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Sql queries

Thread began 12/05/2011 3:44 am by Pardall1955 | Last modified 12/09/2011 11:57 am by Pardall1955 | 3395 views | 7 replies |

Pardall1955

Sql queries

How do you pass parameters in a SQL query to receive the data in a display page.

Here is my scenario:

SELECT *
FROM table1 LEFT JOIN table2 ON table1.iID=table2.pID
WHERE iID = pID

============================================

It joins all the records from table1 to table2 but it only displays the first record. I can´t seem to get the parameter correct to display the proper record when is passed.

I´ve seen other scenarios like:

WHERE (iID = ?) or WHERE iID = 'pID's

But they don't work, what am I missing here.

thanks.

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Ian S

Using the dreamweaver recordset you should be able to pull that information back very easily.

Create a new recordset. Click Advanced

Then enter your query and enter the parameter as something like colname (the dreamweaver standard)

SELECT *
FROM table1 LEFT JOIN table2 ON table1.iID=table2.pID
WHERE pID = colname

Then create a new parameter by clicking the plus icon.

Give it a name. The name needs to match the parameter in the query so call it colname. Select the type of data. i.e Date, Text, Integer. Set a default value of -1 and then set a run time value. This can be a session variable or value from a previous recordset on the page.

And thats it!

Cheers
Ian

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Pardall1955

Using the dreamweaver recordset you should be able to pull that information back very easily.

Create a new recordset. Click Advanced

Then enter your query and enter the parameter as something like colname (the dreamweaver standard)

SELECT *
FROM table1 LEFT JOIN table2 ON table1.iID=table2.pID
WHERE pID = colname

Then create a new parameter by clicking the plus icon.

Give it a name. The name needs to match the parameter in the query so call it colname. Select the type of data. i.e Date, Text, Integer. Set a default value of -1 and then set a run time value. This can be a session variable or value from a previous recordset on the page.

============

Now, that worked, BUT... it only brought the first 3 records on the table.

I HAVE ALSO CREATED A LEFT JOIN ON THE LIST OF RECORDS PAGE with THE ipID WHICH IS THE FOREING KEY FOR THE TABLE2 (pID), AND THEY ALL SHOW UP ON THE LIST OR RECORDS PAGE ...(IS THAT WRONG???)

NOW WHEN I HAVE PASSED THE INITIAL rawURL enconde, I HAVE USED THE iID FROM THE TABLE1. IF I CHANGE THE rawURL enconde id to ipID NOTHING PASSES TO THE SECOND TABLE.

NOW I´M A BIT CONFUSED. HAVE I MADE MYSELF SOMEWHAT CLEAR... OR I AM CONFUSING YOU MORE???

MANY THANKS IN ADVANCE.

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Ian S

What three records did it bring back? Did they equate to the query criteria?

OR... are they the only three records that have values in the linked table - in which case your join might be incorrect.

Maybe an Inner Join might work better for you?

Its difficult to say exactly without seeing / knowing your database structure.

Cheers
Ian

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Pardall1955

THE FIRST 3 RECORD ON THE TABLE, BUT I THINK WHAT HAPPENS HERE IS THAT THERE ARE ONLY 3 RECORDS IN TABLE 2 AND IT ONLY LIKED THEM WITH TABLE1 WHICH HAS 20 RECORDS.

THAT´S VERY POSSIBLE.

MY REAL SCENARIO IS THIS.

I HAVE ON TABLE1 SEVERAL RECORDS(CHURCHES), IT MAY GO TO HUNDREDS PERHAPS AND THEN ONLY A FEW ON TABLE2, WITH ARE(PASTORS) AND WHEN I JOIN THEM i WANT TO BE ABLE TO SHOW CHURCHES WITH IT´S PASTORS NAME AND PHOTO ALONG WITH THE CHURCHES INFORMATION, THEN IF THE CLIENT WANTS TO SEE MORE OF PASTOR INFORMATION, I WANT TO LINK IT TO PASTOR´S PROFILE AND SHOW ALL OF IT´S INFORMATION, BY PASSING PARAMETES FROM ONE PAGE TO ANOTHER.

THANKS AGAIN.

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Jason ByrnesWebAssist

you may need to change the join type you are using. Maybe use a right join, or an inner join


to create links to the pastors profile, create the link to pass the pastors ID using a querystring variable, for example:

pastorProfile.php?id=23

then on the pastorProfile page, filter the recordset using the id querystring variable.

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Pardall1955

I ACTUALLY HAD TO PASS THE PARAMETER THROUGH 3 PAGES, THIS IS REALLY HOW IT WORKED FOR ME, SPENT MORE THAN 3 HRS TRYING TO FIGURE IT OUT. BUT WALLA...BUT ANYWAY THANKS FOR YOU HELP. BY THE WAY, WEBASSIST IS AWSOME, WITHOUT IT WOULD MAKE MY LIFE SO MUCH HARDER

===========================================
SELECT igrejas_adventistas.iID, igrejas_adventistas.iNome, igrejas_adventistas.iEndereco, igrejas_adventistas.iBairro, igrejas_adventistas.iCidade, igrejas_adventistas.iTipo, igrejas_adventistas.ipID, igrejas_adventistas.iSite, igrejas_adventistas.iFoto, pastores.pNome, pastores.pEndereco, pastores.pBairro, pastores.pCidade, pastores.pEstado, pastores.pCEP, pastores.pEmail, pastores.pTelefone, pastores.pCelular, pastores.ig1Nome, pastores.ig2Nome, pastores.ig3Nome, pastores.ig4Nome, pastores.ig5Nome, pastores.ig6Nome, pastores.ig7Nome, pastores.ig8Nome, pastores.ig9Nome, pastores.ig10Nome, pastores.pDescr, pastores.pFoto
FROM igrejas_adventistas, pastores
WHERE igrejas_adventistas.ipID = pastores.pID AND iID = colname

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Pardall1955

here is the link to the site page: asur=igrejas.php then click on the pastor image from the 2nd page.

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