mysql修改表、字段、库的字符集代码,MYSQL代码库,德仔网

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【MYSQL】 mysql修改表、字段、库的字符集
作者:Dezai.CN / 发布于2011/9/15/ 2824
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修改数据库字符集：
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<pre style="font-family: monospace" class="sql"><span style="color: rgb(153,51,51); font-weight: bold">ALTER</span> <span style="color: rgb(153,51,51); font-weight: bold">DATABASE</span> db_name <span style="color: rgb(153,51,51); font-weight: bold">DEFAULT</span> <span style="color: rgb(153,51,51); font-weight: bold">CHARACTER</span> <span style="color: rgb(153,51,51); font-weight: bold">SET</span> character_name <span style="color: rgb(102,204,102)">[</span><span style="color: rgb(153,51,51); font-weight: bold">COLLATE</span> <span style="color: rgb(102,204,102)">...</span><span style="color: rgb(102,204,102)">]</span>;</pre>
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把表默认的字符集和所有字符列（CHAR,VARCHAR,TEXT）改为新的字符集：
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<pre style="font-family: monospace" class="sql"><span style="color: rgb(153,51,51); font-weight: bold">ALTER</span> <span style="color: rgb(153,51,51); font-weight: bold">TABLE</span> tbl_name <span style="color: rgb(153,51,51); font-weight: bold">CONVERT</span> <span style="color: rgb(153,51,51); font-weight: bold">TO</span> <span style="color: rgb(153,51,51); font-weight: bold">CHARACTER</span> <span style="color: rgb(153,51,51); font-weight: bold">SET</span> character_name <span style="color: rgb(102,204,102)">[</span><span style="color: rgb(153,51,51); font-weight: bold">COLLATE</span> <span style="color: rgb(102,204,102)">...</span><span style="color: rgb(102,204,102)">]</span>
如：<span style="color: rgb(153,51,51); font-weight: bold">ALTER</span> <span style="color: rgb(153,51,51); font-weight: bold">TABLE</span> logtest <span style="color: rgb(153,51,51); font-weight: bold">CONVERT</span> <span style="color: rgb(153,51,51); font-weight: bold">TO</span> <span style="color: rgb(153,51,51); font-weight: bold">CHARACTER</span> <span style="color: rgb(153,51,51); font-weight: bold">SET</span> utf8 <span style="color: rgb(153,51,51); font-weight: bold">COLLATE</span> utf8_general_ci;</pre>
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只是修改表的默认字符集：
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<pre style="font-family: monospace" class="sql"><span style="color: rgb(153,51,51); font-weight: bold">ALTER</span> <span style="color: rgb(153,51,51); font-weight: bold">TABLE</span> tbl_name <span style="color: rgb(153,51,51); font-weight: bold">DEFAULT</span> <span style="color: rgb(153,51,51); font-weight: bold">CHARACTER</span> <span style="color: rgb(153,51,51); font-weight: bold">SET</span> character_name <span style="color: rgb(102,204,102)">[</span><span style="color: rgb(153,51,51); font-weight: bold">COLLATE</span><span style="color: rgb(102,204,102)">...</span><span style="color: rgb(102,204,102)">]</span>;
如：<span style="color: rgb(153,51,51); font-weight: bold">ALTER</span> <span style="color: rgb(153,51,51); font-weight: bold">TABLE</span> logtest <span style="color: rgb(153,51,51); font-weight: bold">DEFAULT</span> <span style="color: rgb(153,51,51); font-weight: bold">CHARACTER</span> <span style="color: rgb(153,51,51); font-weight: bold">SET</span> utf8 <span style="color: rgb(153,51,51); font-weight: bold">COLLATE</span> utf8_general_ci;</pre>
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修改字段的字符集：
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<pre style="font-family: monospace" class="sql"><span style="color: rgb(153,51,51); font-weight: bold">ALTER</span> <span style="color: rgb(153,51,51); font-weight: bold">TABLE</span> tbl_name <span style="color: rgb(153,51,51); font-weight: bold">CHANGE</span> c_name c_name <span style="color: rgb(153,51,51); font-weight: bold">CHARACTER</span> <span style="color: rgb(153,51,51); font-weight: bold">SET</span> character_name <span style="color: rgb(102,204,102)">[</span><span style="color: rgb(153,51,51); font-weight: bold">COLLATE</span> <span style="color: rgb(102,204,102)">...</span><span style="color: rgb(102,204,102)">]</span>;
如：<span style="color: rgb(153,51,51); font-weight: bold">ALTER</span> <span style="color: rgb(153,51,51); font-weight: bold">TABLE</span> logtest <span style="color: rgb(153,51,51); font-weight: bold">CHANGE</span> title title <span style="color: rgb(153,51,51); font-weight: bold">VARCHAR</span><span style="color: rgb(102,204,102)">(</span><span style="color: rgb(204,102,204)">100</span><span style="color: rgb(102,204,102)">)</span> <span style="color: rgb(153,51,51); font-weight: bold">CHARACTER</span> <span style="color: rgb(153,51,51); font-weight: bold">SET</span> utf8 <span style="color: rgb(153,51,51); font-weight: bold">COLLATE</span> utf8_general_ci;</pre>
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查看数据库编码：
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<pre style="font-family: monospace" class="sql"><span style="color: rgb(153,51,51); font-weight: bold">SHOW</span> <span style="color: rgb(153,51,51); font-weight: bold">CREATE</span> <span style="color: rgb(153,51,51); font-weight: bold">DATABASE</span> db_name;</pre>
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查看表编码：
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<pre style="font-family: monospace" class="sql"><span style="color: rgb(153,51,51); font-weight: bold">SHOW</span> <span style="color: rgb(153,51,51); font-weight: bold">CREATE</span> <span style="color: rgb(153,51,51); font-weight: bold">TABLE</span> tbl_name;</pre>
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查看字段编码：
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<pre style="font-family: monospace" class="sql"><span style="color: rgb(153,51,51); font-weight: bold">SHOW</span> <span style="color: rgb(153,51,51); font-weight: bold">FULL</span> <span style="color: rgb(153,51,51); font-weight: bold">COLUMNS</span> <span style="color: rgb(153,51,51); font-weight: bold">FROM</span> tbl_name;</pre>
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