public IDataProvider GetDataProvider(IEnumerable <NamedValue> attributes)
{
var versionText = attributes.FirstOrDefault(_ => _.Name == "version");
var version = versionText.Value switch
{
var x when x.StartsWith("7.3.") || x == "7.3" || x == "7_3" => DB2iSeriesVersion.V7_3,
var x when x.StartsWith("7.2.") || x == "7.2" || x == "7_2" => DB2iSeriesVersion.V7_2,
_ => DB2iSeriesVersion.V7_1
};
var providerType = attributes.FirstOrDefault(_ => _.Name == "assemblyName")?.Value switch
{
#if NETFRAMEWORK
DB2iSeriesAccessClientProviderAdapter.AssemblyName => DB2iSeriesProviderType.AccessClient,
#endif
DB2.DB2ProviderAdapter.AssemblyName => DB2iSeriesProviderType.DB2,
OleDbProviderAdapter.AssemblyName => DB2iSeriesProviderType.OleDb,
OdbcProviderAdapter.AssemblyName => DB2iSeriesProviderType.Odbc,
null => DB2iSeriesProviderOptions.Defaults.ProviderType,
var x => throw ExceptionHelper.InvalidAssemblyName(x)
};
var mapGuidAsString = attributes.Any(x => x.Name == Constants.ProviderFlags.MapGuidAsString);
return(DB2iSeriesTools.GetDataProvider(version, providerType, new DB2iSeriesMappingOptions(mapGuidAsString)));
}
}
}
protected override BulkCopyRowsCopied MultipleRowsCopy <T>(DataConnection dataConnection, BulkCopyOptions options, IEnumerable <T> source)
{
if ((options.MaxBatchSize ?? int.MaxValue) > MAX_ALLOWABLE_BATCH_SIZE)
{
options.MaxBatchSize = MAX_ALLOWABLE_BATCH_SIZE;
}
return(MultipleRowsCopy2(dataConnection, options, source, " FROM " + DB2iSeriesTools.iSeriesDummyTableName(dataConnection)));
}
public DB2iSeriesDataProvider AutoDetectDataProvider(string connectionString)
{
try
{
var providerType = GetProviderType(connectionString);
var minLevel = GetServerMinLevel(connectionString, providerType);
return(DB2iSeriesTools.GetDataProvider(minLevel, providerType, new DB2iSeriesMappingOptions(mapGuidAsString)));
}
catch (Exception e)
{
throw ExceptionHelper.ConnectionStringParsingFailure(e);
}
}
private ServerVersion GetServerVersion(string connectionString, DB2iSeriesProviderType providerType)
{
using (var conn = (DbConnection)DB2iSeriesTools.GetDataProvider(DB2iSeriesVersion.V7_1, providerType, DB2iSeriesMappingOptions.Default).CreateConnection(connectionString))
{
conn.Open();
var serverVersionParts = conn.ServerVersion.Substring(0, 5).Split('.');
var major = int.Parse(serverVersionParts.First());
var minor = int.Parse(serverVersionParts.Last());
var patchLevel = GetMaxPatchLevel(conn, major, minor);
return(new ServerVersion(major, minor, patchLevel));
}
}
protected override void BuildSelectClause(SelectQuery selectQuery)
{
if (selectQuery.HasUnion)
{
// need to set any column aliases as the same as the top level one
var topquery = selectQuery;
while (topquery.ParentSelect != null && topquery.ParentSelect.HasUnion)
{
topquery = topquery.ParentSelect;
}
var alia = selectQuery.Select.Columns.Select(c => c.Alias).ToArray();
selectQuery.Unions.ForEach((u) =>
{
int colNo = 0;
u.SelectQuery.Select.Columns
.ForEach(c =>
{
c.Alias = alia[colNo];
colNo++;
});
});
}
if (selectQuery.From.Tables.Count == 0)
{
AppendIndent().AppendLine("SELECT");
BuildColumns(selectQuery);
AppendIndent().AppendLine($"FROM {DB2iSeriesTools.iSeriesDummyTableName()} FETCH FIRST 1 ROW ONLY");
}
else
{
base.BuildSelectClause(selectQuery);
}
}
protected override void OnConnectionTypeCreated(Type connectionType)
{
DB2iSeriesTypes.ConnectionType = connectionType;
dynamic ass = connectionType.Assembly;
DB2iSeriesTypes.BigInt.Type = ass.GetType(DB2iSeriesTools.AssemblyName + ".iDB2BigInt", true);
DB2iSeriesTypes.Binary.Type = ass.GetType(DB2iSeriesTools.AssemblyName + ".iDB2Binary", true);
DB2iSeriesTypes.Blob.Type = ass.GetType(DB2iSeriesTools.AssemblyName + ".iDB2Blob", true);
DB2iSeriesTypes.Char.Type = ass.GetType(DB2iSeriesTools.AssemblyName + ".iDB2Char", true);
DB2iSeriesTypes.CharBitData.Type = ass.GetType(DB2iSeriesTools.AssemblyName + ".iDB2CharBitData", true);
DB2iSeriesTypes.Clob.Type = ass.GetType(DB2iSeriesTools.AssemblyName + ".iDB2Clob", true);
DB2iSeriesTypes.Date.Type = ass.GetType(DB2iSeriesTools.AssemblyName + ".iDB2Date", true);
DB2iSeriesTypes.DataLink.Type = ass.GetType(DB2iSeriesTools.AssemblyName + ".iDB2DataLink", true);
DB2iSeriesTypes.DbClob.Type = ass.GetType(DB2iSeriesTools.AssemblyName + ".iDB2DbClob", true);
DB2iSeriesTypes.DecFloat16.Type = ass.GetType(DB2iSeriesTools.AssemblyName + ".iDB2DecFloat16", true);
DB2iSeriesTypes.DecFloat34.Type = ass.GetType(DB2iSeriesTools.AssemblyName + ".iDB2DecFloat34", true);
DB2iSeriesTypes.Decimal.Type = ass.GetType(DB2iSeriesTools.AssemblyName + ".iDB2Decimal", true);
DB2iSeriesTypes.Double.Type = ass.GetType(DB2iSeriesTools.AssemblyName + ".iDB2Double", true);
DB2iSeriesTypes.Graphic.Type = ass.GetType(DB2iSeriesTools.AssemblyName + ".iDB2Graphic", true);
DB2iSeriesTypes.Integer.Type = ass.GetType(DB2iSeriesTools.AssemblyName + ".iDB2Integer", true);
DB2iSeriesTypes.Numeric.Type = ass.GetType(DB2iSeriesTools.AssemblyName + ".iDB2Numeric", true);
DB2iSeriesTypes.Real.Type = ass.GetType(DB2iSeriesTools.AssemblyName + ".iDB2Real", true);
DB2iSeriesTypes.RowId.Type = ass.GetType(DB2iSeriesTools.AssemblyName + ".iDB2Rowid", true);
DB2iSeriesTypes.SmallInt.Type = ass.GetType(DB2iSeriesTools.AssemblyName + ".iDB2SmallInt", true);
DB2iSeriesTypes.Time.Type = ass.GetType(DB2iSeriesTools.AssemblyName + ".iDB2Time", true);
DB2iSeriesTypes.TimeStamp.Type = ass.GetType(DB2iSeriesTools.AssemblyName + ".iDB2TimeStamp", true);
DB2iSeriesTypes.VarBinary.Type = ass.GetType(DB2iSeriesTools.AssemblyName + ".iDB2VarBinary", true);
DB2iSeriesTypes.VarChar.Type = ass.GetType(DB2iSeriesTools.AssemblyName + ".iDB2VarChar", true);
DB2iSeriesTypes.VarCharBitData.Type = ass.GetType(DB2iSeriesTools.AssemblyName + ".iDB2VarCharBitData", true);
DB2iSeriesTypes.VarGraphic.Type = ass.GetType(DB2iSeriesTools.AssemblyName + ".iDB2VarGraphic", true);
DB2iSeriesTypes.Xml.Type = ass.GetType(DB2iSeriesTools.AssemblyName + ".iDB2Xml", true);
SetProviderField(DB2iSeriesTypes.BigInt, typeof(long), "GetiDB2BigInt");
SetProviderField(DB2iSeriesTypes.Binary, typeof(byte[]), "GetiDB2Binary");
SetProviderField(DB2iSeriesTypes.Blob, typeof(byte[]), "GetiDB2Blob");
SetProviderField(DB2iSeriesTypes.Char, typeof(string), "GetiDB2Char");
SetProviderField(DB2iSeriesTypes.CharBitData, typeof(byte[]), "GetiDB2CharBitData");
SetProviderField(DB2iSeriesTypes.Clob, typeof(string), "GetiDB2Clob");
SetProviderField(DB2iSeriesTypes.DataLink, typeof(string), "GetiDB2DataLink");
SetProviderField(DB2iSeriesTypes.Date, typeof(System.DateTime), "GetiDB2Date");
SetProviderField(DB2iSeriesTypes.DbClob, typeof(string), "GetiDB2DbClob");
SetProviderField(DB2iSeriesTypes.DecFloat16, typeof(decimal), "GetiDB2DecFloat16");
SetProviderField(DB2iSeriesTypes.DecFloat34, typeof(decimal), "GetiDB2DecFloat34");
SetProviderField(DB2iSeriesTypes.Decimal, typeof(decimal), "GetiDB2Decimal");
SetProviderField(DB2iSeriesTypes.Double, typeof(double), "GetiDB2Double");
SetProviderField(DB2iSeriesTypes.Graphic, typeof(string), "GetiDB2Graphic");
SetProviderField(DB2iSeriesTypes.Integer, typeof(int), "GetiDB2Integer");
SetProviderField(DB2iSeriesTypes.Numeric, typeof(decimal), "GetiDB2Numeric");
SetProviderField(DB2iSeriesTypes.Real, typeof(float), "GetiDB2Real");
SetProviderField(DB2iSeriesTypes.RowId, typeof(byte[]), "GetiDB2RowId");
SetProviderField(DB2iSeriesTypes.SmallInt, typeof(short), "GetiDB2SmallInt");
SetProviderField(DB2iSeriesTypes.Time, typeof(System.DateTime), "GetiDB2Time");
SetProviderField(DB2iSeriesTypes.TimeStamp, typeof(System.DateTime), "GetiDB2TimeStamp");
SetProviderField(DB2iSeriesTypes.VarBinary, typeof(byte[]), "GetiDB2VarBinary");
SetProviderField(DB2iSeriesTypes.VarChar, typeof(string), "GetiDB2VarChar");
SetProviderField(DB2iSeriesTypes.VarCharBitData, typeof(byte[]), "GetiDB2VarCharBitData");
SetProviderField(DB2iSeriesTypes.VarGraphic, typeof(string), "GetiDB2VarGraphic");
SetProviderField(DB2iSeriesTypes.Xml, typeof(string), "GetiDB2Xml");
MappingSchema.AddScalarType(DB2iSeriesTypes.BigInt, GetNullValue(DB2iSeriesTypes.BigInt), true, DataType.Int64);
MappingSchema.AddScalarType(DB2iSeriesTypes.Binary, GetNullValue(DB2iSeriesTypes.Binary), true, DataType.Binary);
MappingSchema.AddScalarType(DB2iSeriesTypes.Blob, GetNullValue(DB2iSeriesTypes.Blob), true, DataType.Blob);
MappingSchema.AddScalarType(DB2iSeriesTypes.Char, GetNullValue(DB2iSeriesTypes.Char), true, DataType.Char);
MappingSchema.AddScalarType(DB2iSeriesTypes.CharBitData, GetNullValue(DB2iSeriesTypes.CharBitData), true, DataType.Binary);
MappingSchema.AddScalarType(DB2iSeriesTypes.Clob, GetNullValue(DB2iSeriesTypes.Clob), true, DataType.NText);
MappingSchema.AddScalarType(DB2iSeriesTypes.DataLink, GetNullValue(DB2iSeriesTypes.DataLink), true, DataType.NText);
MappingSchema.AddScalarType(DB2iSeriesTypes.Date, GetNullValue(DB2iSeriesTypes.Date), true, DataType.Date);
MappingSchema.AddScalarType(DB2iSeriesTypes.DbClob, GetNullValue(DB2iSeriesTypes.DbClob), true, DataType.NText);
MappingSchema.AddScalarType(DB2iSeriesTypes.DecFloat16, GetNullValue(DB2iSeriesTypes.DecFloat16), true, DataType.Decimal);
MappingSchema.AddScalarType(DB2iSeriesTypes.DecFloat34, GetNullValue(DB2iSeriesTypes.DecFloat34), true, DataType.Decimal);
MappingSchema.AddScalarType(DB2iSeriesTypes.Decimal, GetNullValue(DB2iSeriesTypes.Decimal), true, DataType.Decimal);
MappingSchema.AddScalarType(DB2iSeriesTypes.Double, GetNullValue(DB2iSeriesTypes.Double), true, DataType.Double);
MappingSchema.AddScalarType(DB2iSeriesTypes.Graphic, GetNullValue(DB2iSeriesTypes.Graphic), true, DataType.NText);
MappingSchema.AddScalarType(DB2iSeriesTypes.Integer, GetNullValue(DB2iSeriesTypes.Integer), true, DataType.Int32);
MappingSchema.AddScalarType(DB2iSeriesTypes.Numeric, GetNullValue(DB2iSeriesTypes.Numeric), true, DataType.Decimal);
MappingSchema.AddScalarType(DB2iSeriesTypes.Real, GetNullValue(DB2iSeriesTypes.Real), true, DataType.Single);
MappingSchema.AddScalarType(DB2iSeriesTypes.RowId, GetNullValue(DB2iSeriesTypes.RowId), true, DataType.VarBinary);
MappingSchema.AddScalarType(DB2iSeriesTypes.SmallInt, GetNullValue(DB2iSeriesTypes.SmallInt), true, DataType.Int16);
MappingSchema.AddScalarType(DB2iSeriesTypes.Time, GetNullValue(DB2iSeriesTypes.Time), true, DataType.Time);
MappingSchema.AddScalarType(DB2iSeriesTypes.TimeStamp, GetNullValue(DB2iSeriesTypes.TimeStamp), true, DataType.DateTime2);
MappingSchema.AddScalarType(DB2iSeriesTypes.VarBinary, GetNullValue(DB2iSeriesTypes.VarBinary), true, DataType.VarBinary);
MappingSchema.AddScalarType(DB2iSeriesTypes.VarChar, GetNullValue(DB2iSeriesTypes.VarChar), true, DataType.VarChar);
MappingSchema.AddScalarType(DB2iSeriesTypes.VarCharBitData, GetNullValue(DB2iSeriesTypes.VarCharBitData), true, DataType.VarBinary);
MappingSchema.AddScalarType(DB2iSeriesTypes.VarGraphic, GetNullValue(DB2iSeriesTypes.VarGraphic), true, DataType.NText);
MappingSchema.AddScalarType(DB2iSeriesTypes.Xml, GetNullValue(DB2iSeriesTypes.Xml), true, DataType.Xml);
_setBlob = GetSetParameter(connectionType, "iDB2Parameter", "iDB2DbType", "iDB2DbType", "iDB2Blob");
if (DataConnection.TraceSwitch.TraceInfo)
{
DataConnection.WriteTraceLine(DataReaderType.AssemblyEx().FullName, DataConnection.TraceSwitch.DisplayName);
}
DB2iSeriesTools.Initialized();
}
protected override IDbConnection CreateConnectionInternal(string connectionString)
{
NamingConvention = DB2iSeriesTools.GetDB2iSeriesNamingConvention(connectionString);
return(base.CreateConnectionInternal(connectionString));
}
protected override void BuildInsertOrUpdateQuery(SqlInsertOrUpdateStatement insertOrUpdate) =>
BuildInsertOrUpdateQueryAsMerge(insertOrUpdate, $"FROM {DB2iSeriesTools.iSeriesDummyTableName()} FETCH FIRST 1 ROW ONLY");
protected override void BuildCommand(SqlStatement selectQuery, int commandNumber) =>
StringBuilder.AppendLine($"SELECT {DB2iSeriesTools.IdentityColumnSql} FROM {DB2iSeriesTools.iSeriesDummyTableName()}");
protected override List <TableInfo> GetTables(DataConnection dataConnection)
{
var sql = $@"
Select
CAST(CURRENT_SERVER AS VARCHAR(128)) AS Catalog_Name
, Table_Schema
, Table_Name
, Table_Text
, Table_Type
, System_Table_Schema
From {dataConnection.GetTableName("QSYS2", "SYSTABLES")}
Where Table_Type In('L', 'P', 'T', 'V')
And System_Table_Schema in ('{GetLibList(dataConnection)}')
Order By System_Table_Schema, System_Table_Name
" ;
var defaultSchema = dataConnection.Execute <string>("select current_schema from " + DB2iSeriesTools.iSeriesDummyTableName(dataConnection));
Func <IDataReader, TableInfo> drf = (IDataReader dr) => new TableInfo
{
CatalogName = dr["Catalog_Name"].ToString().TrimEnd(),
Description = dr["Table_Text"].ToString().TrimEnd(),
IsDefaultSchema = dr["System_Table_Schema"].ToString().TrimEnd() == defaultSchema,
IsView = new[] { "L", "V" }.Contains <string>(dr["Table_Type"].ToString()),
SchemaName = dr["Table_Schema"].ToString().TrimEnd(),
TableID = dataConnection.Connection.Database + "." + dr["Table_Schema"].ToString().TrimEnd() + "." + dr["Table_Name"].ToString().TrimEnd(),
TableName = dr["Table_Name"].ToString().TrimEnd()
};
var _list = dataConnection.Query(drf, sql).ToList();
return(_list);
}
protected override List <ProcedureInfo> GetProcedures(DataConnection dataConnection)
{
var sql = $@"
Select
CAST(CURRENT_SERVER AS VARCHAR(128)) AS Catalog_Name
, Function_Type
, Routine_Definition
, Routine_Name
, Routine_Schema
, Routine_Type
, Specific_Name
, Specific_Schema
From {dataConnection.GetTableName("QSYS2", "SYSROUTINES")}
Where Specific_Schema in('{GetLibList(dataConnection)}')
Order By Specific_Schema, Specific_Name
" ;
//And {GetSchemaFilter("col.TBCREATOR")}
var defaultSchema = dataConnection.Execute <string>("select current_schema from " + DB2iSeriesTools.iSeriesDummyTableName(dataConnection));
ProcedureInfo drf(IDataReader dr)
{
return(new ProcedureInfo
{
CatalogName = Convert.ToString(dr["Catalog_Name"]).TrimEnd(),
IsDefaultSchema = Convert.ToString(dr["Routine_Schema"]).TrimEnd() == defaultSchema,
IsFunction = Convert.ToString(dr["Routine_Type"]) == "FUNCTION",
IsTableFunction = Convert.ToString(dr["Function_Type"]) == "T",
ProcedureDefinition = Convert.ToString(dr["Routine_Definition"]).TrimEnd(),
ProcedureID = dataConnection.Connection.Database + "." + Convert.ToString(dr["Specific_Schema"]).TrimEnd() + "." + Convert.ToString(dr["Specific_Name"]).TrimEnd(),
ProcedureName = Convert.ToString(dr["Routine_Name"]).TrimEnd(),
SchemaName = Convert.ToString(dr["Routine_Schema"]).TrimEnd()
});
}
var list = dataConnection.Query(drf, sql).ToList();
return(list);
}
protected override void BuildCommand(int commandNumber)
{
StringBuilder.AppendLine(string.Format("SELECT {0} FROM {1}", DB2iSeriesTools.IdentityColumnSql, DB2iSeriesTools.iSeriesDummyTableName()));
}
protected override void BuildInsertOrUpdateQuery()
{
BuildInsertOrUpdateQueryAsMerge(string.Format("FROM {0} FETCH FIRST 1 ROW ONLY", DB2iSeriesTools.iSeriesDummyTableName()));
}