可以在SELECT语句中嵌入描述语法吗?

In MySQL, the syntax DESCRIBE can show a table's structure, but it cannot be embedded to normal statement; is there some tricky way to do it?

在MySQL中，语法描述可以显示表的结构，但不能嵌入到普通语句中;有什么办法吗?

For example, this shows the table1 structure, returned as a table (but SQL statement does not think so)

例如，这显示了作为表返回的表1结构(但是SQL语句不这样认为)

DESCRIBE `table1`

But this doesn't work:

但这并不工作:

SELECT * FROM (DESCRIBE `table1`)

Is there a way to enable it?

是否有一种方法可以启用它?

I want to join the "table" created by DESCRIBE syntax, how can I do it?

我想加入描述语法创建的“表”，我怎么做呢?

2 个解决方案

#1

You can use COLUMNS table of INFORMATION_SCHEMA to get expected result as an alternate solution of DESCRIBE table option.

您可以使用INFORMATION_SCHEMA的列表来获得预期结果，作为描述表选项的替代解决方案。

Try this:

试试这个:

SELECT COLUMN_NAME AS `Field`, COLUMN_TYPE AS `Type`, IS_NULLABLE AS `NULL`, 
       COLUMN_KEY AS `Key`, COLUMN_DEFAULT AS `Default`, EXTRA AS `Extra`
FROM information_schema.COLUMNS  
WHERE TABLE_SCHEMA = 'schemaName' AND TABLE_NAME = 'table1';

2 个解决方案

#1

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