Getting number of results from mysql query.

Hi,
Is there an easy way to get the number of rows (results) returned by a mysql query without looping through each result and incrementing using the rs.next()?
Statement statement = connection.createStatement();
ResultSet rs = statement.executeQuery("SELECT * FROM sometable WHERE name=\"John\"");

Have you looked at the mysql documentation at all ?
What about "SELECT count(*) FROM sometable WHERE name=\"John\"");
And if this value is going to be dynamic at all consider using a preparedStatement.
Note Haven't worked with MySql so this isn't guarenteed to work, but you get the idea. This is more of a sql question than a java question

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SYSTEM.COURSOR_RECORD = 1 tells this is the first record
SYSTEM.LAST_RECORD = 'TRUE' tells this is the last record
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Get Comma separated result from SQL Query

Hey Everyone
I have a requirement where i need to get comma separated result of names because there is one to many relationship i.e for every protocol there are mutiple people associated to it , and i created PL/SQL function for that and everything was fine and when it is in production multiple number of cursors were opened because of the logic and leading to RAC fail over and for that we were manually clearing the cursors every weekend and i am looking to create a Materialized view for this logic but i was unable to code the logic using Connect by clause
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P06065     TESTER13 TESTER13
P02095     PATRICIA CARMELITANO
P02095     ANNE MUIR
P02095     ROBERT HARLOW
P02095     JANICE ALBERT
P02095     Jacqueline van Dalen
P02095     GUENTER HENNIG DR.
P05209     Olga Xenaki
P05553     Birgit Limbach-Angele
P05553     Anja Schulz Dr.
P05553     CHRISTA HAGENBUCHER
here is the function which i wrote, i need to get the same logic through SQL Statement .. thanks for your help
cursor c_GSCR is
select T565804.FST_NAME||' '||T565804.LAST_NAME
from
S_PT_POS_HST_LS T544105 /* S_PT_POS_HST_LS_Protocol_Team */ ,
S_CONTACT T565804 /* S_CONTACT_Protocol_Team */,
S_CL_PTCL_LS T541903 /* S_CL_PTCL_LS_Protocol */
where ( T541903.ROW_ID = T544105.CL_PTCL_ID and
T544105.POSTN_ID = T565804.PR_HELD_POSTN_ID and
T544105.ROLE_CD = 'Lead Project Manager' AND
T541903.ROW_ID = v_PTCL_ID and
T541903.PAR_PTCL_ID is null and T544105.END_DT is null );
BEGIN
l_row_num := 0;
l_role := '';
l_role_list := '';
v_PTCL_ID := PTCL_ID;
OPEN C_GSCR;
if C_GSCR%isopen THEN
LOOP
FETCH C_GSCR INTO l_role;
exit when C_GSCR%notfound;
IF l_role_list IS NULL THEN
l_role_list:=l_role;
ELSE
l_role_list:=l_role_list||', '||l_role;
END IF;
END LOOP;
CLOSE C_GSCR;
end if;
~Srix

Hi,
Srix wrote:
Thanks for the Info .. My database in 10g R 2 i started using COLLECT Function
select T541903.PTCL_NUM ,
CAST(COLLECT(T565804.FST_NAME||' '||T565804.LAST_NAME) AS varchar2_ntt) , 7) AS LPM_NAME
from
S_PT_POS_HST_LS T544105 /* S_PT_POS_HST_LS_Protocol_Team */ ,
S_CONTACT T565804 /* S_CONTACT_Protocol_Team */,
S_CL_PTCL_LS T541903 /* S_CL_PTCL_LS_Protocol */
where T541903.ROW_ID = T544105.CL_PTCL_ID and
T544105.POSTN_ID = T565804.PR_HELD_POSTN_ID and
T544105.ROLE_CD = 'Lead Project Manager' AND
T541903.PAR_PTCL_ID is null and T544105.END_DT is null
GROUP BY T541903.PTCL_NUM
The result i like ...Do you mean "The result *is* like ..."?
Or do you mean "The result I [would] like [is] ..."?
The code above has unblanaced parentheses. If you are getting anything other than an error message, then I don't believe you are really running what you posted.
Whenever you have a problem, post a complete test script that people can use to recreate the problem and test their ideas.
Please do that. Post CREATE TABLE and INSERT statements to crate the sample data, the code you used to create the carachr2_ntt type and the function, and your best attempt at a query (formatted). Simplify as much as possible. For example, do you really need 3 tables to illustrate the problem? For purposes of asking a question on this forum, can't you pretend you have just one table, with 2 columns?
I suspect the problem has to do with the user-defined type and function, which you didn't post. I can't even see how you called the function in your query. Without the information I mentioned above, there's not much I can do to help you.

Limit the number of results from a querying a table

I have a table, NAMES, that holds appx 50 names.
I want to be able to list a certain amount of names and once that limit is reached( 6 or 7 or so), output a row / link / statement that says, you've reached your limit.
For example the output would look similar to :
Jim
John
James
Mike
Henry
Mark
'Limit Reached'
'Limit Reached' would eventually need to be a link, but I am already familiar with creating links from query results, persay.
I've experimented with listagg, case statements and decode but am not sure how to do this. I'm thinking decode is the way to go but am not sure how to keep track of a counter as the sql is running. This needs to be written in sql only, not pl/sql, if possible. My query so far is
Select first, last
From Names
where rownum <= 6
Not sure how to accomplish this. Any help would be greatly appreciated. Thanks in advance

Hi,
NewApexCoder wrote:
@FrankKulasg
I have tested these using union. However, I also have columns I need to include that aren't text fields (such as an ID column, which is a number / integer type). I can't use NULL. Is there anything to substitue for this?
Other people can use NULL. Why can't you?
If you could use NULL. then you could do something like this:
SELECT ename
,       job
,       sal     -- a NUMBER column
FROM    scott.emp
WHERE   ROWNUM <= 6
    UNION ALL
SELECT 'Limit reached'
,       NULL    -- in place of a VARCHAR2
,       NULL    -- in place of a NUMBER
FROM    dual
Output:
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SMITH         CLERK            800
ALLEN         SALESMAN        1600
WARD          SALESMAN        1250
JONES         MANAGER         2975
MARTIN        SALESMAN        1250
BLAKE         MANAGER         2850
Limit reached
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(Datarpovider1) (Datarpovider1) (Datarpovider2)
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File->Export Result Set-> Excel format...
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Please throw some light on this....
Could be very appreciable ....
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Hi
Create a sql statement which generates the insert statements.
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Unicode String Issue while Using Results from Another Query

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leonhardtk wrote:
I need to take values from the column of one table that meets certain critera, and create inserts into another table that includes this data.
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{code}
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{code}
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{code}
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{code}
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(SELECT sequence.nextval,
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Hi,
Created this test data
create table plch_test (name varchar2(50));
insert into plch_test values('AKSHAY');
insert into plch_test values('RAHUL');
insert into plch_test values('APARNA');
output
1    AKSHAY
2    RAHUL
3    APARNA
created another destnation table(in your case "my table")
create table plch_test_1 (id number,name varchar2(50));
created another sequence to generate employee ids
create sequence test_seq;
Now populated the desination table
insert into plch_test_1(select test_seq.nextval,name from plch_test);
verify the destination table
select * from plch_test_1
1    AKSHAY
2    RAHUL
3    APARNA
Hope this helps
Regards,
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How to compare result from sql query with data writen in html input tag?

how to compare result
from sql query with data
writen in html input tag?
I need to compare
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with all user and password in database
how to do this?
or put the resulr from sql query
in array
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Hi dejani
first get the user name and password enter by the user
using
String sUsername=request.getParameter("name of the textfield");
String sPassword=request.getParameter("name of the textfield");
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if(exist==1)
out.println("user exist");
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Edited by: BO_Haiyan on Oct 6, 2010 3:47 PM

In that situation:
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Thank You!!

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My environment is Business Objects XI 3.1 SP2 Edge series , i have below quereis with web Intelligence Reports
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not getting list of Values for pronpt until i refresh values for prompt?
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MAT
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2 (p_code NUMBER)
3 RETURN VARCHAR2
4 IS
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Duplicate thread:
How do I get multiple return results from a function

Query on results from another query

Post Author: Duncan1980
CA Forum: Crystal Reports
Is it possible to query on the results from another query. I have a query that produces a list of document numbers. I want to use the output from that query as the filter criteria in a another query in the same Universe.
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Hi Vivek,
It was not directly solved but I applied alternate logic to over come the issue.
Here's what I did to overcome:
I used a sub query in place of the whole result from another query.
For Ex:
Dim1 inlist result from another query1
I made it as
Dim1 inlist (Dim0)
where Conditions.
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Please let me know if i haven't explained clearly.
Hi Aris_BO,
Sorry for not responding earlier. The logic would probably make more queries null & not null. Thats why I was not advised to use it.
Thanks
LN

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Hi Vivek,
It was not directly solved but I applied alternate logic to over come the issue.
Here's what I did to overcome:
I used a sub query in place of the whole result from another query.
For Ex:
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I made it as
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Even though it resolved my problem, It introduces an new issue. It causes increase in query run time when huge set of data is returned from sub query.
Please let me know if i haven't explained clearly.
Hi Aris_BO,
Sorry for not responding earlier. The logic would probably make more queries null & not null. Thats why I was not advised to use it.
Thanks
LN

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