Mysql：从select语句创建列

Question

I was wondering if you could create columns based on the result from a Select statement.

Table 1:

availableColumns
-----------------
column1 -> record 1
column2 -> record 2
column3 -> record 3

So if I did a Select availableColumns From Table1, how could I create a table that has then the following structure, the results must be used to create columns:

column1 | column2 | column3

If I try:

CREATE TABLE test SELECT availableColumns FROM table1

I get the following:

Column
------
Column1
Column2
Column3

So instead of columns, I get my result as rows which I don't want.

Thanks in advance :)

Answer 1

You can have a list of columns for a specific table by selecting them from Information Schema table

SELECT `COLUMN_NAME` 
FROM `INFORMATION_SCHEMA`.`COLUMNS` 
WHERE `TABLE_SCHEMA`='databasename' 
AND `TABLE_NAME`='tablename';

To create the table just use it

CREATE TABLE test  SELECT `COLUMN_NAME` FROM `INFORMATION_SCHEMA`.`COLUMNS` WHERE `TABLE_SCHEMA`='databasename' AND `TABLE_NAME`='tablename'; 

Just change 'databasename' and 'tablename' to fit your actual database and table