405 lines
14 KiB
C#
405 lines
14 KiB
C#
using System;
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using System.Collections.Generic;
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using System.Linq;
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using System.Text;
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namespace SqlSugar
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{
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public class SqlServerDbMaintenance : DbMaintenanceProvider
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{
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#region DML
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protected override string GetDataBaseSql
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{
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get
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{
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return "SELECT NAME FROM MASTER.DBO.SYSDATABASES ORDER BY NAME";
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}
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}
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protected override string GetColumnInfosByTableNameSql
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{
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get
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{
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string sql = @"SELECT sysobjects.name AS TableName,
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syscolumns.Id AS TableId,
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syscolumns.name AS DbColumnName,
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systypes.name AS DataType,
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syscolumns.length AS [Length],
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sys.extended_properties.[value] AS [ColumnDescription],
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syscomments.text AS DefaultValue,
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syscolumns.isnullable AS IsNullable,
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columnproperty(syscolumns.id,syscolumns.name,'IsIdentity')as IsIdentity,
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(CASE
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WHEN EXISTS
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(
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select 1
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from sysindexes i
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join sysindexkeys k on i.id = k.id and i.indid = k.indid
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join sysobjects o on i.id = o.id
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join syscolumns c on i.id=c.id and k.colid = c.colid
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where o.xtype = 'U'
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and exists(select 1 from sysobjects where xtype = 'PK' and name = i.name)
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and o.name=sysobjects.name and c.name=syscolumns.name
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) THEN 1
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ELSE 0
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END) AS IsPrimaryKey
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FROM syscolumns
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INNER JOIN systypes ON syscolumns.xtype = systypes.xtype
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LEFT JOIN sysobjects ON syscolumns.id = sysobjects.id
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LEFT OUTER JOIN sys.extended_properties ON (sys.extended_properties.minor_id = syscolumns.colid
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AND sys.extended_properties.major_id = syscolumns.id)
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LEFT OUTER JOIN syscomments ON syscolumns.cdefault = syscomments.id
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WHERE syscolumns.id IN
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(SELECT id
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FROM sysobjects
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WHERE xtype IN('u',
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'v') )
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AND (systypes.name <> 'sysname')
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AND sysobjects.name='{0}'
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AND systypes.name<>'geometry'
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AND systypes.name<>'geography'
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ORDER BY syscolumns.colid";
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return sql;
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}
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}
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protected override string GetTableInfoListSql
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{
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get
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{
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return @"SELECT s.Name,Convert(varchar(max),tbp.value) as Description
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FROM sysobjects s
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LEFT JOIN sys.extended_properties as tbp ON s.id=tbp.major_id and tbp.minor_id=0 AND (tbp.Name='MS_Description' OR tbp.Name is null) WHERE s.xtype IN('U') ";
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}
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}
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protected override string GetViewInfoListSql
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{
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get
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{
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return @"SELECT s.Name,Convert(varchar(max),tbp.value) as Description
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FROM sysobjects s
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LEFT JOIN sys.extended_properties as tbp ON s.id=tbp.major_id and tbp.minor_id=0 AND (tbp.Name='MS_Description' OR tbp.Name is null) WHERE s.xtype IN('V') ";
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}
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}
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#endregion
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#region DDL
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protected override string CreateDataBaseSql
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{
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get
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{
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return @"create database {0} ";
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}
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}
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protected override string AddPrimaryKeySql
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{
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get
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{
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return "ALTER TABLE {0} ADD CONSTRAINT {1} PRIMARY KEY({2})";
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}
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}
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protected override string AddColumnToTableSql
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{
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get
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{
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return "ALTER TABLE {0} ADD {1} {2}{3} {4} {5} {6}";
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}
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}
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protected override string AlterColumnToTableSql
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{
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get
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{
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return "ALTER TABLE {0} ALTER COLUMN {1} {2}{3} {4} {5} {6}";
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}
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}
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protected override string BackupDataBaseSql
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{
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get
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{
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return @"USE master;BACKUP DATABASE {0} TO disk = '{1}'";
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}
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}
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protected override string CreateTableSql
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{
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get
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{
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return "CREATE TABLE {0}(\r\n{1})";
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}
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}
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protected override string CreateTableColumn
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{
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get
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{
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return "{0} {1}{2} {3} {4} {5}";
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}
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}
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protected override string TruncateTableSql
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{
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get
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{
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return "TRUNCATE TABLE {0}";
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}
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}
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protected override string BackupTableSql
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{
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get
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{
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return "SELECT TOP {0} * INTO {1} FROM {2}";
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}
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}
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protected override string DropTableSql
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{
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get
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{
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return "DROP TABLE {0}";
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}
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}
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protected override string DropColumnToTableSql
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{
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get
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{
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return "ALTER TABLE {0} DROP COLUMN {1}";
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}
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}
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protected override string DropConstraintSql
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{
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get
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{
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return "ALTER TABLE {0} DROP CONSTRAINT {1}";
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}
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}
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protected override string RenameColumnSql
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{
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get
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{
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return "exec sp_rename '{0}.{1}','{2}','column';";
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}
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}
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protected override string AddColumnRemarkSql
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{
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get
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{
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return "EXECUTE sp_addextendedproperty N'MS_Description', '{2}', N'user', N'dbo', N'table', N'{1}', N'column', N'{0}'"; ;
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}
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}
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protected override string DeleteColumnRemarkSql
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{
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get
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{
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return "EXEC sp_dropextendedproperty 'MS_Description','user',dbo,'table','{1}','column',{0}";
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}
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}
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protected override string IsAnyColumnRemarkSql
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{
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get
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{
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return @"SELECT" +
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" A.name AS table_name," +
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" B.name AS column_name," +
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" C.value AS column_description" +
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" FROM sys.tables A" +
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" LEFT JOIN sys.extended_properties C ON C.major_id = A.object_id" +
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" LEFT JOIN sys.columns B ON B.object_id = A.object_id AND C.minor_id = B.column_id" +
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" INNER JOIN sys.schemas SC ON SC.schema_id = A.schema_id AND SC.name = 'dbo'" +
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" WHERE A.name = '{1}' and b.name = '{0}'";
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}
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}
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protected override string AddTableRemarkSql
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{
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get
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{
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return "EXECUTE sp_addextendedproperty N'MS_Description', '{1}', N'user', N'dbo', N'table', N'{0}', NULL, NULL";
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}
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}
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protected override string DeleteTableRemarkSql
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{
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get
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{
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return "EXEC sp_dropextendedproperty 'MS_Description','user',dbo,'table','{0}' ";
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}
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}
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protected override string IsAnyTableRemarkSql
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{
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get
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{
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return @"SELECT C.class_desc
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FROM sys.tables A
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LEFT JOIN sys.extended_properties C ON C.major_id = A.object_id
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INNER JOIN sys.schemas SC ON SC.schema_id=A.schema_id AND SC.name='dbo'
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WHERE A.name = '{0}' AND minor_id=0";
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}
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}
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protected override string RenameTableSql
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{
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get
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{
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return "EXEC sp_rename '{0}','{1}'";
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}
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}
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protected override string CreateIndexSql
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{
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get
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{
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return "CREATE NONCLUSTERED INDEX Index_{0}_{2} ON {0}({1})";
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}
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}
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protected override string AddDefaultValueSql
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{
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get
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{
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return "alter table {0} ADD DEFAULT '{2}' FOR {1}";
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}
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}
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protected override string IsAnyIndexSql
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{
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get
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{
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return "select count(*) from sys.indexes where name='{0}'";
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}
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}
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#endregion
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#region Check
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protected override string CheckSystemTablePermissionsSql
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{
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get
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{
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return "select top 1 id from sysobjects";
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}
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}
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#endregion
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#region Scattered
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protected override string CreateTableNull
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{
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get
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{
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return "NULL";
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}
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}
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protected override string CreateTableNotNull
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{
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get
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{
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return "NOT NULL";
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}
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}
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protected override string CreateTablePirmaryKey
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{
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get
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{
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return "PRIMARY KEY";
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}
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}
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protected override string CreateTableIdentity
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{
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get
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{
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return "IDENTITY(1,1)";
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}
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}
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#endregion
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#region Methods
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/// <summary>
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///by current connection string
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/// </summary>
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/// <param name="databaseDirectory"></param>
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/// <returns></returns>
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public override bool CreateDatabase(string databaseName, string databaseDirectory = null)
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{
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if (databaseDirectory != null)
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{
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if (!FileHelper.IsExistDirectory(databaseDirectory))
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{
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FileHelper.CreateDirectory(databaseDirectory);
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}
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}
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var oldDatabaseName = this.Context.Ado.Connection.Database;
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var connection = this.Context.CurrentConnectionConfig.ConnectionString;
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connection = connection.Replace(oldDatabaseName, "master");
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var newDb = new SqlSugarClient(new ConnectionConfig()
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{
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DbType = this.Context.CurrentConnectionConfig.DbType,
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IsAutoCloseConnection = true,
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ConnectionString = connection
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});
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if (!GetDataBaseList(newDb).Any(it => it.Equals(databaseName, StringComparison.CurrentCultureIgnoreCase)))
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{
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var sql = CreateDataBaseSql;
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if (databaseDirectory.HasValue())
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{
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sql += @"on primary
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(
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name = N'{0}',
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filename = N'{1}\{0}.mdf',
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size = 10mb,
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maxsize = 100mb,
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filegrowth = 1mb
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),
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(
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name = N'{0}_ndf',
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filename = N'{1}\{0}.ndf',
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size = 10mb,
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maxsize = 100mb,
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filegrowth = 10 %
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)
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log on
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(
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name = N'{0}_log',
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filename = N'{1}\{0}.ldf',
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size = 100mb,
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maxsize = 1gb,
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filegrowth = 10mb
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); ";
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}
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newDb.Ado.ExecuteCommand(string.Format(sql, databaseName, databaseDirectory));
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}
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return true;
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}
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public override bool CreateTable(string tableName, List<DbColumnInfo> columns, bool isCreatePrimaryKey = true)
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{
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tableName = this.SqlBuilder.GetTranslationTableName(tableName);
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string sql = GetCreateTableSql(tableName, columns);
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this.Context.Ado.ExecuteCommand(sql);
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if (isCreatePrimaryKey)
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{
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var pkColumns = columns.Where(it => it.IsPrimarykey).ToList();
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if (pkColumns.Count > 1)
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{
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this.Context.DbMaintenance.AddPrimaryKeys(tableName, pkColumns.Select(it => it.DbColumnName).ToArray());
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}
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else
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{
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foreach (var item in pkColumns)
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{
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this.Context.DbMaintenance.AddPrimaryKey(tableName, item.DbColumnName);
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}
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}
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}
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return true;
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}
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public override bool RenameColumn(string tableName, string oldColumnName, string newColumnName)
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{
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tableName = this.SqlBuilder.GetTranslationTableName(tableName);
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oldColumnName = this.SqlBuilder.GetTranslationColumnName(oldColumnName);
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newColumnName = this.SqlBuilder.GetNoTranslationColumnName(newColumnName);
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string sql = string.Format(this.RenameColumnSql, tableName, oldColumnName, newColumnName);
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this.Context.Ado.ExecuteCommand(sql);
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return true;
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}
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#endregion
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}
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}
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