小编Fer*_*zBM的帖子

你能否告诉我何时选择strartgy over polymorphsim,反之亦然.

非常感谢!

SQL 表：

sys.types sysobjects syscolumns sysindexes INFORMATION_SCHEMA.COLUMNS

你能不能帮我把它转换成 oracle 语法

DECLARE @tableUpdateCount tinyint
set @tableUpdateCount = 0
/* 
* CALCDETL.ALIAS - 1
*/
if exists (select * from syscolumns where id = (select id from sysobjects where name = 'ABC' and type = 'U') and name = 'ALIAS' and xusertype = (select user_type_id from sys.types where name = 'nvarchar') and prec = 20)
begin
    set @tableUpdateCount = @tableUpdateCount + 1
    print ' '
    print '1.  ABC.ALIAS exists'
end

是否有任何工具可以轻松地将 sql-to-oracle …