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我有一个SQL查询问题。我目前的表如下所示:SQL转置行到列
+--------+------+-----+-----+------+
| hostid | itemname | itemvalue |
+--------+------+-----+-----+------+
| A | 1 | 10 |
+--------+------+-----+-----+------+
| B | 2 | 3 |
+--------+------+-----+-----+------+
我该如何编写一个查询,以便我可以得到像这样的输出?
+--------+--
| A | B |
+--------+--
| 1 | 2 |
+--------+--
| 10 | 3 |
+--------+--
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