?? sql語法手冊.htm
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<H1> </H1>
<DIV align=center><FONT size=6><STRONG><BR>SQL語法手冊</STRONG></FONT> </DIV>
<P> </P>
<H1><SPAN lang=EN-US>Select</SPAN></H1>
<P class=MsoNormal><B><SPAN
style="FONT-FAMILY: 宋體; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">用途：</SPAN><SPAN
lang=EN-US><O:P></O:P></SPAN></B></P>
<P class=MsoNormal><SPAN lang=EN-US><SPAN
style="mso-spacerun: yes"> </SPAN></SPAN><SPAN
style="FONT-FAMILY: 宋體; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">從指定表中取出指定的列的數(shù)據(jù)</SPAN></P>
<P class=MsoNormal><B><SPAN
style="FONT-FAMILY: 宋體; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">語法：</SPAN><SPAN
lang=EN-US><O:P></O:P></SPAN></B></P>
<P class=MsoNormal><SPAN lang=EN-US><![if !supportEmptyParas]> <![endif]><O:P></O:P></SPAN></P>
<TABLE bgColor=#eeeedd border=1 cellPadding=0 cellSpacing=0
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<TBODY>
<TR>
<TD
style="PADDING-BOTTOM: 0.75pt; PADDING-LEFT: 0.75pt; PADDING-RIGHT: 0.75pt; PADDING-TOP: 0.75pt"><PRE><SPAN lang=EN-US style="COLOR: black; FONT-SIZE: 9.5pt">SELECT column_name(s) FROM table_name<O:P></O:P></SPAN></PRE></TD></TR></TBODY></TABLE>
<P class=MsoNormal><SPAN lang=EN-US><![if !supportEmptyParas]> <![endif]><O:P></O:P></SPAN></P>
<P class=MsoNormal><B><SPAN
style="FONT-FAMILY: 宋體; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">解釋：</SPAN><SPAN
lang=EN-US><O:P></O:P></SPAN></B></P>
<P class=MsoNormal style="TEXT-INDENT: 21pt"><SPAN
style="FONT-FAMILY: 宋體; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">從數(shù)據(jù)庫中選取資料列，并允許從一或多個資料表中，選取一或多個資料列或資料行。</SPAN><SPAN
lang=EN-US>SELECT </SPAN><SPAN
style="FONT-FAMILY: 宋體; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">陳述式的完整語法相當(dāng)復(fù)雜，但主要子句可摘要為：</SPAN></P>
<P class=MsoNormal><SPAN lang=EN-US>SELECT select_list <BR>[ INTO
new_table ] <BR>FROM table_source <BR>[ WHERE search_condition ] <BR>[
GROUP BY group_by_expression ] <BR>[ HAVING search_condition ] <BR>[ ORDER
BY order_expression [ ASC | DESC ] ] </SPAN></P>
<P style="MARGIN: 0cm 0cm 0pt"><B><SPAN
style="FONT-FAMILY: 宋體; mso-ascii-font-family: Verdana; mso-hansi-font-family: Verdana">例：</SPAN><SPAN
lang=EN-US><O:P></O:P></SPAN></B></P>
<P style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US
style="COLOR: black; FONT-SIZE: 8.5pt"><SPAN
style="mso-spacerun: yes"> </SPAN>“Persons” </SPAN><SPAN
style="COLOR: black; FONT-FAMILY: 宋體; FONT-SIZE: 8.5pt; mso-ascii-font-family: Verdana; mso-hansi-font-family: Verdana">表中的數(shù)據(jù)有</SPAN><SPAN
lang=EN-US style="COLOR: black; FONT-SIZE: 8.5pt"><O:P></O:P></SPAN></P>
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<TBODY>
<TR>
<TD
style="PADDING-BOTTOM: 0.75pt; PADDING-LEFT: 0.75pt; PADDING-RIGHT: 0.75pt; PADDING-TOP: 0.75pt">
<P class=MsoNormal><B><SPAN lang=EN-US
style="COLOR: black; FONT-FAMILY: Verdana; FONT-SIZE: 8.5pt">LastName<O:P></O:P></SPAN></B></P></TD>
<TD
style="PADDING-BOTTOM: 0.75pt; PADDING-LEFT: 0.75pt; PADDING-RIGHT: 0.75pt; PADDING-TOP: 0.75pt">
<P class=MsoNormal><B><SPAN lang=EN-US
style="COLOR: black; FONT-FAMILY: Verdana; FONT-SIZE: 8.5pt">FirstName<O:P></O:P></SPAN></B></P></TD>
<TD
style="PADDING-BOTTOM: 0.75pt; PADDING-LEFT: 0.75pt; PADDING-RIGHT: 0.75pt; PADDING-TOP: 0.75pt">
<P class=MsoNormal><B><SPAN lang=EN-US
style="COLOR: black; FONT-FAMILY: Verdana; FONT-SIZE: 8.5pt">Address<O:P></O:P></SPAN></B></P></TD>
<TD
style="PADDING-BOTTOM: 0.75pt; PADDING-LEFT: 0.75pt; PADDING-RIGHT: 0.75pt; PADDING-TOP: 0.75pt">
<P class=MsoNormal><B><SPAN lang=EN-US
style="COLOR: black; FONT-FAMILY: Verdana; FONT-SIZE: 8.5pt">City<O:P></O:P></SPAN></B></P></TD></TR>
<TR>
<TD
style="PADDING-BOTTOM: 0.75pt; PADDING-LEFT: 0.75pt; PADDING-RIGHT: 0.75pt; PADDING-TOP: 0.75pt">
<P class=MsoNormal><SPAN lang=EN-US
style="COLOR: black; FONT-FAMILY: Verdana; FONT-SIZE: 8.5pt">Hansen<O:P></O:P></SPAN></P></TD>
<TD
style="PADDING-BOTTOM: 0.75pt; PADDING-LEFT: 0.75pt; PADDING-RIGHT: 0.75pt; PADDING-TOP: 0.75pt">
<P class=MsoNormal><SPAN lang=EN-US
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