IDataProvider IDataProviderFactory.GetDataProvider(IEnumerable <NamedValue> attributes)
{
var provider = SqlServerProvider.SystemDataSqlClient;
var version = attributes.FirstOrDefault(_ => _.Name == "version");
var assemblyName = attributes.FirstOrDefault(_ => _.Name == "assemblyName")?.Value;
if (assemblyName == SqlServerProviderAdapter.MicrosoftAssemblyName)
{
provider = SqlServerProvider.MicrosoftDataSqlClient;
}
if (version != null)
{
switch (version.Value)
{
case "2000": return(SqlServerTools.GetDataProvider(SqlServerVersion.v2000, provider));
case "2005": return(SqlServerTools.GetDataProvider(SqlServerVersion.v2005, provider));
case "2012": return(SqlServerTools.GetDataProvider(SqlServerVersion.v2012, provider));
case "2014": return(SqlServerTools.GetDataProvider(SqlServerVersion.v2012, provider));
case "2017": return(SqlServerTools.GetDataProvider(SqlServerVersion.v2017, provider));
}
}
return(SqlServerTools.GetDataProvider(SqlServerVersion.v2008, provider));
}
protected override string? GetDbType(GetSchemaOptions options, string? columnType, DataTypeInfo? dataType, long? length, int? precision, int? scale, string? udtCatalog, string? udtSchema, string? udtName)
{
// database name for udt not supported by sql server
if (udtName != null)
return (udtSchema != null ? SqlServerTools.QuoteIdentifier(udtSchema) + '.' : null) + SqlServerTools.QuoteIdentifier(udtName);
return base.GetDbType(options, columnType, dataType, length, precision, scale, udtCatalog, udtSchema, udtName);
}
public SqlServerDataProvider(string name, SqlServerVersion version)
: base(name, (MappingSchema)null)
{
Version = version;
if (version == SqlServerVersion.v2000)
{
SqlProviderFlags.AcceptsTakeAsParameter = false;
SqlProviderFlags.IsSkipSupported = false;
SqlProviderFlags.IsCountSubQuerySupported = false;
}
else
{
SqlProviderFlags.IsApplyJoinSupported = true;
SqlProviderFlags.TakeHintsSupported = TakeHints.Percent | TakeHints.WithTies;
SqlProviderFlags.IsCommonTableExpressionsSupported = version >= SqlServerVersion.v2008;
}
SetCharField("char", (r, i) => r.GetString(i).TrimEnd(' '));
SetCharField("nchar", (r, i) => r.GetString(i).TrimEnd(' '));
SetCharFieldToType <char>("char", (r, i) => DataTools.GetChar(r, i));
SetCharFieldToType <char>("nchar", (r, i) => DataTools.GetChar(r, i));
if (!Configuration.AvoidSpecificDataProviderAPI)
{
SetProviderField <SqlDataReader, SqlBinary, SqlBinary>((r, i) => r.GetSqlBinary(i));
SetProviderField <SqlDataReader, SqlBoolean, SqlBoolean>((r, i) => r.GetSqlBoolean(i));
SetProviderField <SqlDataReader, SqlByte, SqlByte>((r, i) => r.GetSqlByte(i));
SetProviderField <SqlDataReader, SqlDateTime, SqlDateTime>((r, i) => r.GetSqlDateTime(i));
SetProviderField <SqlDataReader, SqlDecimal, SqlDecimal>((r, i) => r.GetSqlDecimal(i));
SetProviderField <SqlDataReader, SqlDouble, SqlDouble>((r, i) => r.GetSqlDouble(i));
SetProviderField <SqlDataReader, SqlGuid, SqlGuid>((r, i) => r.GetSqlGuid(i));
SetProviderField <SqlDataReader, SqlInt16, SqlInt16>((r, i) => r.GetSqlInt16(i));
SetProviderField <SqlDataReader, SqlInt32, SqlInt32>((r, i) => r.GetSqlInt32(i));
SetProviderField <SqlDataReader, SqlInt64, SqlInt64>((r, i) => r.GetSqlInt64(i));
SetProviderField <SqlDataReader, SqlMoney, SqlMoney>((r, i) => r.GetSqlMoney(i));
SetProviderField <SqlDataReader, SqlSingle, SqlSingle>((r, i) => r.GetSqlSingle(i));
SetProviderField <SqlDataReader, SqlString, SqlString>((r, i) => r.GetSqlString(i));
SetProviderField <SqlDataReader, SqlXml, SqlXml>((r, i) => r.GetSqlXml(i));
SetProviderField <SqlDataReader, DateTimeOffset>((r, i) => r.GetDateTimeOffset(i));
SetProviderField <SqlDataReader, TimeSpan> ((r, i) => r.GetTimeSpan(i));
}
else
{
SetProviderField <IDataReader, SqlString, SqlString>((r, i) => r.GetString(i));
}
_sqlServer2000SqlOptimizer = new SqlServer2000SqlOptimizer(SqlProviderFlags);
_sqlServer2005SqlOptimizer = new SqlServer2005SqlOptimizer(SqlProviderFlags);
_sqlServer2008SqlOptimizer = new SqlServerSqlOptimizer(SqlProviderFlags);
_sqlServer2012SqlOptimizer = new SqlServer2012SqlOptimizer(SqlProviderFlags);
SetField <IDataReader, decimal>((r, i) => r.GetDecimal(i));
SetField <IDataReader, decimal>("money", (r, i) => SqlServerTools.DataReaderGetMoney(r, i));
SetField <IDataReader, decimal>("smallmoney", (r, i) => SqlServerTools.DataReaderGetMoney(r, i));
SetField <IDataReader, decimal>("decimal", (r, i) => SqlServerTools.DataReaderGetDecimal(r, i));
}
protected override string GetDbType(string columnType, DataTypeInfo dataType, long?length, int?prec, int?scale, string udtCatalog, string udtSchema, string udtName)
{
// database name for udt not supported by sql server
if (udtName != null)
{
return((udtSchema != null ? SqlServerTools.QuoteIdentifier(udtSchema) + '.' : null) + SqlServerTools.QuoteIdentifier(udtName));
}
return(base.GetDbType(columnType, dataType, length, prec, scale, udtCatalog, udtSchema, udtName));
}
public override object Convert(object value, ConvertType convertType)
{
switch (convertType)
{
case ConvertType.NameToQueryParameter:
case ConvertType.NameToCommandParameter:
case ConvertType.NameToSprocParameter:
return("@" + value);
case ConvertType.NameToQueryField:
case ConvertType.NameToQueryFieldAlias:
case ConvertType.NameToQueryTableAlias:
{
var name = value.ToString();
if (name.Length > 0 && name[0] == '[')
{
return(value);
}
return(SqlServerTools.QuoteIdentifier(name));
}
case ConvertType.NameToDatabase:
case ConvertType.NameToSchema:
case ConvertType.NameToQueryTable:
if (value != null)
{
var name = value.ToString();
if (name.Length > 0 && name[0] == '[')
{
return(value);
}
// if (name.IndexOf('.') > 0)
// value = string.Join("].[", name.Split('.'));
return(SqlServerTools.QuoteIdentifier(name));
}
break;
case ConvertType.SprocParameterToName:
if (value != null)
{
var str = value.ToString();
return(str.Length > 0 && str[0] == '@'? str.Substring(1): str);
}
break;
}
return(value);
}
public override StringBuilder Convert(StringBuilder sb, string value, ConvertType convertType)
{
switch (convertType)
{
case ConvertType.NameToQueryParameter:
case ConvertType.NameToCommandParameter:
case ConvertType.NameToSprocParameter:
return(sb.Append('@').Append(value));
case ConvertType.NameToQueryField:
case ConvertType.NameToQueryFieldAlias:
case ConvertType.NameToQueryTableAlias:
if (value.Length > 0 && value[0] == '[')
{
return(sb.Append(value));
}
if (value == "$action")
{
return(sb.Append(value));
}
return(SqlServerTools.QuoteIdentifier(sb, value));
case ConvertType.NameToServer:
case ConvertType.NameToDatabase:
case ConvertType.NameToSchema:
case ConvertType.NameToQueryTable:
case ConvertType.NameToProcedure:
if (value.Length > 0 && value[0] == '[')
{
return(sb.Append(value));
}
return(SqlServerTools.QuoteIdentifier(sb, value));
case ConvertType.SprocParameterToName:
return(value.Length > 0 && value[0] == '@'
? sb.Append(value.Substring(1))
: sb.Append(value));
}
return(sb.Append(value));
}
IDataProvider IDataProviderFactory.GetDataProvider(IEnumerable <NamedValue> attributes)
{
var provider = SqlServerProvider.SystemDataSqlClient;
var version = attributes.FirstOrDefault(_ => _.Name == "version");
var assemblyName = attributes.FirstOrDefault(_ => _.Name == "assemblyName")?.Value;
if (assemblyName == SqlServerProviderAdapter.MicrosoftAssemblyName)
{
provider = SqlServerProvider.MicrosoftDataSqlClient;
}
return(version?.Value switch
{
"2000" => SqlServerTools.GetDataProvider(SqlServerVersion.v2000, provider),
"2005" => SqlServerTools.GetDataProvider(SqlServerVersion.v2005, provider),
"2012" => SqlServerTools.GetDataProvider(SqlServerVersion.v2012, provider),
"2014" => SqlServerTools.GetDataProvider(SqlServerVersion.v2012, provider),
"2017" => SqlServerTools.GetDataProvider(SqlServerVersion.v2017, provider),
_ => SqlServerTools.GetDataProvider(SqlServerVersion.v2008, provider),
});
public SqlServerDataProvider(string name, SqlServerVersion version, SqlServerProvider provider)
: base(
name,
MappingSchemaInstance.Get(version),
SqlServerProviderAdapter.GetInstance(provider))
{
Version = version;
Provider = provider;
SqlProviderFlags.IsDistinctOrderBySupported = false;
SqlProviderFlags.IsSubQueryOrderBySupported = false;
SqlProviderFlags.IsDistinctSetOperationsSupported = true;
SqlProviderFlags.IsCountDistinctSupported = true;
SqlProviderFlags.IsUpdateFromSupported = true;
if (version == SqlServerVersion.v2000)
{
SqlProviderFlags.AcceptsTakeAsParameter = false;
SqlProviderFlags.IsSkipSupported = false;
SqlProviderFlags.IsCountSubQuerySupported = false;
}
else
{
SqlProviderFlags.IsApplyJoinSupported = true;
SqlProviderFlags.TakeHintsSupported = TakeHints.Percent | TakeHints.WithTies;
SqlProviderFlags.IsCommonTableExpressionsSupported = version >= SqlServerVersion.v2008;
}
SetCharField("char", (r, i) => r.GetString(i).TrimEnd(' '));
SetCharField("nchar", (r, i) => r.GetString(i).TrimEnd(' '));
SetCharFieldToType <char>("char", (r, i) => DataTools.GetChar(r, i));
SetCharFieldToType <char>("nchar", (r, i) => DataTools.GetChar(r, i));
_sqlOptimizer = version switch
{
SqlServerVersion.v2000 => new SqlServer2000SqlOptimizer(SqlProviderFlags),
SqlServerVersion.v2005 => new SqlServer2005SqlOptimizer(SqlProviderFlags),
SqlServerVersion.v2012 => new SqlServer2012SqlOptimizer(SqlProviderFlags),
SqlServerVersion.v2017 => new SqlServer2017SqlOptimizer(SqlProviderFlags),
_ => new SqlServer2008SqlOptimizer(SqlProviderFlags),
};
SetField <IDataReader, decimal>((r, i) => r.GetDecimal(i));
SetField <IDataReader, decimal>("money", (r, i) => SqlServerTools.DataReaderGetMoney(r, i));
SetField <IDataReader, decimal>("smallmoney", (r, i) => SqlServerTools.DataReaderGetMoney(r, i));
SetField <IDataReader, decimal>("decimal", (r, i) => SqlServerTools.DataReaderGetDecimal(r, i));
// missing:
// GetSqlBytes
// GetSqlChars
SetProviderField <SqlBinary, SqlBinary>(SqlTypes.GetSqlBinaryReaderMethod, dataReaderType: Adapter.DataReaderType);
SetProviderField <SqlBoolean, SqlBoolean>(SqlTypes.GetSqlBooleanReaderMethod, dataReaderType: Adapter.DataReaderType);
SetProviderField <SqlByte, SqlByte>(SqlTypes.GetSqlByteReaderMethod, dataReaderType: Adapter.DataReaderType);
SetProviderField <SqlDateTime, SqlDateTime>(SqlTypes.GetSqlDateTimeReaderMethod, dataReaderType: Adapter.DataReaderType);
SetProviderField <SqlDecimal, SqlDecimal>(SqlTypes.GetSqlDecimalReaderMethod, dataReaderType: Adapter.DataReaderType);
SetProviderField <SqlDouble, SqlDouble>(SqlTypes.GetSqlDoubleReaderMethod, dataReaderType: Adapter.DataReaderType);
SetProviderField <SqlGuid, SqlGuid>(SqlTypes.GetSqlGuidReaderMethod, dataReaderType: Adapter.DataReaderType);
SetProviderField <SqlInt16, SqlInt16>(SqlTypes.GetSqlInt16ReaderMethod, dataReaderType: Adapter.DataReaderType);
SetProviderField <SqlInt32, SqlInt32>(SqlTypes.GetSqlInt32ReaderMethod, dataReaderType: Adapter.DataReaderType);
SetProviderField <SqlInt64, SqlInt64>(SqlTypes.GetSqlInt64ReaderMethod, dataReaderType: Adapter.DataReaderType);
SetProviderField <SqlMoney, SqlMoney>(SqlTypes.GetSqlMoneyReaderMethod, dataReaderType: Adapter.DataReaderType);
SetProviderField <SqlSingle, SqlSingle>(SqlTypes.GetSqlSingleReaderMethod, dataReaderType: Adapter.DataReaderType);
SetProviderField <SqlString, SqlString>(SqlTypes.GetSqlStringReaderMethod, dataReaderType: Adapter.DataReaderType);
SetProviderField <SqlXml, SqlXml>(Adapter.GetSqlXmlReaderMethod, dataReaderType: Adapter.DataReaderType);
SetProviderField <DateTimeOffset>(Adapter.GetDateTimeOffsetReaderMethod, dataReaderType: Adapter.DataReaderType);
SetProviderField <TimeSpan> (Adapter.GetTimeSpanReaderMethod, dataReaderType: Adapter.DataReaderType);
// non-specific fallback
SetProviderField <IDataReader, SqlString, SqlString>((r, i) => r.GetString(i));
SqlServerTypes.Configure(this);
}
