40 lines
684 B
Markdown
40 lines
684 B
Markdown
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# EXECUTE
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## 摘要
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``` sql
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EXECUTE statement_name [ USING parameter1 [ , parameter2, ... ] ]
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```
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## 说明
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执行名称为 `statement_name` 的预编译语句。在 `USING` 子句中定义参数值。
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## 示例
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预编译并执行一个不具有参数的查询：
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PREPARE my_select1 FROM
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SELECT name FROM nation;
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``` sql
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EXECUTE my_select1;
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```
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预编译并执行一个具有两个参数的查询：
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PREPARE my_select2 FROM
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SELECT name FROM nation WHERE regionkey = ? and nationkey < ?;
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``` sql
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EXECUTE my_select2 USING 1, 3;
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```
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这等效于：
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SELECT name FROM nation WHERE regionkey = 1 AND nationkey < 3;
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## 另请参见
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[PREPARE](./prepare.md) |