/// <summary>
/// 获取在 where 语句中使用的函表达式及其参数
/// </summary>
/// <param name="ConIndex">此参数无效</param>
/// <param name="SubSql">函数表达式</param>
/// <returns>函数表达式的参数</returns>
protected override ODAScript GetWhereSubstring()
{
ODAScript sql = new ODAScript();
if (_FuncType == Func.Exists)
{
var sSql = _FuncCmd.GetSelectSql(_FunColumnList.ToArray());
sql.Merge(sSql);
sql.SqlScript.Clear();
sql.SqlScript.Append(_FuncName).Append(" ( ").Append(sSql.SqlScript.ToString()).Append(")");
return(sql);
}
else if (_FuncType == Func.Normal) ///形如：having UserFunc(@params1,@params2) > 0
{
var wSql = base.GetWhereSubstring();
var fSql = this.GetNormalFunctionSql();
wSql.SqlScript.Replace(_FuncName, fSql.SqlScript.ToString());
sql.Merge(fSql);
sql.SqlScript.Clear();
sql.SqlScript.Append(wSql.SqlScript.ToString());
return(sql);
}
else if (_FuncType == Func.Express)
{
var wSql = base.GetWhereSubstring(); ///形如：having count(*) > 0
wSql.ParamList.InsertRange(0, _ExpressPrms);
return(wSql);
}
else
{
throw new ODAException(40007, string.Format("{0} Function not for Select", _FuncName));
}
}
/// <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();
}
}
