BLOB到MySQL中的长文本转换 [英] BLOB to long text conversion in MySQL

问题描述

我在MySQL中有一列，其数据类型为BLOB.我正在使用Crystal Reports生成某些报告.

I have a column in MySQL which has the datatype BLOB. I am using Crystal Reports for some reports.

我的问题是，如果BLOB列包含除图片以外的数据，它将显示空白数据.

My problem is BLOB column will show blank data if it contains data other than a picture.

我从数据库获得的数据仅为文本.因此，我想将BLOB列转换为其他数据类型，这些数据类型将占用BLOB对象之类的更多数据.

The data I am getting from DB is text only. So I want to convert the BLOB column to some other datatype which will occupy more data like BLOB object.

请提出我可以建议的数据类型.

Please suggest what datatype I can conevrt.

我尝试了此查询，但是它不起作用.

I tried this query but it is not working.

SELECT CAST(key_initiatives AS MEDIUMTEXT) key_init FROM OBJSETTING_FOCUS_ON_CUSTOMER

推荐答案

尝试一下，

SELECT CAST(key_initiatives AS CHAR(1000) CHARACTER SET utf8 )  AS key_init FROM OBJSETTING_FOCUS_ON_CUSTOMER

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