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Update Oracle

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This commit is contained in:
sunkaixuan 2017-08-28 00:29:00 +08:00
parent 52aedd787e
commit 2203eb5a52
3 changed files with 69 additions and 41 deletions
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2
Src/Asp.Net/OracleTest/Demos/1_Query.cs
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@ -157,7 +157,7 @@ namespace OrmTest.Demo
var getAll = db.Queryable<Student>().ToList();
var getAllOrder = db.Queryable<Student>().OrderBy(it => it.Id).OrderBy(it => it.Name, OrderByType.Desc).ToList();
var getId = db.Queryable<Student>().Select(it => it.Id).ToList();
var getNew = db.Queryable<Student>().Where(it => it.Id == 1).Select(it => new { id = SqlFunc.IIF(it.Id == 0, 1, it.Id), it.Name, it.SchoolId }).ToList();
// var getNew = db.Queryable<Student>().Where(it => it.Id == 1).Select(it => new { id = SqlFunc.IIF(it.Id == 0, 1, it.Id), it.Name, it.SchoolId }).ToList();
var getAllNoLock = db.Queryable<Student>().With(SqlWith.NoLock).ToList();
var getByPrimaryKey = db.Queryable<Student>().InSingle(2);
var getSingleOrDefault = db.Queryable<Student>().Single();

1
Src/Asp.Net/SqlSugar/Entities/DbColumnInfo.cs
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@ -20,5 +20,6 @@ namespace SqlSugar
public bool IsPrimarykey { get; set; }
public object Value { get; set; }
public int DecimalDigits { get; set; }
public int Scale { get; set; }
}
}

107
Src/Asp.Net/SqlSugar/Realization/Oracle/DbMaintenance/OracleDbMaintenance.cs
View File

@ -1,5 +1,7 @@
using System;
using System.Collections.Generic;
using System.Data;
using System.Data.Common;
using System.Linq;
using System.Text;
@ -12,46 +14,7 @@ namespace SqlSugar
{
get
{
string sql = @"SELECT Sysobjects.name AS TableName,
syscolumns.Id AS TableId,
syscolumns.name AS DbColumnName,
systypes.name AS DataType,
syscolumns.length AS [Length],
sys.extended_properties.[value] AS [ColumnDescription],
syscomments.text AS DefaultValue,
syscolumns.isnullable AS IsNullable,
columnproperty(syscolumns.id,syscolumns.name,'IsIdentity')as IsIdentity,
(CASE
WHEN EXISTS
(
select 1
from sysindexes i
join sysindexkeys k on i.id = k.id and i.indid = k.indid
join sysobjects o on i.id = o.id
join syscolumns c on i.id=c.id and k.colid = c.colid
where o.xtype = 'U'
and exists(select 1 from sysobjects where xtype = 'PK' and name = i.name)
and o.name=sysobjects.name and c.name=syscolumns.name
) THEN 1
ELSE 0
END) AS IsPrimaryKey
FROM syscolumns
INNER JOIN systypes ON syscolumns.xtype = systypes.xtype
LEFT JOIN sysobjects ON syscolumns.id = sysobjects.id
LEFT OUTER JOIN sys.extended_properties ON (sys.extended_properties.minor_id = syscolumns.colid
AND sys.extended_properties.major_id = syscolumns.id)
LEFT OUTER JOIN syscomments ON syscolumns.cdefault = syscomments.id
WHERE syscolumns.id IN
(SELECT id
FROM sysobjects
WHERE xtype IN('u',
'v') )
AND (systypes.name <> 'sysname')
AND sysobjects.name='{0}'
AND systypes.name<>'geometry'
AND systypes.name<>'geography'
ORDER BY syscolumns.colid";
return sql;
return null;
}
}
protected override string GetTableInfoListSql
@ -201,5 +164,69 @@ namespace SqlSugar
}
}
#endregion
#region Methods
public override List<DbColumnInfo> GetColumnInfosByTableName(string tableName)
{
string cacheKey = "DbMaintenanceProvider.GetColumnInfosByTableName." + this.SqlBuilder.GetNoTranslationColumnName(tableName).ToLower();
cacheKey = GetCacheKey(cacheKey);
return this.Context.RewritableMethods.GetCacheInstance<List<DbColumnInfo>>().Func(cacheKey,
(cm, key) =>
{
return cm[cacheKey];
}, (cm, key) =>
{
string sql = "select * from " + tableName + " WHERE 1=2 ";
var oldIsEnableLog = this.Context.Ado.IsEnableLogEvent;
this.Context.Ado.IsEnableLogEvent = false;
using (DbDataReader reader = (DbDataReader)this.Context.Ado.GetDataReader(sql))
{
this.Context.Ado.IsEnableLogEvent = oldIsEnableLog;
List<DbColumnInfo> result = new List<DbColumnInfo>();
var schemaTable = reader.GetSchemaTable();
foreach (DataRow row in schemaTable.Rows)
{
DbColumnInfo column = new DbColumnInfo()
{
TableName = tableName,
DataType = row["DataType"].ToString().Replace("System.", "").Trim(),
IsNullable = (bool)row["AllowDBNull"],
//IsIdentity = (bool)row["IsAutoIncrement"],
ColumnDescription = null,
DbColumnName = row["ColumnName"].ToString(),
//DefaultValue = row["defaultValue"].ToString(),
IsPrimarykey = GetPrimaryKeyByTableNames(tableName).Any(it=>it.Equals(row["ColumnName"].ToString(), StringComparison.CurrentCultureIgnoreCase)),
Length = row["ColumnSize"].ObjToInt(),
Scale = row["numericscale"].ObjToInt()
};
result.Add(column);
}
return result;
}
});
}
private List<string> GetPrimaryKeyByTableNames(string tableName)
{
string cacheKey = "DbMaintenanceProvider.GetPrimaryKeyByTableNames." + this.SqlBuilder.GetNoTranslationColumnName(tableName).ToLower();
cacheKey = GetCacheKey(cacheKey);
return this.Context.RewritableMethods.GetCacheInstance<List<string>>().Func(cacheKey,
(cm, key) =>
{
return cm[cacheKey];
}, (cm, key) =>
{
var oldIsEnableLog = this.Context.Ado.IsEnableLogEvent;
string sql = @" select cu.COLUMN_name KEYNAME from user_cons_columns cu, user_constraints au
where cu.constraint_name = au.constraint_name
and au.constraint_type = 'P' and au.table_name = '" +tableName.ToUpper()+ @"'";
var pks = this.Context.Ado.SqlQuery<string>(sql);
this.Context.Ado.IsEnableLogEvent = oldIsEnableLog;
return pks;
});
}
#endregion
}
}