blocks|key|2530008|text|这样如何：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|2530009|select+column_name,data_type,+character_maximum_length,+numeric_precision+
from+information_schema.columns+
where+table_name+=+'USERS';|code-block|syntax|javascript|2530010|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

how about:

<pre><code>select column_name,data_type, character_maximum_length, numeric_precision 
from information_schema.columns 
where table_name = 'USERS';
</code></pre>

blocks|key|1498207|text|变通解决方案：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1498208|CREATE+TEMPORARY+TABLE+temp+SELECT+id,name,md5(password)+FROM+USERS;
DESCRIBE+temp;
DROP+TEMPORARY+TABLE+temp;|code-block|syntax|javascript|1498209|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

Workaround solution:

<pre><code>CREATE TEMPORARY TABLE temp SELECT id,name,md5(password) FROM USERS;
DESCRIBE temp;
DROP TEMPORARY TABLE temp;
</code></pre>

blocks|key|2614053|text|这|type|unstyled|depth|inlineStyleRanges|entityRanges|data|2614054|SELECT+*+FROM+INFORMATION_SCHEMA.COLUMNS+where+TABLE_SCHEMA+=+'schema'+and+TABLE_NAME+=+'table'|code-block|syntax|javascript|2614055|返回大量信息。|2614056|desc++INFORMATION_SCHEMA.COLUMNS
%2B--------------------------%2B---------------------%2B------%2B-----%2B---------%2B-------%2B
%7C+Field++++++++++++++++++++%7C+Type++++++++++++++++%7C+Null+%7C+Key+%7C+Default+%7C+Extra+%7C
%2B--------------------------%2B---------------------%2B------%2B-----%2B---------%2B-------%2B
%7C+TABLE_CATALOG++++++++++++%7C+varchar(512)++++++++%7C+YES++%7C+++++%7C+NULL++++%7C+++++++%7C
%7C+TABLE_SCHEMA+++++++++++++%7C+varchar(64)+++++++++%7C+NO+++%7C+++++%7C+++++++++%7C+++++++%7C
%7C+TABLE_NAME+++++++++++++++%7C+varchar(64)+++++++++%7C+NO+++%7C+++++%7C+++++++++%7C+++++++%7C
%7C+COLUMN_NAME++++++++++++++%7C+varchar(64)+++++++++%7C+NO+++%7C+++++%7C+++++++++%7C+++++++%7C
%7C+ORDINAL_POSITION+++++++++%7C+bigint(21)+unsigned+%7C+NO+++%7C+++++%7C+0+++++++%7C+++++++%7C
%7C+COLUMN_DEFAULT+++++++++++%7C+longtext++++++++++++%7C+YES++%7C+++++%7C+NULL++++%7C+++++++%7C
%7C+IS_NULLABLE++++++++++++++%7C+varchar(3)++++++++++%7C+NO+++%7C+++++%7C+++++++++%7C+++++++%7C
%7C+DATA_TYPE++++++++++++++++%7C+varchar(64)+++++++++%7C+NO+++%7C+++++%7C+++++++++%7C+++++++%7C
%7C+CHARACTER_MAXIMUM_LENGTH+%7C+bigint(21)+unsigned+%7C+YES++%7C+++++%7C+NULL++++%7C+++++++%7C
%7C+CHARACTER_OCTET_LENGTH+++%7C+bigint(21)+unsigned+%7C+YES++%7C+++++%7C+NULL++++%7C+++++++%7C
%7C+NUMERIC_PRECISION++++++++%7C+bigint(21)+unsigned+%7C+YES++%7C+++++%7C+NULL++++%7C+++++++%7C
%7C+NUMERIC_SCALE++++++++++++%7C+bigint(21)+unsigned+%7C+YES++%7C+++++%7C+NULL++++%7C+++++++%7C
%7C+CHARACTER_SET_NAME+++++++%7C+varchar(32)+++++++++%7C+YES++%7C+++++%7C+NULL++++%7C+++++++%7C
%7C+COLLATION_NAME+++++++++++%7C+varchar(32)+++++++++%7C+YES++%7C+++++%7C+NULL++++%7C+++++++%7C
%7C+COLUMN_TYPE++++++++++++++%7C+longtext++++++++++++%7C+NO+++%7C+++++%7C+NULL++++%7C+++++++%7C
%7C+COLUMN_KEY+++++++++++++++%7C+varchar(3)++++++++++%7C+NO+++%7C+++++%7C+++++++++%7C+++++++%7C
%7C+EXTRA++++++++++++++++++++%7C+varchar(27)+++++++++%7C+NO+++%7C+++++%7C+++++++++%7C+++++++%7C
%7C+PRIVILEGES+++++++++++++++%7C+varchar(80)+++++++++%7C+NO+++%7C+++++%7C+++++++++%7C+++++++%7C
%7C+COLUMN_COMMENT+++++++++++%7C+varchar(255)++++++++%7C+NO+++%7C+++++%7C+++++++++%7C+++++++%7C
%2B--------------------------%2B---------------------%2B------%2B-----%2B---------%2B-------%2B|2614057|entityMap^0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|M|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|N|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|O|8|@]|9|@]|A|$]]|$1|I|3|J|5|D|7|P|8|@]|9|@]|A|$E|F]]|$1|K|3|-4|5|6|7|Q|8|@]|9|@]|A|$]]]|L|$]]

I'm looking for the equivalent of 

<pre><code>DESCRIBE USERS;
</code></pre>

for a sql statment, eg:

<pre><code>SELECT id,name,md5(password) FROM USERS
</code></pre>

Primarily because I am interested in what data types get returned.

How do I do this?

Describe a sql statement return

翻译质量差，导致语言生硬或混乱。

没有提供实际的解决方法或示例。

解答不清晰，无法理解或解决问题。

页面排版不美观，阅读体验差。

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我正在寻找等同于DESCRIBE USERS;对于sql语句，例如：SELECT id,name,md5(password) FROM USERS主要是因为我对返回哪些数据类型感兴趣。我该怎么做呢？

问描述sql语句返回
EN

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问描述sql语句返回EN