/// <summary>
/// “不存在”子查询函数
/// </summary>
/// <param name="Cmd"></param>
/// <param name="Cols"></param>
/// <returns></returns>
public ODAColumns NotExists(ODACmd Cmd, params ODAColumns[] Cols)
{
_FuncCmd = Cmd;
_FunColumnList.AddRange(Cols);
_FuncName = " NOT EXISTS ";
_FuncType = Func.Exists;
return(this);
}
public ODAColumns NotIn(ODACmd Cmd, ODAColumns Col)
{
if (Cmd == null || System.Object.ReferenceEquals(Col, null))
{
throw new ODAException(20014, "Cmd and Col Args Can't be null");
}
_InColumn = Col;
_InCmd = Cmd;
return(SetCondition(CmdConditionSymbol.NOTIN, null));
}
/// <summary>
/// 连接查询
/// </summary>
/// <param name="JoinCmd"></param>
/// <param name="Join"></param>
/// <param name="On"></param>
/// <returns></returns>
protected virtual ODACmd Join(ODACmd JoinCmd, string Join, params IODAColumns[] On)
{
if (JoinCmd == this)
{
throw new ODAException(10002, "Inner Join Instance Can't be itselft");
}
JoinCmd.Where(On);
_JoinCmd.Add(new SqlJoinScript()
{
JoinCmd = JoinCmd, JoinScript = Join
});
return(this);
}
private void ODAColumnsInit(ODACmd Cmd, string ColumnName, ODAdbType DBDataType, int Size, string ColumnComment, bool IsRequired, ParameterDirection Direction)
{
if (Cmd == null)
{
throw new ODAException(20003, string.IsNullOrEmpty(_ColumnComment) ? _ColumnName : _ColumnComment + "Cmd can't be null");
}
_Cmd = Cmd;
if (!String.IsNullOrEmpty(ColumnName))
{
_ColumnName = ColumnName;
}
_DBDataType = DBDataType;
_Size = Size;
_ColumnComment = ColumnComment;
_PDirection = Direction;
_IsRequired = IsRequired;
}
/// <summary>
/// insert () select
/// </summary>
/// <param name="SelectCmd"></param>
/// <param name="Columns">select的字段</param>
/// <returns></returns>
public virtual bool Insert(ODACmd SelectCmd, params IODAColumns[] Columns)
{
try
{
var sql = new ODAScript()
{
ScriptType = SQLType.Insert,
};
sql.SqlScript.Append("INSERT INTO ").Append(this.CmdName).Append("(");
string Column = "";
for (int i = 0; i < Columns.Length; i++)
{
if (string.IsNullOrWhiteSpace(Columns[i].AliasName))
{
Column += Columns[i].ColumnName + ",";
}
else
{
Column += Columns[i].AliasName + ",";
}
}
sql.SqlScript.Append(Column.Remove(Column.Length - 1, 1)).Append(") ");
var sSql = SelectCmd.GetSelectSql(Columns);
sql.Merge(sSql);
var db = this.GetDBAccess(sql);
if (db == null)
{
throw new ODAException(10016, "ODACmd Insert 没有执行程序");
}
var prms = sql.ParamList.ToArray();
return(db.ExecuteSQL(sql.SqlScript.ToString(), prms) > 0);
}
finally
{
this.Clear();
}
}
/// <summary>
/// 内连接查询
/// </summary>
/// <param name="JoinCmd">要连接的表</param>
/// <param name="On">连接条件</param>
/// <returns></returns>
public virtual ODACmd InnerJoin(ODACmd JoinCmd, params IODAColumns[] On)
{
return(Join(JoinCmd, " INNER JOIN ", On));
}
/// <summary>
/// 右连接查询
/// </summary>
/// <param name="JoinCmd">要连接的表</param>
/// <param name="On">连接条件</param>
/// <returns></returns>
public virtual ODACmd RightJoin(ODACmd JoinCmd, params IODAColumns[] On)
{
return(Join(JoinCmd, " RIGHT JOIN ", On));
}
/// <summary>
/// 左连接查询
/// </summary>
/// <param name="JoinCmd">要连接的表</param>
/// <param name="On">连接条件</param>
/// <returns></returns>
public virtual ODACmd LeftJoin(ODACmd JoinCmd, params IODAColumns[] On)
{
return(Join(JoinCmd, " LEFT JOIN ", On));
}
/// <summary>
/// 数据库函数
/// </summary>
/// <param name="Cmd"></param>
internal ODAFunction(ODACmd Cmd)
: base(Cmd, "User_Function", ODAdbType.OVarchar, 4000)
{
}
public ODAColumns(ODACmd Cmd, string ColumnName, ODAdbType DBDataType, int Size, string ColumnComment, bool IsRequired, ParameterDirection Direction)
{
this.ODAColumnsInit(Cmd, ColumnName, DBDataType, Size, ColumnComment, IsRequired, Direction);
}
public ODAColumns(ODACmd Cmd, string ColumnName, ODAdbType DBDataType, int Size, bool IsRequired)
{
this.ODAColumnsInit(Cmd, ColumnName, DBDataType, Size, null, IsRequired, ParameterDirection.Input);
}
public ODAColumns(ODACmd Cmd, string ColumnName, ODAdbType DBDataType, int Size)
{
this.ODAColumnsInit(Cmd, ColumnName, DBDataType, Size, null, false, ParameterDirection.Input);
}
/// <summary>
/// 创建ODA字段，默认 OVarchar（2000）,
/// </summary>
/// <param name="Cmd"></param>
/// <param name="ColumnName"></param>
public ODAColumns(ODACmd Cmd, string ColumnName)
{
this.ODAColumnsInit(Cmd, ColumnName, ODAdbType.OVarchar, 2000, null, false, ParameterDirection.Input);
}
internal ODAView(ODACmd Cmd, params IODAColumns[] Cols)
{
_Cmd = Cmd;
Alias = Cmd.GetAlias();
SelectCols = Cols;
}
public new ORMCmd <T> InnerJoin(ODACmd JoinCmd, params IODAColumns[] On)
{
return((ORMCmd <T>)base.InnerJoin(JoinCmd, On));
}