如何在sqlalchemy中执行LIKE查询? [英] how to execute LIKE query in sqlalchemy?

问题描述

我正在使用sqlalchemy从表中获取数据. 现在，从名为audit_trail_table的表中获取所有记录的工作正在按预期进行.

I am using sqlalchemy to fetch data from tables. Right now fetching all records from a table called audit_trail_table is working as expected.

select_stmt = select([self.audit_trail_table]).where(self.audit_trail_table.c.id == int(id))
row = conn.execute(select_stmt).fetchone()

现在，我希望对多个列执行LIKE查询，如下所示:

Now I wish to execute LIKE queries on multiple columns as follows:

filter_query = #(some value which will work as a filter_query while fetching )records
filter_stmt = select([self.audit_trail_table]).where(self.audit_trail_table.c.first_name like '%' + filter_query + '%' or self.audit_trail_table.c.last_name like '%')

但是在LIKE上会出错.我该如何实现?

But it gives an error at LIKE. How can I achieve this?

推荐答案

请像操作符一样使用

select([self.audit_trail_table]).where(self.audit_trail_table.c.first_name.like('%' + filter_query + '%') or self.audit_trail_table.c.last_name.like('%abc%'))

http://docs. sqlalchemy.org/en/rel_0_9/core/sqlelement.html#sqlalchemy.sql.operators.ColumnOperators.like

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