select statement query in a variable.
Here my select statement:
Select count(employee) from employee where empmonth =
1 and empyear = 2005;
This syntax is ok, it return a result of 123894 records. But what I want is to place the result in one variable that i can access inside the program so that i will run this select statement only once. I have tried this one syntax:
Select count(employee) into ll_count from employee
where empmonth = 1 and empyear = 2005;
but it return a result of zero record.

Two Table COUNT/select
I need to count the total (using SUM) from one column in one table, where the a condition is set from another table.
so far I've been striking out with this:
Code:

SELECT maxbid SUM(maxbid) FROM `probid_auctions` WHERE probid_categories.parent = 1853

Select From Table And Count Results In Another
I have to tables table one containing airports and table two containg bookings. What I need to be able to do is count how many rows are returned form the booking table that matches each airport in the airport table.

So I might have in my airport table
Newcastle
Heathrow
Standstead
etc etc

and in my bookings table I have

Newcastle
Newcastle
Standstead
Heathrow
Heathrow

And what I want returned is
Newcastle(2)
Standstead(1)
Heathrow(3)

How can I go about doing this.

Select Query With Character Count
can you help me with creating a select query where the character count in a specific column is more than, say, 20 characters?

Doing A Select Statement With An Array To Get A Count
I posted this in the php forum and it was suggested I try it in the MySQL area instead. Sorry if this gets posted more than once.

So here is my problem. I have a series of mysql queries to allow users to set filters for the data that is returned. They are searching for clients (Site_ID) with projects (Request_ID). A single client can have multiple projects. I want to be able to count the number of projects that are returned from a query. Here is the tail end of that code...

Multiple COUNT() In SELECT Statement
SELECT
COUNT(s01_Products.id)
FROM
s01_Products
LEFT JOIN
s01_Attributes
ON
s01_Attributes.product_id = s01_Products.id
LEFT JOIN
s01_Options
ON
s01_Options.attr_id = s01_Attributes.id
WHERE
(
s01_Products.active = 1
) AND (
(
LEFT(s01_Options.prompt,5) = "Small"
) OR (
LEFT(s01_Options.prompt,2) IN (28,30)
)
)

SELECT
COUNT(s01_Products.id)
FROM
s01_Products
LEFT JOIN
s01_Attributes
ON
s01_Attributes.product_id = s01_Products.id
LEFT JOIN
s01_Options
ON
s01_Options.attr_id = s01_Attributes.id
WHERE
(
s01_Products.active = 1
) AND (
(
LEFT(s01_Options.prompt,6) = "Medium"
) OR (
LEFT(s01_Options.prompt,2) IN (32)
)
)
And one for Large and Extra Large...

I would obviously like to combine all 4 queries in to 1 so that I can get my 4 counts in a single,

SELECT COUNT Syntax Error
Have a syntax error with the following query ...
SELECT number COUNT(*) AS vessels FROM process_fleet WHERE uid=1
No idea what is wrong with the sytax... can only one see what I'm missing?

Question About Select Count(*) With Group By
suppose a hypothetical table called 'table' with one field called 'field' of
an arbitrary type.

select count(*) from table where field='value' group by field

produces no rows when run under the latest mysql. without "group by" it
produces 1 row.

is this according to the SQL standard or is this just a coincidence? in
other words, can i rely on this behaviour to deduce that there are no fields
with value 'value' in 'table'?

Select Count From A List Of Digits ??
I'm using php to extract data from postgres and print to browser. I have data that was input through checkboxes on a form - each checkbox had a different value but got pushed into the same column. Code:

SELECT Sentece Choosing The Row With The MAX COUNT
i need to make a sentences that selects the row with the biggest count. goes something like this i make the COUNT of a column then i want to show only the biggest result.

Trying To Select Values From Column And Count Each Different One
say my column values are thus:

1 | 1
1 | 2
1 | 3
1 | 4
2 | 1
2 | 2
2 | 3
3 | 1
3 | 2

my select is like this:

my $sth = $dbh->prepare("SELECT session_id, col2
From $table
");
$sth->execute;

while ( my @fields = $sth->fetchrow_array) {
print qq( $fields[0] );
}

I want to be able to show that there are three individual values (in col1) and that there are 9 values in col 2. I also need to show that (based on the number of values in col2 [relative to col 1]), that the average number is 3

Should I use select using UNIQUE (or some other value), or, should I select as shown but put it in a perl hash - or soemthing else?

Non-Numeric Result From SELECT COUNT(*)
I'm using MySQL 4.1.11 and MyODBC 3.51.11.
I've a problem with SELECT COUNT(*) query.

I'm using mysql in ASP. I'm executing this query for example:

Select Count(*) as TotalMembers From Members; //with recordset("Totalmembers")
-- or --
Select Count(*) From Members; // with recordset(0)

but both of these queries aren't giving Numeric (Integer) results...
I'm cotrolling them with IsNumeric function by ASP. But it gives False result.

Also i cannot using mathematical operators such like +-*/ . Because result isn't numeric. And an error occurs.

If you know asp, could you try to use math operators with select count(*) result?

Select Count(*) Showing -1 Rows.
In one of my preliminary tests with mysql, the below statement is showing the following way. What does -1 rows signify in the table with the select count(*) query. Is this (-1 rows in the query result) an error condition to be taken care ?.

bash-2.03# ./mysql -u test
Welcome to the MySQL monitor. Commands end with ; or g.
Your MySQL connection id is 8 to server version: 5.0.18-max

Type 'help;' or 'h' for help. Type 'c' to clear the buffer.

mysql> use test
Reading table information for completion of table and column names
You can turn off this feature to get a quicker startup with -A Code:

Select Count From Multiple Tables
I want to select persons from a person table, and count from an "events", "trainings", and "leads" table, but I'm not able to figure out how to select distinct so that I get one person each and a count for how many times that person appears in each other table. My statement looks like this right now:

SELECT person.name, count(leads.lead_id), count(events.event_id), count(trainings.training_id) FROM person LEFT JOIN leads ON leads.person_id=person.person_id LEFT JOIN eligible ON eligible.person_id=person.person_id LEFT JOIN events ON events.event_id=eligible.event_id LEFT JOIN trainings ON trainings.event_id=events.event_id GROUP BY leads.lead_id, events.event_id, trainings.training_id

Is it even possible to do what I want?

SELECT Count(xxx) AS Xxx Does Not Return Integer
i'm using the latest downloaded version of MySQL and am currently producing an app that is compatible with MySQL, MS Access and SQL 2000/2005, i've not really come across any problems making the app run across the 3 platforms (except for Access's wierd date syntax and MySQL's lack of a boolean field) but the followin is doing my head in:

If i run a count query such as

SELECT Count(CategoryID) AS CountCats FROM MyDownloads etc etc
CountCat = (Downloads.Fields.Item("CountCats").Value)

And then run an IF statement in my page code such as:

<% If CountCat = 0 Then .... %>

This works fine in Access and SQL as the Count value is seen as an integer, but in MySQL this chucks an error unless the code reads

<% If CountCat = "0" Then .... %>

Why is the count value not returned as an integer????? I cant understand that at all, what else could it be? I've seen another post on the forum along the same lines but with no answer to it.

This is grim as every page that uses a count needs to have an additional IF statement put on it to change the second IF statement if the database is detected as MySQL.

Trying To Add A Select Count To Working Sql Statement
I am trying to add a select count inside this sql statement, but i get this error: any ideas?

CODEMicrosoft OLE DB Provider for ODBC Drivers error '80040e31'

Operand should contain 1 column(s)

Select Count From Multiple Tables
i have two tables (providers and clients). Whenever I have a new user create an account, I want to check the count of each, and if it is 0, then the account can be created, otherwise they will get prompted for a new one.
What is the syntax for this? I was trying to do a select count(*) from table1, table2 where username=x, and for some reason it gives me a 5, even though there is only 1 entry.

Count Or Select Only The Populated Rows In A Column?
I'm trying to COUNT the number of populated rows within a column named, 'column_03', but first instead of using COUNT i'm using SELECT to see where the numbers are coming from.
lets say i use the following code...

SELECT column_03
FROM table_name
WHERE table_name.column_01 = 'IN''
AND table.name.column_02 ='GENER"

the result is a total number of 10 records. i can see that 'column_03' has 6 rows that are populated and 4 rows are empty. now what i want to do is select only the 6 rows that are popluated, once i now how to do that i can then use COUNT. Any suggestions?

Select / Count Not Showing Records ... Permissions?
I imported 600,000 records from SQL Server 2005 to mySQL.

I know they are in there -- I just can't see them!

When I do a SELECT, it processes for a while, and then returns nothing.

Same with a count, it sits there processing, and then returns a '0'

However when I do the same on a table I know has no rows, it definitely
comes back right away.

I'm logged in as root. Do I need to assign myself some permissions to
see these records? And the count numbers?

Slow Select Using Count(distinct) In A Table Bigger Than 100000 Records
Recently I started using MYSQL in my enterprise. I made a table which has around 100000 records. The problems is that it is really slow.. Im trying to do a query in which I get the number of distinct users per day.

This is my query:

select date(startedDate) as mydate, count(distinct(Users)) as users from Mytable
group by mydate

It is really simple and it does it correctly but it takes one minute.. One minute is not too much time but i need to insert around 10 000 000 records and thats what worries me.....

Find Users With Similar Tastes / Select Count Of Subquery & Maintain Column Assignmts
The ultimate goal of the query:
List users by similarity in taste to user 1 based on the similarity of their favorite sites.

Setup
table users:
id, etc.

table sites:
id, etc.

table favorites:
user_id, site_id

Users add sites to their favorites list, a row is inserted into the favorites table associating users and sites.

Criteria for "similarity of taste":
%similarity = (number of intersecting favorites) / (number of unique favorites between them)

My attempt:

SELECT COUNT(*) / (SELECT COUNT(*) FROM
(SELECT DISTINCT id FROM favorites WHERE favorites.user_id = u2.id OR favorites.user_id = 1) as unique_favs)
as p_match,
u2.*
FROM favorites as f1
JOIN favorites as f2 ON f2.site_id = f1.site_id AND f2.user_id != 1
JOIN users as u2 ON u2.id = f2.user_id
WHERE f1.user_id = 1
GROUP BY u2.id
ORDER BY p_match DESC
LIMIT 30
The error:
Unknown column 'u2.id' in 'where clause'

Apparently column associations are "forgotten" when doing a derived table subquery.

Any ways I can fix this? Or any preferred methods of achieving the same result?

About "Select Count(*)" Always Returns 0.
my mysql version is:

Ver 14.7 Distrib 4.1.14, for pc-linux-gnu (i686) using EditLine wrapper

OS: uname -a
Linux backup_srv1 2.4.29 #4 SMP Thu Mar 24 10:31:26 CST 2005 i686 unknown unknown GNU/Linux

Desc:

My statement is
"SELECT COUNT(1) FROM t_card_info_035 WHERE Fcommodity_id = 0x1111 AND Fseller_uin =111111 AND Fdeal_id = 12345;"

my client is a daemon, when it started, it can return the correct result, (such as 4 ) but after two or three days later, it always returns 0. I had gdb into it and find that the result in the result row is 0. but when I restart my daemon program, it will be ok again. This made me crazy... it is a mysql c API bug or something else?

My daemon client is programmed by c++ , and use the c API to connect mysql. I had check that there is nothing wrong with my code, and it has no memory leak or somthing else.

#1136 - Column Count Doesn't Match Value Count At Row 1
I'm getting the above error with the following SQL Statement. I cannot seem to find the error in the code. The select statement does pull multiple rows.

I'm using my SQL version: 4.1.19

Any clue on why this isn't working?

INSERT INTO `Grants` ( `Project_Code` , `Grant_Code` , `Fiscal_Year` , `Capital` )
VALUES (
(
SELECT Project_Code, Grant_Code, FY, SUM( Capital )
FROM Grants_Temp
WHERE Project_Code = 'OSUT'
AND FY = '2006'
AND Claim_Month = '072006'
GROUP BY Grant_Code
ORDER BY Grant_Code
)
)

Select Query With Sub-query For Count And Max
I have a table "test"... as below... I want to have a result set of all the parents with the count of their children and the lastest created date of their child ...

SELECT Count(something) As Amount WHERE Amount = 'this'
SELECT search_query, COUNT(search_query) as count
FROM hr_search
WHERE count >= 2
GROUP BY search_query
ORDER BY search_query ASC

I'm building a search cloud and this is the query I want to use to grab all results from my database with more than two entries... however SQL doesnt like me using 'count' in the WHERE statement. Is there any way around this?

Column Count Doesn't Match Value Count At Row 1
I am getting the following error when I run my query.
Column count doesn't match value count at row 1

I have looked up this error and have checked and I appear to have the right number and names in my query. In the DB table I have 34 columns, and that is what I have in the query.

The last 4 in the query are for the names of the images being uploaded, but am not sure how this all works, so I don't know if I need them, but have them there until I know for sure. Comment, Purchase and Remarks are not used in this form, but I have added them so everything is being shown in the query. Code:

Count(*) As Count And TotalCount Of Count
data in myTable1

(n) country_id
(1) 3
(2) 1
(41) 1
(5) 2
(6) 3
(7) 4

data in myTable4

(time) param
(10 : 10) c=4
(10 : 12) c=2
(10 : 30) n=41&k=5
(10 : 35) c=1
(10 : 37) n=5
(10 : 50) c=2
(10 : 54) c=2
(10 : 55) n=1&cate=6
(11 : 12) c=2
(11 : 15) n=7
(11 : 20) c=1
I have data in myTables like the above.

I have the following code.

code

(select left(time,2) as hour, count(*) as count
from myTable4
where

left(param,1)='c'
and
substring(param,3,1)=2

group by left(time,2)
)
UNION all
(select left(time,2) as hour, count(*) as count
from myTable4,myTable1

where
left(param,1)='n'
and
substring(substring_index(param, '&', 1) ,3)=myTable1.n
and
myTable1.country_id=2
group by left(time,2)
)

order by hour
And the code above produces the following result.

result

(day) count
(10) 3
(10) 1
(11) 1
The following would-be code doesn't work correctly, but it will show what I want.

would-be code

(select left(time,2) as hour, count(*) as count,
sum(count) as totalCount
from myTable4
where

left(param,1)='c'
and
substring(param,3,1)=2

group by left(time,2)
)
UNION all
(select left(time,2) as hour, count(*) as count,
sum(count) as totalCount
from myTable4,myTable1

where
left(param,1)='n'
and
substring(substring_index(param, '&', 1) ,3)=myTable1.n
and
myTable1.country_id=2
group by left(time,2)
)

order by hour
And the following is my target result.

target result

(day) count totalCount
(10) 3 5
(10) 1 5
(11) 1 5