private List <SColumn> GetBaseColumns(DbConn dbconn, string tableid)
{
string sql = @"select SC.object_id,SC.name,SC.column_id,SC.user_type_id,ST.name as typename,
SC.max_length,SC.precision,SC.scale,SC.is_nullable,
SC.is_identity,IC.seed_value,IC.increment_value,IC.last_value,
SC.default_object_id,DFC.definition,EP.value as des
from sys.all_columns SC
left join sys.types ST on SC.user_type_id=ST.user_type_id
left join sys.identity_columns IC on SC.object_id=IC.object_id and SC.column_id=IC.column_id
left join sys.default_constraints DFC on SC.default_object_id=DFC.object_id
left join sys.extended_properties EP on EP.minor_id=SC.column_id and SC.object_id=EP.major_id and EP.name='MS_Description'
where SC.object_id=@objid";
DataTable tbcolumns = dbconn.SqlToDataTable(sql, new { objid = tableid });
List <SColumn> columns = new List <SColumn>();
foreach (DataRow dr in tbcolumns.Rows)
{
string desc = dr["des"].ToString();
FieldType fieldtype = DbFieldTypeHelper.SqlServerGetFieldType(
dr["typename"].ToString(),
Convert.ToInt32(dr["precision"]),
Convert.ToInt32(dr["scale"]),
Convert.ToInt32(dr["max_length"]));
columns.Add(new SColumn()
{
name = dr["name"].ToString(),
allownull = Utils.Converter.ObjToBool(dr["is_nullable"]),
description = desc,
title = string.IsNullOrEmpty(desc) ? dr["name"].ToString() : desc,
isidentity = Utils.Converter.ObjToBool("is_identity"),
filedtype = fieldtype
});
}
return(columns);
}
public void ToLocalTable(STable other, List <SqlToSqlModel> sqltypemodel, bool autofieldtypechange)
{
foreach (var a in other.columns)
{
foreach (var b in sqltypemodel)
{
if (a.filedtype.name == b.typename1)
{
a.filedtype = DbFieldTypeHelper.SqlServerGetFieldType(b.typename2, a.filedtype.precision, a.filedtype.scale, a.filedtype.maxlength);
break;
}
}
throw new Exception(a.filedtype.name + "不存在转化");
}
}
public void ToLocalTable(STable other, List <SqlToSqlModel> sqltypemodel, bool autofieldtypechange)
{
foreach (var a in other.columns)
{
bool exist = false;
foreach (var b in sqltypemodel)
{
if (a.filedtype.name == b.typename1)
{
a.filedtype = DbFieldTypeHelper.MySqlGetFieldType(other.name, a.name, b.typename2, a.filedtype.precision, a.filedtype.scale, a.filedtype.maxlength, autofieldtypechange);
exist = true;
break;
}
}
if (!exist)
{
throw new Exception(a.filedtype.name + "不存在转化");
}
}
List <DbStructure.SIndex> removeindexes = new List <SIndex>();
for (int i = 0; i < other.indexes.Count; i++)
{
for (int j = i + 1; j < other.indexes.Count; j++)
{
bool rowissame = true;
if (other.indexes[i].columns.Count == other.indexes[j].columns.Count)
{
foreach (var a in other.indexes[i].columns)
{
if (!other.indexes[j].columns.ContainsKey(a.Key))
{
rowissame = false;
break;
}
}
}
else
{
rowissame = false;
}
if (rowissame)
{
if (other.indexes[j].isprimarykey || other.indexes[j].isunique)
{
if (!removeindexes.Contains(other.indexes[i]))
{
removeindexes.Add(other.indexes[i]);
}
}
else
{
if (!removeindexes.Contains(other.indexes[j]))
{
removeindexes.Add(other.indexes[j]);
}
}
}
}
}
foreach (var a in removeindexes)
{
other.indexes.Remove(a);
}
}
