给定oracle查询的sql server兼容查询

Question

我希望Microsoft SQL服务器查询对应于以下Oracle查询

//get schema of a table
desc tablename;

//get the names of all tables
select * from tab;

Answer 1

您可以通过元数据表访问该信息.检查此链接.

INFORMATION_SCHEMA.Tables - >允许您访问表名

INFORMATION_SCHEMA.Columns - >允许您访问列名

这是另一个链接,其中包含完整的目录表列表.

1. INFORMATION_SCHEMA.CHECK_CONSTRAINTS
2. INFORMATION_SCHEMA.COLUMN_DOMAIN_USAGE
3. INFORMATION_SCHEMA.COLUMN_PRIVILEGES
4. INFORMATION_SCHEMA.COLUMNS
5. INFORMATION_SCHEMA.CONSTRAINT_COLUMN_USAGE
6. INFORMATION_SCHEMA.CONSTRAINT_TABLE_USAGE
7. INFORMATION_SCHEMA.DOMAIN_CONSTRAINTS
8. INFORMATION_SCHEMA.DOMAINS
9. INFORMATION_SCHEMA.KEY_COLUMN_USAGE
10. INFORMATION_SCHEMA.PARAMETERS
11. INFORMATION_SCHEMA.REFERENCIAL_CONSTRAINTS
12. INFORMATION_SCHEMA.ROUTINE_COLUMNS
13. INFORMATION_SCHEMA.ROUTINES
14. INFORMATION_SCHEMA.SCHEMA_DATA
15. INFORMATION_SCHEMA.TABLE_CONSTRAINTS
16. INFORMATION_SCHEMA.TABLE_PRIVILEGES
17. INFORMATION_SCHEMA.TABLES
18. INFORMATION_SCHEMA.VIEW_COLUMN_USAGE
19. INFORMATION_SCHEMA.VIEW_TABLE_USAGE
20. INFORMATION_SCHEMA.VIEWS

但请记住,您可能需要特殊权限才能访问这些表/视图.

您可以尝试另一种方法是使用ODBC,Java,.NET或任何其他编程语言或库来访问元数据信息.他们可以通过API完全访问它.