MySQL IN question

I am doing a query to search the database for people selected days of the week. This is stored in a set column. I can use the IN if the user has only selected one day, but how do I get results if they selected multiple days or want to search for multiple days.
Thanks!

I know and I wouldnt use it if I had to do it over again, but it's already
set up like that so I have choice at this point.
My database has a column that is a SET column which is storing days of the
week, Monday,Tuesday,Wednesday and etc.
I want users to search for those days by selecting one or more days and then
searching the database for them.
Like I said, if there was only one day, I could do it with the IN operator.
So other than that, I'm stuck...

Similar Messages

MySQL /JDBC Question

I began playing with JDBC a few days ago. I set up a database using mySQL and wrote a simple java program that will connect to it. Works good from the computer that holds the database.
I try and run the same program from my secondary computer which does not have mySQL or ODBC mySQL drivers, I get com.mysql.jdbc.Driver for an error message. (Trying to access the database on my main computer via ip/databasename)
My Question is, do you HAVE to have mySQL or Connector/ODBC installed on a computer if you wish to connect to a database on other computer??
Here's where it prints the error message...
try
Class.forName("com.mysql.jdbc.Driver");
catch (Exception e)
JOptionPane.showMessageDialog(null, "ERROR = " + e.getMessage());
I use this as my url..
private final String url = "jdbc:mysql://122.122.122.122:3306/test123";

Say I want to make a simple web applet that will
access a database on my computer. The only way my
vistors to my website will be able to access the
database via the web applet is by having mySQL JDBC
driver installed on their computers?yes.
however.
you can package up the JDBC driver as part of your jar with your applet so it doesn't require the user to "install" anything. it's just part of your applet.

Quick MySQL Indexing question

Hi all,
I know this is not strcitly a JDBC problem, but i was wodering if you have any ideas anyhow...
I've implemented an Index on two of my columns in a table in my MySQL db. My question is, when i insert new rows into the database, is the index automatically updated? If not, how do I go about updating the Index?
Many thanks,
BBB

I thought the database would manage that for you. AFAIK, you don't have to do anything. That's the way it is in Oracle. I thought that was true for all RDBMS. - MOD

Mysql database question

Let's say that I am making a java program that connects to a Mysql database and uses the database "MyDatabase".
Forgive me, but I am relating this to a Microsoft Access database.
The database is not on a network, but is (or will be installed) on the user's machine. In otherwords, the database will be on the user's machine and the changes to the database will only affect that user.
If I am to let a user use this program, will they have to also have Mysql installed for the program to access the database and pull information from it?
--Thanks!

Let's say that I am making a java program that
connects to a Mysql database and uses the database
"MyDatabase".[snip]
The database is not on a network, but is (or will be
installed) on the user's machine.[snip]
If I am to let a user use this program, will theyhave
to also have Mysql installed for the program toaccess
the database and pull information from it?Yes.
(if you are asking if the code could directly
access/manipulate MySQL datafiles without going
through the MySQL program, I suppose in theory you
could, but I seriously doubt you really want to)The reason being is that it would be a client database for their own use, as oppose to sharing the database with others.
In any case, Thanks!
Next question: is there any place where I could go to find code that would treat the Mysql database as a client database (so far, the code that I found requires Mysql to be installed and running in the background on the user's machine)?

Mysql charset question

well I just got Mysql Browser query and I was modifying some of the variables inside the table from varchar to longtext and it ask me for the charset. So my question is: Which one should I use ? The application its used on a spanish enviroment.
Thanks!

Uhh, one of the sets that contains spanish characters, I suppose...
http://dev.mysql.com/doc/mysql/en/charset-charsets.html
looks like your choices are some universal charsets (utf8 and ucs2) and some "western" sets. You probably ought to pick a charset that also has a spanish collation (if you want to do native-language sorting).

MySQL query question

Hi All,
I've got 2 MySQL tables, movie and movie_tag. The movie table contains a movie_id column and the movie_tag table contains 2 columns, movie_id and tag_id. I know how to correctly join them, what I would like to know is if I have this query:
SELECT * FROM movie LEFT JOIN movie_tag USING movie_id
and save it as a result set in a language like PHP or Python can I:
1. Loop through and only display each movie_id once, BUT...
2. Also display all the tag_id's without nested-looping.
I.e. I would like to list then something like:
-- movie_id_1
|-- tag_id_1
|-- tag_id_2
-- movie_id_2
|-- tag_id_1
Thanks for any help you can give!

Your query will give you the cartesian product of movie and movie_tag, which means (given your example list) the output rows will look like this:
movie_id_1 | tag_id_1
movie_id_1 | tag_id_2
movie_id_2 | tag_id_1
You can then create the list you've shown above by post-processing in your procedural language of choice: loop over the results, track when movie_id changes, indent accordingly.

Coldfusion fetch mysql query question

Hi:
Here is my coldfusion code:
<cfquery name = "query" datasource = "cfmysql" result = "result">
     SELECT COUNT(*) FROM students WHERE gender = 'boy'
</cfquery>
And then I want to check if value is greater than 0. I then do:
<cfif existSearchHintsQuery.COUNT(*) gt 0>
But coldfusion gives me an error at the * character, the colume of the mysql result is "COUNT(*)", so I really need the * character.
How do I fetch that count number?
Thanks.

You need to use an alias so you can access the COUNT(*) like any other column:
<cfquery name="yourQueryName" datasource="cfmysql" result="result">
    SELECT COUNT(*) AS TotalStudents FROM students WHERE gender = 'boy'
</cfquery>
<cfif yourQueryName.totalStudents GT 0>
... do something ...
</cfif>
Also, read up on using cfqueryparam (if you are not using it already)
        http://livedocs.adobe.com/coldfusion/8/Tags_p-q_18.html

MySQL Version Question

Up till now I have been on a server using version 4.1 but I
have now
purchased my own little bit of the internet and I have the
option of
installing version 5, are there any major advantages to me in
doing this in
relation to the shopping cart software I am using i.e. WA
eCart and
Cartweaver ? or are the new features not relevant to these
types of
applications until I start rolling my own so to speak.
Thanks
Dave Buchholz
I-CRE8
www.i-cre8.co.uk
Skype ID: I-CRE8

Thanks David
as ever concise and constructive advice
Dave Buchholz
I-CRE8
www.i-cre8.co.uk
Skype ID: I-CRE8
"David Powers" <[email protected]> wrote in message
news:eeu26s$ft$[email protected]..
Dave Buchholz wrote:
> Up till now I have been on a server using version 4.1
but I have now
> purchased my own little bit of the internet and I have
the option of
> installing version 5, are there any major advantages to
me in doing this
> in
> relation to the shopping cart software I am using i.e.
WA eCart and
> Cartweaver ? or are the new features not relevant to
these types of
> applications until I start rolling my own so to speak.
If you have the option of version 5, take it. It will make
upgrading to
subsequent versions a lot easier. MySQL 5 offers improved
features such
as stored procedures and views. Although they're not
supported by
Dreamweaver, you may find them useful, particularly once you
decide to
start developing things on your own.
AFAIK, MySQL 5.2 is likely to be the important upgrade
(probably at
least a year away), as it's planned to introduce support for
foreign key
restraints in the default MyISAM table. At the moment, only
InnoDB
tables have support for foreign key restraints, but most
hosting
companies don't provide support for InnoDB.
David Powers
Adobe Community Expert
Author, "Foundation PHP for Dreamweaver 8" (friends of ED)
http://foundationphp.com/

MySQL Date Question

I have two DATETIME columns in a table. Is it possible to get the difference between the two dates and then format the output as H:M P?
I've been trying to get this to work for a while... but now I'm not even sure it's possible.

I have two DATETIME columns in a table. Is it possible
to get the difference between the two dates and then
format the output as H:M P?A MySql-query along these lines might just do the job:
SELECT SEC_TO_TIME(UNIX_TIMESTAMP(yourDATETIME_1) - UNIX_TIMESTAMP(yourDATETIME2)) AS TimeDifference FROM yourTable;
It gives you the time difference (conveniently availaible as TimeDifference) in a HH:MM:SS format. Additionally, you can use the TIME_FORMAT() function to convert it to a more suitable format, e.g.
SELECT TIME_FORMAT(SEC_TO_TIME(UNIX_TIMESTAMP(yourDATETIME_1) - UNIX_TIMESTAMP(yourDATETIME2)), "%H:%i") AS TimeDifference FROM yourTable;
- giving you the hours and minutes. For details, see http://www.mysql.com/doc/en/Date_and_time_functions.html
Maybe all of this isn't exactly what you were looking for, but at least it should give you an idea of the possibilities and something to work from. Hopefully!
nr

MySQL upgrade question

Not sure if this is the appropriate forum for a mySQL upgrade--but since Oracle owns mySQL now I thought I would give it a try.
I just ran the mysql_upgrade and can't locate the log to review. Anyone know where the log is dumped?

Hi
Please post your issuen on forums.mysql.com/
Regard
Helios

Mysql java question?

Hello,
I am writing a java program to connect with mysql, the database two tables: order and items.
In the order the orderNo is a unique value, and appears again the items table for each book ordered.
Could any advise, if I wanted to delete the orderNo from the order table, and also delete all the records in the items table with the same orderNo, could I achieve this in one sql statement?
Thanks
table (order):
orderNo
table (items):
orderNo
bookname
quantity
price

example for orderNo 2:
DELETE items,order FROM items,order WHERE order.orderNo=2 and items.orderNo=2Haven't tried this myself, though.
regards

MySQL - Alias Question

Hi Chaps,
Have a quick one for you...
In a SQL Query, I know you can create an alias for column name, eg.
...tbl_jobxml.job1 as job2
but can you create an alias for the value within that column, eg.
...tbl_jobxml.job1='y' as job2='Complete'
Sorry if this is dumb question, but better to ask that claim ignorance!

Hi Guys,
sorry to the delay in responding, basically this is what I want to do:
I want to show all results when:
- tableA
projectstatus='complete'
- tableB
projectstatus='complete'
- tableC
jobstatus='y'
I'm familiar with UNIONs and INNER JOINs, it's just not sure how to go about getting all the results form the 3 tables, when the values are different.

MySQL SQL Question

OK fellas. Gentle on the newbie.
I have my datasource set up, I have the MySQL Query Browser
working and I'm poking around a bit with the World dB tables.
I can't seem to get why this:
SELECT * FROM countrylanguage c; ORDER BY IsOfficial;
isn't doing a thing. No error, but it surely doesn't seem to
be alphabetizing on IsOfficial.
Thanks!
Rick

Try adding ASC or DESC to the end of it.
Brendon
"webspinner" <[email protected]> wrote in
message
news:eo6akr$2r7$[email protected]..
> OK fellas. Gentle on the newbie.
>
> I have my datasource set up, I have the MySQL Query
Browser working and
> I'm
> poking around a bit with the World dB tables.
>
> I can't seem to get why this:
> SELECT * FROM countrylanguage c; ORDER BY IsOfficial;
>
> isn't doing a thing. No error, but it surely doesn't
seem to be
> alphabetizing
> on IsOfficial.
>
> Thanks!
>
> Rick
>

OT: MySQL GROUP_CONCAT Question

Are there any MySQL gurus here who understand MySQL's
GROUP_CONCAT
function? I'm trying to figure out how it works.
This is the query I started with:
$res = mysql_query ("SELECT * FROM cia_ppl CP
LEFT JOIN gw_geog GG on GG.IDArea = CP.ID_Name
LEFT JOIN cia_notes CN on CN.IDName = CP.ID_Name
WHERE CP.Pop != 0") or die (mysql_error());
It works, except that it only displays the first value in
cia_notes.ID_Note in a particular cell. For example, consider
the
following example where there are two notes listed for the
U.S. in table
cia_notes...
ID_Name \ ID_Note
can \ Pop
mex \ Ppl
usa \ Pop
usa \ Ppl
My web page might display the following:
Name \ Population \ Notes
Canada \ 60 million \ Pop
Mexico \ 80 million \ Ppl
United States \ 300 million \ Pop
When I want the last row to look like this:
United States \ 300 million \ PopPpl
I want to use MySQL's SEPARATOR function to insert commas and
a PHP
str_replace to convert it to superscripts, like this:
United States \ 300 million \ 1,2
At any rate, below is the script I came up with to tap into
the
GROUP_CONCAT function. All the data in my table displays
correctly,
except that it now displays no notes (ID_Note) at all. Thanks
for any tips.
SELECT CP.ID
, CP.ID_Name
, CP.Pop
, CP.Pop2
, CP.AgeMed
, CP.Age0
, CP.Age15
, CP.Age65
, CP.Sex
, CP.LifeExp
, CP.PopGrowth
, CP.LitTotal
, GG.IDArea, GG.Name
, DT.ppl_notes
FROM cia_ppl CP
LEFT JOIN gw_geog GG ON GG.IDArea = CP.ID_Name
LEFT OUTER JOIN (
select ID_Name
, GROUP_CONCAT(ID_Note) as ppl_notes
from cia_notes
where Cat = "Ppl"
group
by ID_Name
) as DT
ON DT.ID_Name = CP.ID_Name
WHERE CP.Pop != 0
and CP.ID_Name != 'ear'
AND CP.ID_Name != 'eru'
GROUP BY GG.Name
ORDER BY CP.ID
www.geobop.org - Family Websites
www.invisible-republic.org - Adult political websites (Mature
adults only)

this prod_id to the prim key.
-----------^^
"Field 'prodid' doesn't have a default value"
-------------^
Typo?
Murray --- ICQ 71997575
Adobe Community Expert
(If you *MUST* email me, don't LAUGH when you do so!)
==================
http://www.projectseven.com/go
- DW FAQs, Tutorials & Resources
http://www.dwfaq.com - DW FAQs,
Tutorials & Resources
==================
"Deon H" <[email protected]> wrote in message
news:[email protected]..
> Hi there. (I know this is propably not the right forum
to ask here, but
> the other forums don't help a lot. Please help me.)
>
>
>
> I have been using phpMyAdmin for a couple of years now
and simply love
> it.
> I have just created a new DB with 6 fields of which the
1st one is
> named: prod_id.
> type: smallint
>
> The rest of the fields are the default settings as
usual. I have changed
> this prod_id to the prim key.
>
> For some reason which I cannot figure out why, does not
show under
> "extra" as "auto_increment".
>
> I have double chacked the other db's I have created
exactly as I have
> done this one, and there is says "auto_increment".
> When I now try to add a record to the DB, I get this
error: "Field
> 'prodid' doesn't have a default value"
>
> Please advise where I am doing something wrong.
>
> Sincere regards,
> Deon

MySQL - Another 'Can't connect through mysql.sock' question...

Hey, folks.
So I'm trying to install MySQL to run with PHP on my PowerBook G4 (running 10.4.7, non-server edition) to use it to test out a shopping cart program for a website I'm building.
I had it working as of Monday, when I installed it, got all the permissions set, built the necessary tables, and changed the root password (and logged in just to make sure it worked before retiring for the night)...but today I realized that I had somehow installed the wrong version of MySQL (I connected to it earlier today and discovered it was 4.026 - and I needed to be running MySQL 4.1.20, in order to be running the same version as my webhost).
So I decided to upgrade. I downloaded and installed the 4.1.20 file, followed the directions about creating the system tables, changed permissions via sudo chown -R mysql:mysql data...and now, when I go to change the root user password (just to make sure it's still the same as it was), I get the following error:
error: 'Can't connect to local MySQL server through socket '/tmp/mysql.sock' (2)'
Check that mysqld is running and that the socket: '/tmp/mysql.sock' exists!
This error also occurs when I try to simply startup MySQL. I also now find I can't connect via MySQL Admin, either - it gives me the same error. Pinging the host works, however.
Sooo...anyone have any ideas? I've read up on the forums re: Apple changing the socket to /var/mysql/mysql.sock as of 10.4.4, but it seems that would have affected me earlier this week when I was running the previous version of MySQL, too (I certainly haven't upgraded the OS since then).
Regardless, I can't connect through MySQL Admin using the /var/mysql/mysql.sock socket, anyway...nor the standard /tmp/mysql.sock.
Any thoughts on what might be causing this? I should confess, I'm well-versed in DOS (ugh), but UNIX is not really my strong suit, so I'm still figuring out how to get around in the Terminal...
Thanks so much for any input you can give me!
(Oh, one more thing, since it'll probably come up - I'm not currently connecting via PHP, but I will be eventually. Right now, I just want to be able to change my root password, and login from the Terminal)!
Thanks again!\
PowerBook G4 1GHz 15 Mac OS X (10.4.7)

Alright, folks.
Somehow my computer has fixed itself. After wiping the mysql directories entirely, then reinstalling, I was still getting the same error.
After going back to the original "MySQL-On-Mac" site at Marc Liyanage's entropy.ch site & following some of the instructions there, somehow my problem seems to have fixed itself.
I wish I could tell you what the solution was (to benefit anyone else having this problem), but since I was simply following the unix commands listed there (without much explanation, at times, as to what they were doing), I just know that somehow it worked.
(But if I had to make a guess, I think it had to do with starting the server via sudo ./bin/mysqld_safe &)...

PHP & MySQL recordset question

Hello all,
I've been searching for a while, and I can't seem to find an
answer, so sorry if this has been asked a lot.
I've got 5 tables that have similar information (id,
firstname, lastname, topic, thread, and date).
What I'm trying to do is have one search box where the user
types in a keyword. Then it searches all 5 tables in both the topic
and thread collumns. Then it displays the results from all 5 tables
and orders them by date.
I'm using dreamweaver 8, PHP, and MySQL.
I've tried to use this format:
SELECT column1 column 2
FROM table1
WHERE thread OR topic LIKE %variable%
UNION
SELECT column 1 column2
FROM table 2
WHERE thread OR topic LIKE %variable%
ORDER by date DESC
but keep getting error messages.
Is this possible? If so, can anyone help me figure out how to
do this, or where I can find a good tutorial?
Thanks.

Thanks for your reply.
Sorry, here is the entire SQL statement:
SELECT eventforum.FirstName, eventforum.LastName,
eventforum.topic, eventforum.Thread, eventforum.`Date`
FROM eventforum
WHERE Thread or topic LIKE %colname%
UNION
SELECT fundforum.FirstName, fundforum.LastName,
fundforum.topic, fundforum.Thread, fundforum.`Date`
FROM fundforum
WHERE Thread OR topic LIKE %colname%
UNION
SELECT generalforum.FirstName, generalforum.LastName,
generalforum.topic, generalforum.Thread, generalforum.`Date`
FROM generalforum
WHERE Thread OR topic LIKE %colname%
UNION
SELECT persupport.FirstName, persupport.LastName,
persupport.topic, persupport.Thread, persupport.`Date`
FROM persupport
WHERE Thread OR topic LIKE %colname%
UNION
SELECT prosupport.FirstName, prosupport.LastName,
prosupport.topic, prosupport.Thread, prosupport.`Date`
FROM prosupport
WHERE Thread OR topic LIKE %colname%
UNION
SELECT soldier.FirstName, soldier.LastName, soldier.topic,
soldier.Thread, soldier.`Date`
FROM soldier
WHERE Thread OR topic LIKE %colname%
ORDER BY 'Date' DESC
the variable colname is defined as:
Name: colname
Type: Text
Default Value: -1
Runtime value: $_POST['searchbox']
here is the error message that I get with this setup:
Missing type for variable:colname
If I remove the variable and the WHERE statements, I get this
error message:
MySQL Error #: 1271
Illegal mix of collations for operation 'UNION'
If I remove the variable, the WHERE staements, and the ORDER
BY statement, I get the following error message:
MySQL Error #: 1271
Illegal mix of collations for operation 'UNION'

MySQL IN question

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