sqlserver数据库 Schema

//读取数据库中所有的数据库

USE MASTER 

        DECLARE @is_policy_automation_enabled bit

        SET @is_policy_automation_enabled  = (SELECT CONVERT(bit, current_value) FROM msdb.dbo.syspolicy_configuration WHERE name = 'Enabled')

SELECT

dtb.name AS [Database_Name],

'Server[@Name=' + quotename(CAST(serverproperty(N'Servername') AS sysname),'''') + ']' + '/Database[@Name=' + quotename(dtb.name,'''') + ']' AS [Database_Urn],

case when 1=@is_policy_automation_enabled and exists (select * from msdb.dbo.syspolicy_system_health_state where target_query_expression_with_id like 'Server'+ '/Database\[@ID=' + convert(nvarchar(20),dtb.database_id) + '\]%' ESCAPE '\') then 1 else 0 end AS [Database_PolicyHealthState],

dtb.recovery_model AS [Database_RecoveryModel],

suser_sname(dtb.owner_sid) AS [Database_Owner],

              case

              when DATABASEPROPERTY(dtb.name,'IsShutDown') is null then 0x200

              else 0

              end |

              case

              when 1 = dtb.is_in_standby then 0x40

              else 0

              end |

              case

              when 1 = dtb.is_cleanly_shutdown then 0x80

              else 0

              end |

              case dtb.state

              when 1 then 0x2

              when 2 then 0x8

              when 3 then 0x4

              when 4 then 0x10

              when 5 then 0x100

              when 6 then 0x20

              else 1

              end

             AS [Database_Status],

dtb.compatibility_level AS [Database_CompatibilityLevel],

ISNULL(dmi.mirroring_role,0) AS [Database_MirroringRole],

ISNULL(dmi.mirroring_state + 1, 0) AS [Database_MirroringStatus],

dtb.recovery_model AS [RecoveryModel],

dtb.user_access AS [UserAccess],

dtb.is_read_only AS [ReadOnly],

dtb.name AS [Database_DatabaseName2]

FROM

master.sys.databases AS dtb

LEFT OUTER JOIN sys.database_mirroring AS dmi ON dmi.database_id = dtb.database_id



WHERE

(CAST(case when dtb.name in ('master','model','msdb','tempdb') then 1 else dtb.is_distributor end AS bit)=0)

ORDER BY

[Database_Name] ASC

View Code

//读取数据库中所有的表

 1 USE [Nop]

 2         DECLARE @is_policy_automation_enabled bit

 3         SET @is_policy_automation_enabled  = (SELECT CONVERT(bit, current_value)

 4                                               FROM msdb.dbo.syspolicy_configuration

 5                                               WHERE name = 'Enabled')

 6 SELECT

 7 tbl.name AS [Name],

 8 SCHEMA_NAME(tbl.schema_id) AS [Schema],

 9 'Server[@Name=' + quotename(CAST(

10         serverproperty(N'Servername')

11        AS sysname),'''') + ']' + '/Database[@Name=' + quotename(db_name(),'''') + ']' + '/Table[@Name=' + quotename(tbl.name,'''') + ' and @Schema=' + quotename(SCHEMA_NAME(tbl.schema_id),'''') + ']' AS [Urn],

12 case when 1=@is_policy_automation_enabled and exists (select * from msdb.dbo.syspolicy_system_health_state where target_query_expression_with_id like 'Server' + '/Database\[@ID=' + convert(nvarchar(20),dtb.database_id) + '\]'+ '/Table\[@ID=' + convert(nvarchar(20),tbl.object_id) + '\]%' ESCAPE '\') then 1 else 0 end AS [PolicyHealthState],

13 tbl.create_date AS [CreateDate],

14 CAST(

15  case 

16     when tbl.is_ms_shipped = 1 then 1

17     when (

18         select 

19             major_id 

20         from 

21             sys.extended_properties 

22         where 

23             major_id = tbl.object_id and 

24             minor_id = 0 and 

25             class = 1 and 

26             name = N'microsoft_database_tools_support') 

27         is not null then 1

28     else 0

29 end          

30              AS bit) AS [IsSystemObject]

31 FROM

32 master.sys.databases AS dtb,

33 sys.tables AS tbl

34 WHERE

35 (CAST(

36  case 

37     when tbl.is_ms_shipped = 1 then 1

38     when (

39         select 

40             major_id 

41         from 

42             sys.extended_properties 

43         where 

44             major_id = tbl.object_id and 

45             minor_id = 0 and 

46             class = 1 and 

47             name = N'microsoft_database_tools_support') 

48         is not null then 1

49     else 0

50 end          

51              AS bit)=0)and((db_name()='Nop')and(dtb.name=db_name()))

52 ORDER BY

53 [Schema] ASC,[Name] ASC

View Code

//读取数据库表中的字段信息

USE [Nop]

SELECT

clmns.is_identity AS IsIdentity,

clmns.name AS [Name],

'Server[@Name=' + quotename(CAST(

        serverproperty(N'Servername')

       AS sysname),'''') + ']' + '/Database[@Name=' + quotename(db_name(),'''') + ']' + '/Table[@Name=' + quotename(tbl.name,'''') + ' and @Schema=' + quotename(SCHEMA_NAME(tbl.schema_id),'''') + ']' + '/Column[@Name=' + quotename(clmns.name,'''') + ']' AS [Urn],

CAST(ISNULL(cik.index_column_id, 0) AS bit) AS [InPrimaryKey],

CAST(ISNULL((select TOP 1 1 from sys.foreign_key_columns AS colfk where colfk.parent_column_id = clmns.column_id and colfk.parent_object_id = clmns.object_id), 0) AS bit) AS [IsForeignKey],

usrt.name AS [DataType],

ISNULL(baset.name, N'') AS [SystemType],

CAST(CASE WHEN baset.name IN (N'nchar', N'nvarchar') AND clmns.max_length <> -1 THEN clmns.max_length/2 ELSE clmns.max_length END AS int) AS [Length],

CAST(clmns.precision AS int) AS [NumericPrecision],

CAST(clmns.scale AS int) AS [NumericScale],

clmns.is_nullable AS [Nullable],

clmns.is_computed AS [Computed],

ISNULL(s2clmns.name, N'') AS [XmlSchemaNamespaceSchema],

ISNULL(xscclmns.name, N'') AS [XmlSchemaNamespace],

ISNULL( (case clmns.is_xml_document when 1 then 2 else 1 end), 0) AS [XmlDocumentConstraint],

CAST(clmns.is_sparse AS bit) AS [IsSparse],

CAST(clmns.is_column_set AS bit) AS [IsColumnSet],

isnull(comments.text,'') as DefaultValue,

isnull(properties.[value],'') as FieldRemark

FROM

sys.tables AS tbl

INNER JOIN sys.all_columns AS clmns ON clmns.object_id=tbl.object_id

LEFT OUTER JOIN sys.indexes AS ik ON ik.object_id = clmns.object_id and 1=ik.is_primary_key

LEFT OUTER JOIN sys.index_columns AS cik ON cik.index_id = ik.index_id and cik.column_id = clmns.column_id and cik.object_id = clmns.object_id and 0 = cik.is_included_column

LEFT OUTER JOIN sys.types AS usrt ON usrt.user_type_id = clmns.user_type_id

LEFT OUTER JOIN sys.types AS baset ON (baset.user_type_id = clmns.system_type_id and baset.user_type_id = baset.system_type_id) or ((baset.system_type_id = clmns.system_type_id) and (baset.user_type_id = clmns.user_type_id) and (baset.is_user_defined = 0) and (baset.is_assembly_type = 1)) 

LEFT OUTER JOIN sys.xml_schema_collections AS xscclmns ON xscclmns.xml_collection_id = clmns.xml_collection_id

LEFT OUTER JOIN sys.schemas AS s2clmns ON s2clmns.schema_id = xscclmns.schema_id

LEFT OUTER JOIN syscomments AS comments on clmns.default_object_id=comments.id 

LEFT OUTER JOIN sys.extended_properties AS properties on clmns.object_id=properties.major_id AND clmns.column_id = properties.minor_id 



WHERE

(tbl.name='AclRecord' and SCHEMA_NAME(tbl.schema_id)='dbo')

ORDER BY

clmns.column_id ASC

View Code

 

  Oracle数据库Scheme

 

1，连接数据库字符串

string connStr = "Data Source='" + Utility.Database + "';uid='" + Utility.Username + "';pwd='" + Utility.Password + "';"; 

2，通过注册表获取oracle实例名方法；

 public static string[] GetOracleTnsNames() 

        {             

            // 查询注册表，获取oracle服务文件路径

            RegistryKey key = Registry.LocalMachine.OpenSubKey("SOFTWARE").OpenSubKey("ORACLE\\HOME0");

            if (key == null)

            {

                key = Registry.LocalMachine.OpenSubKey("SOFTWARE").OpenSubKey("ORACLE\\KEY_OraClient11g_home1");                

            }

            if (key == null)

            {

                key = Registry.LocalMachine.OpenSubKey("SOFTWARE").OpenSubKey("ORACLE\\KEY_OraDb11g_home1");

            }

            if (key == null)

                return null;

            string home = (string)key.GetValue("ORACLE_HOME"); 

            string file = home + @"\network\ADMIN\tnsnames.ora"; 



            // 解析文件 

            string line; 

               

            ArrayList arr = new ArrayList(); 

            StreamReader sr = new StreamReader(file); 

            while ((line = sr.ReadLine()) != null) 

            { 

                line = line.Trim(); 

                if (line != "") 

                { 

                    char c = line[0];

                    if (c >= 'A' && c <= 'z')

                    {

                        if(line.IndexOf('=')>0)

                            arr.Add(line.Substring(0, line.IndexOf('=')).Trim());

                    }

                } 

            } 

            sr.Close(); 

            // 返回字符串数组 

            return (string[])arr.ToArray(typeof(string));                     

        }

3，读取所有表

select table_name from user_tables order by table_name;

4，读取表字段和类型信息

select 0 Status,

       a.Column_Name,

       a.nullable as Nullable,

       a.data_default as Defaults,

       a.data_type || '(' || a.data_length || ')' as Column_Type,

       b.comments as Comments,

       decode(c.column_name, null, null, 'PRI') as keyflag

  from user_tab_columns a,

       user_col_comments b,

       (select c.table_name, d.column_name

          from user_constraints c, user_cons_columns d

         where c.constraint_name = d.constraint_name

           and c.constraint_type = 'P') c

 where a.table_name = b.table_name(+)

   and a.column_name = b.column_name(+)

   and a.table_name = c.table_name(+)

   and a.column_name = c.column_name(+)

   and a.table_name = 'WWW'  //www是具体的表名

 order by a.column_id

 

有了这些就能根据表结构来生成一些代码了。