Oracle和/或SQL Server相當於MySQL的DESCRIBE [表]？

Question

我正在尋找從頭開始創建給定表所需的“創建表”語句。 我對主鍵約束，唯一約束，外鍵約束和列名特別感興趣。

我如何在Oracle和/或SQL Server中執行此操作？

奇怪的是，我對數據庫的唯一連接是來自Linux機器的ODBC連接。 雖然對於Oracle我幾乎可以肯定地啟動並運行SQL * Plus。

Answer 1

在Oracle中使用

select dbms_metadata.get_ddl('TABLE','DEMO_ORDERS') from dual;

它會返回類似的東西

  CREATE TABLE "OWNER"."DEMO_ORDERS" 
   (    "ORDER_ID" NUMBER NOT NULL ENABLE, 
    "CUSTOMER_ID" NUMBER NOT NULL ENABLE, 
    "ORDER_TOTAL" NUMBER(8,2), 
    "ORDER_TIMESTAMP" DATE, 
    "USER_ID" NUMBER, 
     CONSTRAINT "DEMO_ORDER_TOTAL_MIN" CHECK (order_total >= 0) ENABLE, 
     CONSTRAINT "DEMO_ORDER_PK" PRIMARY KEY ("ORDER_ID")
  USING INDEX PCTFREE 10 INITRANS 2 MAXTRANS 255 COMPUTE STATISTICS 
  STORAGE(INITIAL 65536 NEXT 1048576 MINEXTENTS 1 MAXEXTENTS 2147483645
  PCTINCREASE 0 FREELISTS 1 FREELIST GROUPS 1 BUFFER_POOL DEFAULT)
  TABLESPACE "USERS"  ENABLE, 
     CONSTRAINT "DEMO_ORDERS_CUSTOMER_ID_FK" FOREIGN KEY ("CUSTOMER_ID")
      REFERENCES "OWNER"."DEMO_CUSTOMERS" ("CUSTOMER_ID") ENABLE, 
     CONSTRAINT "DEMO_ORDERS_USER_ID_FK" FOREIGN KEY ("USER_ID")
      REFERENCES "OWNER"."DEMO_USERS" ("USER_ID") ENABLE
   ) PCTFREE 10 PCTUSED 40 INITRANS 1 MAXTRANS 255 NOCOMPRESS LOGGING
  STORAGE(INITIAL 65536 NEXT 1048576 MINEXTENTS 1 MAXEXTENTS 2147483645
  PCTINCREASE 0 FREELISTS 1 FREELIST GROUPS 1 BUFFER_POOL DEFAULT)
  TABLESPACE "USERS" 

您可以使用各種設置來過濾或排除您不想要的位。

begin
 DBMS_METADATA.SET_TRANSFORM_PARAM(DBMS_METADATA.SESSION_TRANSFORM,'STORAGE',false);
 DBMS_METADATA.SET_TRANSFORM_PARAM(DBMS_METADATA.SESSION_TRANSFORM,'PRETTY',true);
 DBMS_METADATA.SET_TRANSFORM_PARAM(DBMS_METADATA.SESSION_TRANSFORM,
       'SQLTERMINATOR',true);
 DBMS_METADATA.SET_TRANSFORM_PARAM(DBMS_METADATA.SESSION_TRANSFORM, 
       'SEGMENT_ATTRIBUTES',false);
end;

會給

  CREATE TABLE "OWNER"."DEMO_ORDERS" 
   (    "ORDER_ID" NUMBER NOT NULL ENABLE, 
    "CUSTOMER_ID" NUMBER NOT NULL ENABLE, 
    "ORDER_TOTAL" NUMBER(8,2), 
    "ORDER_TIMESTAMP" DATE, 
    "USER_ID" NUMBER, 
     CONSTRAINT "DEMO_ORDER_TOTAL_MIN" CHECK (order_total >= 0) ENABLE, 
     CONSTRAINT "DEMO_ORDER_PK" PRIMARY KEY ("ORDER_ID") ENABLE, 
     CONSTRAINT "DEMO_ORDERS_CUSTOMER_ID_FK" FOREIGN KEY ("CUSTOMER_ID")
      REFERENCES "OWNER"."DEMO_CUSTOMERS" ("CUSTOMER_ID") ENABLE, 
     CONSTRAINT "DEMO_ORDERS_USER_ID_FK" FOREIGN KEY ("USER_ID")
      REFERENCES "OWNER"."DEMO_USERS" ("USER_ID") ENABLE
   ) ;

Answer 2

在SQL Server中，最簡單的方法是右鍵單擊表 - >腳本表為 - >創建到 - >新查詢窗口。 它會創建這樣的東西，我在AdventureWorks數據庫中選擇了HumanResources.EmployeeAddress表

USE [AdventureWorks]
GO

/****** Object:  Table [HumanResources].[EmployeeAddress]    Script Date: 09/01/2010 20:05:14 ******/
SET ANSI_NULLS ON
GO

SET QUOTED_IDENTIFIER ON
GO

CREATE TABLE [HumanResources].[EmployeeAddress](
    [EmployeeID] [int] NOT NULL,
    [AddressID] [int] NOT NULL,
    [rowguid] [uniqueidentifier] ROWGUIDCOL  NOT NULL,
    [ModifiedDate] [datetime] NOT NULL,
 CONSTRAINT [PK_EmployeeAddress_EmployeeID_AddressID] PRIMARY KEY CLUSTERED 
(
    [EmployeeID] ASC,
    [AddressID] ASC
)WITH (PAD_INDEX  = OFF, STATISTICS_NORECOMPUTE  = OFF, IGNORE_DUP_KEY = OFF, ALLOW_ROW_LOCKS  = ON, ALLOW_PAGE_LOCKS  = ON) ON [PRIMARY]
) ON [PRIMARY]

GO

EXEC sys.sp_addextendedproperty @name=N'MS_Description', @value=N'Primary key. Foreign key to Employee.EmployeeID.' , @level0type=N'SCHEMA',@level0name=N'HumanResources', @level1type=N'TABLE',@level1name=N'EmployeeAddress', @level2type=N'COLUMN',@level2name=N'EmployeeID'
GO

EXEC sys.sp_addextendedproperty @name=N'MS_Description', @value=N'Primary key. Foreign key to Address.AddressID.' , @level0type=N'SCHEMA',@level0name=N'HumanResources', @level1type=N'TABLE',@level1name=N'EmployeeAddress', @level2type=N'COLUMN',@level2name=N'AddressID'
GO

EXEC sys.sp_addextendedproperty @name=N'MS_Description', @value=N'ROWGUIDCOL number uniquely identifying the record. Used to support a merge replication sample.' , @level0type=N'SCHEMA',@level0name=N'HumanResources', @level1type=N'TABLE',@level1name=N'EmployeeAddress', @level2type=N'COLUMN',@level2name=N'rowguid'
GO

EXEC sys.sp_addextendedproperty @name=N'MS_Description', @value=N'Date and time the record was last updated.' , @level0type=N'SCHEMA',@level0name=N'HumanResources', @level1type=N'TABLE',@level1name=N'EmployeeAddress', @level2type=N'COLUMN',@level2name=N'ModifiedDate'
GO

EXEC sys.sp_addextendedproperty @name=N'MS_Description', @value=N'Cross-reference table mapping employees to their address(es).' , @level0type=N'SCHEMA',@level0name=N'HumanResources', @level1type=N'TABLE',@level1name=N'EmployeeAddress'
GO

EXEC sys.sp_addextendedproperty @name=N'MS_Description', @value=N'Primary key (clustered) constraint' , @level0type=N'SCHEMA',@level0name=N'HumanResources', @level1type=N'TABLE',@level1name=N'EmployeeAddress', @level2type=N'CONSTRAINT',@level2name=N'PK_EmployeeAddress_EmployeeID_AddressID'
GO

ALTER TABLE [HumanResources].[EmployeeAddress]  WITH CHECK ADD  CONSTRAINT [FK_EmployeeAddress_Address_AddressID] FOREIGN KEY([AddressID])
REFERENCES [Person].[Address] ([AddressID])
GO

ALTER TABLE [HumanResources].[EmployeeAddress] CHECK CONSTRAINT [FK_EmployeeAddress_Address_AddressID]
GO

EXEC sys.sp_addextendedproperty @name=N'MS_Description', @value=N'Foreign key constraint referencing Address.AddressID.' , @level0type=N'SCHEMA',@level0name=N'HumanResources', @level1type=N'TABLE',@level1name=N'EmployeeAddress', @level2type=N'CONSTRAINT',@level2name=N'FK_EmployeeAddress_Address_AddressID'
GO

ALTER TABLE [HumanResources].[EmployeeAddress]  WITH CHECK ADD  CONSTRAINT [FK_EmployeeAddress_Employee_EmployeeID] FOREIGN KEY([EmployeeID])
REFERENCES [HumanResources].[Employee] ([EmployeeID])
GO

ALTER TABLE [HumanResources].[EmployeeAddress] CHECK CONSTRAINT [FK_EmployeeAddress_Employee_EmployeeID]
GO

EXEC sys.sp_addextendedproperty @name=N'MS_Description', @value=N'Foreign key constraint referencing Employee.EmployeeID.' , @level0type=N'SCHEMA',@level0name=N'HumanResources', @level1type=N'TABLE',@level1name=N'EmployeeAddress', @level2type=N'CONSTRAINT',@level2name=N'FK_EmployeeAddress_Employee_EmployeeID'
GO

ALTER TABLE [HumanResources].[EmployeeAddress] ADD  CONSTRAINT [DF_EmployeeAddress_rowguid]  DEFAULT (newid()) FOR [rowguid]
GO

EXEC sys.sp_addextendedproperty @name=N'MS_Description', @value=N'Default constraint value of NEWID()' , @level0type=N'SCHEMA',@level0name=N'HumanResources', @level1type=N'TABLE',@level1name=N'EmployeeAddress', @level2type=N'CONSTRAINT',@level2name=N'DF_EmployeeAddress_rowguid'
GO

ALTER TABLE [HumanResources].[EmployeeAddress] ADD  CONSTRAINT [DF_EmployeeAddress_ModifiedDate]  DEFAULT (getdate()) FOR [ModifiedDate]
GO

EXEC sys.sp_addextendedproperty @name=N'MS_Description', @value=N'Default constraint value of GETDATE()' , @level0type=N'SCHEMA',@level0name=N'HumanResources', @level1type=N'TABLE',@level1name=N'EmployeeAddress', @level2type=N'CONSTRAINT',@level2name=N'DF_EmployeeAddress_ModifiedDate'
GO

還有sp_help，但它沒有給你一個腳本

sp_help 'HumanResources.EmployeeAddress'

以編程方式，您可以使用.NET或SSIS中的SQL Server管理對象（SMO）

Answer 3

好的 - 我有點困惑。 你的頭銜說了一件事，你的問題又說了另一件事。

對於標題中的問題：

Oracle：使用“describe table”

SQL Server sp_columns表或sp_help表以獲取更多信息。

對於您的書面問題：

Oracle： http ： //www.adp-gmbh.ch/ora/sql/create_table.html

SQL Server： http ： //msdn.microsoft.com/en-us/library/aa258255（SQL.80）.aspx