FiveTech Support Forums

Thank you.

Unforgivable oversight on our part.

Master, your great knowledge and your humility make you great, thank you.

Mr. Rao and Mr Carlos:

With the advice of Mr. Gallego, now everything is going very well.

I already breathe better

Can you explain to me the function of the H and the S?

Thank you very much to both

With best regards

Armando,

The problem is related with xBrowse.

If you run your example without including the xBrowse instantiation

 @ oBar:nHeight, 0 XBROWSE oBrw SIZE 0,-30 PIXEL OF oDlg ;

    DATA SOURCE oRsHdr ;

    COLUMNS "HDR_FOL","HDR_FDM","HDR_REF",;

       "HDR_EOS",;

       "HDR_TOU",;

      ....

and in exchange you use

cSql := "SELECT *,S.SUC_NOM FROM HdrVda H LEFT JOIN Branches S ON H.HDR_SUC = S.SUC_NUM ORDER BY HDR_FOL"

FW_OpenRecordSet( oCn , cSql )

xBrowse(oRsHdr)

You will see that the syntax without the "H" of the alias works correctly

But if you want to use @oBar:nHeight, 0 XBROWSE oBrw SIZE 0,-30 PIXEL OF oDlg .....

you have to write

cSql := "SELECT H.*,S.SUC_NOM FROM HdrVda H LEFT JOIN Branches S ON H.HDR_SUC = S.SUC_NUM ORDER BY HDR_FOL"

That is, forcing the identification of each object on the LEFT table with its alias "H".

I think it is something related to XBROWSE. Perhaps the master Rao can shed more light on this.

H and S are aliases to indentify LEFT and RIGHT tables (hdrvda and sucursales in your example). Each field in table hdrva will be invoked with prefix "H.": H.HDR_FOL, H.HDR_EOS, H.HDR_SUC, etc., and each field of table sucursales will be invoked with prefix "S.": S.SUC_NUM,

S.SUC_NOM. This is very usefull when you have a field with the same name in both tables you are joining.

Regards,

Carlos:

it became very clear

Thank you.

With best regards