395 lines
14 KiB
C#
395 lines
14 KiB
C#
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using System;
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using System.Collections.Generic;
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using System.Data;
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using System.Data.Common;
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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 OracleDbMaintenance : DbMaintenanceProvider
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{
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#region DML
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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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throw new NotSupportedException();
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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 table_name name from user_tables where
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table_name!='HELP'
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AND table_name NOT LIKE '%$%'
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AND table_name NOT LIKE 'LOGMNRC_%'
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AND table_name!='LOGMNRP_CTAS_PART_MAP'
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AND table_name!='LOGMNR_LOGMNR_BUILDLOG'
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AND table_name!='SQLPLUS_PRODUCT_PROFILE'
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";
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}
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}
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protected override string GetViewInfoListSql
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{
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get
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{
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return @"select view_name name from user_views
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WHERE VIEW_name NOT LIKE '%$%'
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AND VIEW_NAME !='PRODUCT_PRIVS'
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AND VIEW_NAME NOT LIKE 'MVIEW_%' ";
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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 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} modify ({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 "create table {1} as select * from {2} where ROWNUM<={0}";
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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 "ALTER TABLE {0} rename column {1} to {2}";
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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 t.table_name from user_tables t where rownum=1";
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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 "";
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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 "";
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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 "";
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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 "comment on column {1}.{0} is '{2}'";
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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 "comment on column {1}.{0} is ''";
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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 * from user_col_comments where Table_Name='{1}' AND COLUMN_NAME='{0}' order by column_name";
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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 "comment on table {0} is '{1}'";
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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 "comment on table {0} is ''";
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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 * from user_tab_comments where Table_Name='{0}'order by Table_Name";
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}
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}
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protected override string RenameTableSql {
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get
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{
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return "alter table {0} rename to {1}";
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}
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}
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#endregion
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#region Methods
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public override bool AddRemark(EntityInfo entity)
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{
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var db = this.Context;
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var columns = entity.Columns.Where(it => it.IsIgnore == false).ToList();
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foreach (var item in columns)
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{
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if (item.ColumnDescription != null)
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{
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//column remak
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if (db.DbMaintenance.IsAnyColumnRemark(item.DbColumnName.ToUpper(), item.DbTableName.ToUpper()))
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{
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db.DbMaintenance.DeleteColumnRemark(item.DbColumnName.ToUpper(), item.DbTableName.ToUpper());
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db.DbMaintenance.AddColumnRemark(item.DbColumnName.ToUpper(), item.DbTableName.ToUpper(), item.ColumnDescription);
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}
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else
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{
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db.DbMaintenance.AddColumnRemark(item.DbColumnName.ToUpper(), item.DbTableName.ToUpper(), item.ColumnDescription);
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}
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}
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}
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//table remak
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if (entity.TableDescription != null)
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{
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if (db.DbMaintenance.IsAnyTableRemark(entity.DbTableName))
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{
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db.DbMaintenance.DeleteTableRemark(entity.DbTableName);
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db.DbMaintenance.AddTableRemark(entity.DbTableName, entity.TableDescription);
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}
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else
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{
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db.DbMaintenance.AddTableRemark(entity.DbTableName, entity.TableDescription);
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}
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}
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return true;
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}
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public override List<DbColumnInfo> GetColumnInfosByTableName(string tableName, bool isCache = true)
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{
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string cacheKey = "DbMaintenanceProvider.GetColumnInfosByTableName." + this.SqlBuilder.GetNoTranslationColumnName(tableName).ToLower();
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cacheKey = GetCacheKey(cacheKey);
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if (!isCache)
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return GetColumnInfosByTableName(tableName);
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else
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return this.Context.Utilities.GetReflectionInoCacheInstance().GetOrCreate(cacheKey,
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() =>
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{
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return GetColumnInfosByTableName(tableName);
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});
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}
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private List<DbColumnInfo> GetColumnInfosByTableName(string tableName)
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{
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string sql = "select * from " + tableName + " WHERE 1=2 ";
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var oldIsEnableLog = this.Context.Ado.IsEnableLogEvent;
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this.Context.Ado.IsEnableLogEvent = false;
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using (DbDataReader reader = (DbDataReader)this.Context.Ado.GetDataReader(sql))
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{
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this.Context.Ado.IsEnableLogEvent = oldIsEnableLog;
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List<DbColumnInfo> result = new List<DbColumnInfo>();
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var schemaTable = reader.GetSchemaTable();
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foreach (System.Data.DataRow row in schemaTable.Rows)
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{
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DbColumnInfo column = new DbColumnInfo()
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{
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TableName = tableName,
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DataType = row["DataType"].ToString().Replace("System.", "").Trim(),
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IsNullable = (bool)row["AllowDBNull"],
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//IsIdentity = (bool)row["IsAutoIncrement"],
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ColumnDescription = GetFieldComment(tableName, row["ColumnName"].ToString()),
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DbColumnName = row["ColumnName"].ToString(),
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//DefaultValue = row["defaultValue"].ToString(),
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IsPrimarykey = GetPrimaryKeyByTableNames(tableName).Any(it => it.Equals(row["ColumnName"].ToString(), StringComparison.CurrentCultureIgnoreCase)),
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Length = row["ColumnSize"].ObjToInt(),
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Scale = row["numericscale"].ObjToInt()
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};
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result.Add(column);
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}
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return result;
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}
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}
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private List<string> GetPrimaryKeyByTableNames(string tableName)
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{
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string cacheKey = "DbMaintenanceProvider.GetPrimaryKeyByTableNames." + this.SqlBuilder.GetNoTranslationColumnName(tableName).ToLower();
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cacheKey = GetCacheKey(cacheKey);
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return this.Context.Utilities.GetReflectionInoCacheInstance().GetOrCreate(cacheKey,
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() =>
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{
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var oldIsEnableLog = this.Context.Ado.IsEnableLogEvent;
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this.Context.Ado.IsEnableLogEvent = false;
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string sql = @" select distinct cu.COLUMN_name KEYNAME from user_cons_columns cu, user_constraints au
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where cu.constraint_name = au.constraint_name
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and au.constraint_type = 'P' and au.table_name = '" + tableName.ToUpper() + @"'";
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var pks = this.Context.Ado.SqlQuery<string>(sql);
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this.Context.Ado.IsEnableLogEvent = oldIsEnableLog;
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return pks;
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});
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}
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public string GetTableComment(string tableName)
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{
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string cacheKey = "DbMaintenanceProvider.GetTableComment." + tableName;
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var comments = this.Context.Utilities.GetReflectionInoCacheInstance().GetOrCreate(cacheKey,
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() =>
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{
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string sql = "SELECT COMMENTS FROM USER_TAB_COMMENTS WHERE TABLE_NAME =@tableName ORDER BY TABLE_NAME";
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var oldIsEnableLog = this.Context.Ado.IsEnableLogEvent;
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this.Context.Ado.IsEnableLogEvent = false;
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var pks = this.Context.Ado.SqlQuery<string>(sql, new { tableName = tableName.ToUpper() });
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this.Context.Ado.IsEnableLogEvent = oldIsEnableLog;
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return pks;
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});
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return comments.HasValue() ? comments.First() : "";
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}
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public string GetFieldComment(string tableName, string filedName)
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{
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string cacheKey = "DbMaintenanceProvider.GetFieldComment." + tableName;
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var comments = this.Context.Utilities.GetReflectionInoCacheInstance().GetOrCreate(cacheKey,
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() =>
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{
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string sql = "SELECT TABLE_NAME AS TableName, COLUMN_NAME AS DbColumnName,COMMENTS AS ColumnDescription FROM user_col_comments WHERE TABLE_NAME =@tableName ORDER BY TABLE_NAME";
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var oldIsEnableLog = this.Context.Ado.IsEnableLogEvent;
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this.Context.Ado.IsEnableLogEvent = false;
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var pks = this.Context.Ado.SqlQuery<DbColumnInfo>(sql, new { tableName = tableName.ToUpper() });
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this.Context.Ado.IsEnableLogEvent = oldIsEnableLog;
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return pks;
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});
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return comments.HasValue() ? comments.First(it => it.DbColumnName.Equals(filedName, StringComparison.CurrentCultureIgnoreCase)).ColumnDescription : "";
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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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if (columns.HasValue())
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{
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foreach (var item in columns)
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{
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if (item.DbColumnName.Equals("GUID", StringComparison.CurrentCultureIgnoreCase) && item.Length == 0)
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{
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item.Length = 50;
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}
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if (item.DataType == "varchar" && item.Length == 0)
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{
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item.Length = 50;
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}
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}
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}
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string sql = GetCreateTableSql(tableName, columns);
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this.Context.Ado.ExecuteCommand(sql);
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|||
|
|
if (isCreatePrimaryKey)
|
|||
|
|
{
|
|||
|
|
var pkColumns = columns.Where(it => it.IsPrimarykey).ToList();
|
|||
|
|
foreach (var item in pkColumns)
|
|||
|
|
{
|
|||
|
|
this.Context.DbMaintenance.AddPrimaryKey(tableName, item.DbColumnName);
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
return true;
|
|||
|
|
}
|
|||
|
|
#endregion
|
|||
|
|
}
|
|||
|
|
}
|