如何使用 SQL 在 Sybase ASE 中获取列的类型

Question

我可以使用什么 SQL 来获取 Sybase ASE 中的列类型？

Answer 1

Within any database you could use special stored procedure

sp_columns '<tableName>', null, null, '<colName>'

and of course, to display all columns with extensive info about them for given table:

sp_columns '<tableName>'

Answer 2

Given a table named "fruit" and a column named "color":

select obj.name as "table", col.name as "column", type.name as "type"
  from sysobjects obj
  join syscolumns col on obj.id=col.id
  join systypes type on col.type=type.type and col.usertype = type.usertype
 where obj.type = "U"               -- means 'U'ser table
   and user_name(obj.uid) = 'dbo'   -- or whatever the user is who owns/created the table
   and obj.name = 'fruit' 
   and col.name = 'color'