All of these can be condensed into a single parameterized query (also known as a prepared statement), as shown in Listing 2.
所有这些查询可以简化为一个参数化查询(也称为一个预准备语句)，如清单2所示。
The good practice is to parameterize a query, which allows the query to be parsed or prepared only once, cached, and reused. So a better way to write the query is to use a named parameter
良好实践是参数化查询，从而仅解析或准备查询一次，然后再缓存并重用它。
Run the SQL query in the prepared statement with the execute ([array input_parameters]) function.
用execute ([array input _ parameters])函数执行预置语句中的SQL查询。
But before accessing the online service, some keywords should be prepared in the query table.
但是，在访问在线服务之前，在查询表中应该准备一些关键字。
We've used a prepared statement in the above to make the process of filling in the data much easier within the query.
我们在上面的代码中使用了一个预编译语句，以使得能够更容易地在查询中填充相关的数据。
The query only needs to be parsed (or prepared) once, but can be executed multiple times with the same or different parameters.
查询只需解析(或准备)一次，但是可以用相同或不同的参数执行多次。
When the query is prepared, the database will analyze, compile and optimize it's plan for executing the query.
当查询准备好后，数据库将分析、编译和优化执行该查询的计划。
EN: Check if new query have prepared.
检查新查询是否准备好。
Documents in the system are prepared at the lexical level, determining the number of words and phrases in a document before it can match to the query presented.
系统中文件在词汇层面的准备情况，确定了在匹配查询之前文档中单词和短语的数量。
Documents in the system are prepared at the lexical level, determining the number of words and phrases in a document before it can match to the query presented.
系统中文件在词汇层面的准备情况，确定了在匹配查询之前文档中单词和短语的数量。
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