Overview > klyn.databases.sql.sqlserver > SqlServerSupport
Version 0.1.2 Overview Index Tree Deprecated
SqlServerSupport
classin packageklyn.databases.sql.sqlserver
public class SqlServerSupport:
SqlServerSupport

Protocol helpers for Microsoft SQL Server TDS (Tabular Data Stream).

TDS is the application-layer protocol used by SQL Server for all client-server communication. This implementation focuses on TDS 7.4 (SQL Server 2012+) with support for:

  • Pre-login handshake with TLS negotiation
  • Login with SQL Server authentication
  • Simple query execution
  • Result set parsing
import klyn.databases.sql.sqlserver

# TDS packet types
print(SqlServerSupport.TDS_QUERY)  # 1
Fields
Modifier and Type Member Description
public static readonly DRIVER_NAME
DRIVER_NAME as String = "Klyn SQL Server Driver"
 No summary.
public static readonly DRIVER_VERSION
DRIVER_VERSION as String = "0.1"
 No summary.
public static readonly ENCRYPT_NOT_SUP
ENCRYPT_NOT_SUP as Int = 2
 No summary.
public static readonly ENCRYPT_OFF
ENCRYPT_OFF as Int = 0
 No summary.
public static readonly ENCRYPT_ON
ENCRYPT_ON as Int = 1
 No summary.
public static readonly ENCRYPT_REQ
ENCRYPT_REQ as Int = 3
 No summary.
public static readonly PRELOGIN_ENCRYPTION
PRELOGIN_ENCRYPTION as Int = 1
 No summary.
public static readonly PRELOGIN_FEDAUTHREQUIRED
PRELOGIN_FEDAUTHREQUIRED as Int = 6
 No summary.
public static readonly PRELOGIN_INSTOPT
PRELOGIN_INSTOPT as Int = 2
 No summary.
public static readonly PRELOGIN_MARS
PRELOGIN_MARS as Int = 4
 No summary.
public static readonly PRELOGIN_NONCEOPT
PRELOGIN_NONCEOPT as Int = 7
 No summary.
public static readonly PRELOGIN_TERMINATOR
PRELOGIN_TERMINATOR as Int = 255
 No summary.
public static readonly PRELOGIN_THREADID
PRELOGIN_THREADID as Int = 3
 No summary.
public static readonly PRELOGIN_TRACEID
PRELOGIN_TRACEID as Int = 5
 No summary.
public static readonly PRELOGIN_VERSION
PRELOGIN_VERSION as Int = 0
 No summary.
public static readonly PRODUCT_NAME
PRODUCT_NAME as String = "Microsoft SQL Server"
 No summary.
public static readonly SQLTYPE_BIGINT
SQLTYPE_BIGINT as Int = 127
 No summary.
public static readonly SQLTYPE_BINARY
SQLTYPE_BINARY as Int = 173
 No summary.
public static readonly SQLTYPE_BINARY_LEGACY
SQLTYPE_BINARY_LEGACY as Int = 45
 No summary.
public static readonly SQLTYPE_BIT
SQLTYPE_BIT as Int = 104
 No summary.
public static readonly SQLTYPE_BITN
SQLTYPE_BITN as Int = 104
 No summary.
public static readonly SQLTYPE_CHAR
SQLTYPE_CHAR as Int = 175
 No summary.
public static readonly SQLTYPE_CHAR_LEGACY
SQLTYPE_CHAR_LEGACY as Int = 47
 No summary.
public static readonly SQLTYPE_DATE
SQLTYPE_DATE as Int = 40
 No summary.
public static readonly SQLTYPE_DATETIME
SQLTYPE_DATETIME as Int = 61
 No summary.
public static readonly SQLTYPE_DATETIME2
SQLTYPE_DATETIME2 as Int = 42
 No summary.
public static readonly SQLTYPE_DATETIMEOFFSET
SQLTYPE_DATETIMEOFFSET as Int = 43
 No summary.
public static readonly SQLTYPE_DATETIMN
SQLTYPE_DATETIMN as Int = 111
 No summary.
public static readonly SQLTYPE_DECIMAL
SQLTYPE_DECIMAL as Int = 106
 No summary.
public static readonly SQLTYPE_FLOAT
SQLTYPE_FLOAT as Int = 62
 No summary.
public static readonly SQLTYPE_FLTN
SQLTYPE_FLTN as Int = 109
 No summary.
public static readonly SQLTYPE_IMAGE
SQLTYPE_IMAGE as Int = 241
 No summary.
public static readonly SQLTYPE_INT
SQLTYPE_INT as Int = 56
 No summary.
public static readonly SQLTYPE_INTN
SQLTYPE_INTN as Int = 38
 No summary.
public static readonly SQLTYPE_MONEY
SQLTYPE_MONEY as Int = 60
 No summary.
public static readonly SQLTYPE_MONEYN
SQLTYPE_MONEYN as Int = 110
 No summary.
public static readonly SQLTYPE_NCHAR
SQLTYPE_NCHAR as Int = 239
 No summary.
public static readonly SQLTYPE_NTEXT
SQLTYPE_NTEXT as Int = 99
 No summary.
public static readonly SQLTYPE_NUMERIC
SQLTYPE_NUMERIC as Int = 108
 No summary.
public static readonly SQLTYPE_NVARCHAR
SQLTYPE_NVARCHAR as Int = 231
 No summary.
public static readonly SQLTYPE_REAL
SQLTYPE_REAL as Int = 59
 No summary.
public static readonly SQLTYPE_SMALLDATETIME
SQLTYPE_SMALLDATETIME as Int = 58
 No summary.
public static readonly SQLTYPE_SMALLINT
SQLTYPE_SMALLINT as Int = 52
 No summary.
public static readonly SQLTYPE_SMALLMONEY
SQLTYPE_SMALLMONEY as Int = 122
 No summary.
public static readonly SQLTYPE_TEXT
SQLTYPE_TEXT as Int = 35
 No summary.
public static readonly SQLTYPE_TIME
SQLTYPE_TIME as Int = 41
 No summary.
public static readonly SQLTYPE_TIMESTAMP
SQLTYPE_TIMESTAMP as Int = 80
 No summary.
public static readonly SQLTYPE_TINYINT
SQLTYPE_TINYINT as Int = 48
 No summary.
public static readonly SQLTYPE_UNIQUEIDENTIFIER
SQLTYPE_UNIQUEIDENTIFIER as Int = 36
 No summary.
public static readonly SQLTYPE_VARBINARY
SQLTYPE_VARBINARY as Int = 165
 No summary.
public static readonly SQLTYPE_VARBINARY_LEGACY
SQLTYPE_VARBINARY_LEGACY as Int = 37
 No summary.
public static readonly SQLTYPE_VARCHAR
SQLTYPE_VARCHAR as Int = 167
 No summary.
public static readonly SQLTYPE_VARCHAR_LEGACY
SQLTYPE_VARCHAR_LEGACY as Int = 39
 No summary.
public static readonly SQLTYPE_XML
SQLTYPE_XML as Int = 241
 No summary.
public static readonly TDS_CLOSE
TDS_CLOSE as Int = 21
 No summary.
public static readonly TDS_LOGIN7
TDS_LOGIN7 as Int = 16
 No summary.
public static readonly TDS_PRELOGIN
TDS_PRELOGIN as Int = 18
 No summary.
public static readonly TDS_QUERY
TDS_QUERY as Int = 1
 No summary.
public static readonly TDS_RPC
TDS_RPC as Int = 3
 No summary.
public static readonly TDS_SSPI
TDS_SSPI as Int = 17
 No summary.
public static readonly TDS_TOKENS
TDS_TOKENS as Int = 4
 No summary.
public static readonly TDS_TOKEN_ALTMETADATA
TDS_TOKEN_ALTMETADATA as Int = 160
 No summary.
public static readonly TDS_TOKEN_ALTROW
TDS_TOKEN_ALTROW as Int = 161
 No summary.
public static readonly TDS_TOKEN_COLINFO
TDS_TOKEN_COLINFO as Int = 165
 No summary.
public static readonly TDS_TOKEN_COLMETADATA
TDS_TOKEN_COLMETADATA as Int = 129
 No summary.
public static readonly TDS_TOKEN_DONE
TDS_TOKEN_DONE as Int = 253
 No summary.
public static readonly TDS_TOKEN_DONEINSTREAM
TDS_TOKEN_DONEINSTREAM as Int = 255
 No summary.
public static readonly TDS_TOKEN_DONEPROC
TDS_TOKEN_DONEPROC as Int = 254
 No summary.
public static readonly TDS_TOKEN_ENVCHANGE
TDS_TOKEN_ENVCHANGE as Int = 227
 No summary.
public static readonly TDS_TOKEN_ERROR
TDS_TOKEN_ERROR as Int = 170
 No summary.
public static readonly TDS_TOKEN_FEATUREEXTACK
TDS_TOKEN_FEATUREEXTACK as Int = 174
 No summary.
public static readonly TDS_TOKEN_INFO
TDS_TOKEN_INFO as Int = 171
 No summary.
public static readonly TDS_TOKEN_LOGINACK
TDS_TOKEN_LOGINACK as Int = 173
 No summary.
public static readonly TDS_TOKEN_NBCROW
TDS_TOKEN_NBCROW as Int = 210
 No summary.
public static readonly TDS_TOKEN_ORDERBY
TDS_TOKEN_ORDERBY as Int = 169
 No summary.
public static readonly TDS_TOKEN_RETURNSTATUS
TDS_TOKEN_RETURNSTATUS as Int = 121
 No summary.
public static readonly TDS_TOKEN_RETURNVALUE
TDS_TOKEN_RETURNVALUE as Int = 172
 No summary.
public static readonly TDS_TOKEN_ROW
TDS_TOKEN_ROW as Int = 209
 No summary.
public static readonly TDS_TOKEN_SSPI
TDS_TOKEN_SSPI as Int = 237
 No summary.
public static readonly TDS_TOKEN_TABNAME
TDS_TOKEN_TABNAME as Int = 164
 No summary.
public static readonly TDS_VERSION_7_4
TDS_VERSION_7_4 as Int = 0x74000004
 No summary.
Methods
Modifier and Type Member Description
public static _ubyte
_ubyte(value as Byte) as Int:
 No summary.
public static buildLogin7Packet
buildLogin7Packet(options as SqlServerOptions) as Byte[]:
 Builds a TDS login7 packet.
public static buildPreLoginPacket
buildPreLoginPacket(options as SqlServerOptions) as Byte[]:
 Builds a TDS pre-login packet.
public static byteToHex
byteToHex(value as Int) as String:
 No summary.
public static convertValue
convertValue(raw as String, sqlType as Int) as Object:
 Converts a raw string value to the appropriate Klyn type based on SQL type.
public static decodeUtf16Le
decodeUtf16Le(data as Byte[]) as String:
 No summary.
public static encodeUrlComponent
encodeUrlComponent(input as String) as String:
 Encodes a string for URL usage.
public static isDoneToken
isDoneToken(tokenType as Int) as Boolean:
 Checks if a token indicates end of results.
public static obfuscatePassword
obfuscatePassword(password as String) as Byte[]:
 No summary.
public static parseExecutionResponse
parseExecutionResponse(payload as Byte[], statement as Statement = null, resultSetType as ResultSetType = ResultSetType.FORWARD_ONLY, concurrency as ResultSetConcurrency = ResultSetConcurrency.READ_ONLY, holdability as ResultSetHoldability = ResultSetHoldability.CLOSE_CURSORS_AT_COMMIT) as SqlServerExecutionResult throws SQLException:
 Parses a SQL execution response token stream.
public static parseLoginResponse
parseLoginResponse(payload as Byte[]) as Map<String, Object> throws SQLException:
 Parses a login response token stream.
public static parsePreLoginResponse
parsePreLoginResponse(data as Byte[]) as Map<String, Object>:
 Parses a pre-login response packet.
public static parseUrl
parseUrl(url as String, properties as Map<String, String> = null) as SqlServerOptions throws SQLException:
 Parses a connection URL into SqlServerOptions.
public static sqlTypeToKlynType
sqlTypeToKlynType(sqlType as Int) as Int:
 Converts a SQL Server type code to Klyn Types constant.
public static stringToUtf16LeBytes
stringToUtf16LeBytes(text as String) as Byte[]:
 Converts a String to UTF-16LE bytes.
public static stringToUtf8Bytes
stringToUtf8Bytes(text as String) as Byte[]:
 Converts a String to UTF-8 bytes.