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{

if(msoBrowserCheck())

{

c = document.all(com_id);

a = document.all(anchor_id);

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{

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{

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c.style.visibility = "visible";

} } }

function msoCommentHide(com_id)

{

if(msoBrowserCheck())

{

c = document.all(com_id);

if (null != c && null == c.length)

{

c.style.visibility = "hidden";

c.style.left = -1000;

c.style.top = -1000;

} }

}

function msoBrowserCheck()

{

ms = navigator.appVersion.indexOf("MSIE");

vers = navigator.appVersion.substring(ms + 5, ms + 6);

ie4 = (ms > 0) && (parseInt(vers) >= 4);

return ie4;

}

if (msoBrowserCheck())

{

document.styleSheets.dynCom.addRule(".msocomanchor","background: infobackground");

document.styleSheets.dynCom.addRule(".msocomoff","display: none");

document.styleSheets.dynCom.addRule(".msocomtxt","visibility: hidden");

document.styleSheets.dynCom.addRule(".msocomtxt","position: absolute");

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document.styleSheets.dynCom.addRule(".msocomtxt","left: -1000");

document.styleSheets.dynCom.addRule(".msocomtxt","width: 33%");

document.styleSheets.dynCom.addRule(".msocomtxt","background: infobackground");

document.styleSheets.dynCom.addRule(".msocomtxt","color: infotext");

document.styleSheets.dynCom.addRule(".msocomtxt","border-top: 1pt solid threedlightshadow");

document.styleSheets.dynCom.addRule(".msocomtxt","border-right: 2pt solid threedshadow");

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document.styleSheets.dynCom.addRule(".msocomtxt","padding: 3pt 3pt 3pt 3pt");

document.styleSheets.dynCom.addRule(".msocomtxt","z-index: 100");

}

// -->

processed

SELECT first_name , last_name ,distinct(first_name)

AS Official_mail FROM Staffs;

SELECT first_name , last_name, concat('@usth.edu.vn',

first_name) AS Official_mail FROM Staffs;

SELECT first_name ,

last_name, concat(last_name, '. ', first_name, '@usth.edu.vn ') AS

Official_mail FROM Staffs;

a specific type such as an integer, text, date,

logical, etc.

a coherent set of similar objects that we want

to store data on (e.g. STUDENT, COURSE, CAR)

defined when the database is actually

constructed