Question

我正在尝试执行以下查询，该查询基于少量条件来获取不同的数据。在这里，我在cookie字段上使用了类似运算符，而我的cookie字段的数据类型很长。

select * from (
               select to_char(audit_logs.REQUEST_TIME, 'dd/mm/yyyy HH24:mm:ss') as event_time,
                    audit_logs.CLIENT_REQUEST as client_request,
                    audit_logs.RESPONSE_CODE as responsecode,
                    audit_logs.SIZEOFOBJECT as sizeofobject,
                    audit_logs.COOKIES as cookies,
                    audit_logs.ENV as env,
                    audit_logs.USERID as user_id,
                    audit_logs.POST_DATA as post_data,
                    audit_logs.AUTHSCHEME as authscheme,
                    audit_logs.AUTHMARKET as authmarket,
                    audit_logs.X_REQUESTED_WITH as x_requested_with,
                    audit_logs.METHOD_TYPE as method_type,
                    audit_logs.HOSTNAME as hostname,
                    audit_logs.SESSION_COOKIES as session_cookies,
                    audit_logs.X_FORWARDED_FOR as x_forwarded_for,
                    audit_logs.USER_AGENT as user_agent,
                    audit_logs.GEOIP_COUNTRY_CODE as country_code
               from audit_logs
               where
                    REQUEST_TIME >= to_date(:fromdate,'dd/mm/yyyy')
                    and REQUEST_TIME <= to_date(:todate,'dd/mm/yyyy HH24:MI:SS')
                    and COOKIES LIKE '%TANID=%'
               order by REQUEST_TIME DESC)
where ROWNUM <= :recordslimit
order by event_time DESC;

在执行上述查询时，我遇到以下错误：

ORA-00932: inconsistent datatypes: expected CHAR got LONG
00932. 00000 -  "inconsistent datatypes: expected %s got %s"

有人可以解决该问题吗？

注意：由于我的数据库中包含大量数据，因此更改数据类型将是一项耗时的工作。

Answer 1

您正在查询中定义三个命名参数-fromdate，todate和recordslimit。该查询在fromdate和todate参数上使用to_date，因此它们应为char数据类型。因此，在这些参数上传递实际值时，请检查您正在使用的实际数据类型。可能还会有其他捕获物，但这是我唯一想到的捕获物。

如何在oracle中将长数据转换为char || ORA-00932：数据类型不一致：预期的CHAR长

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