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+ (Addition) (Transact-SQL)
+ (Unäres Plus) (Transact-SQL)
+ (Verketten von Zeichenfolgen) (Transact-SQL)
+= (Add EQUALS) (Transact-SQL)
+= (Verketten von Zeichenfolgen) (Transact-SQL)
- (Negativ) (Transact-SQL)
- (Subtraktion) (Transact-SQL)
-= (Subtract EQUALS) (Transact-SQL)
* (Multiplikation) (Transact-SQL)
*= (Multiply EQUALS) (Transact-SQL)
/ (Division) (Transact-SQL)
/= (Divide EQUALS) (Transact-SQL)
\ (umgekehrter Schrägstrich) (Transact-SQL)
% (Modulo) (Transact-SQL)
%= (Modulo EQUALS) (Transact-SQL)
% (Platzhalterzeichen – zu suchende(s) Zeichen) (Transact-SQL)
& (Bitweises AND) (Transact-SQL)
&= (Bitwise AND EQUALS) (Transact-SQL)
| (Bitweises OR) (Transact-SQL)
|= (Bitwise OR EQUALS) (Transact-SQL)
^ (Bitweises exklusives OR) (Transact-SQL)
^= (Bitwise Exclusive OR EQUALS) (Transact-SQL)
~ (Bitweises NOT) (Transact-SQL)
= (Gleich) (Transact-SQL)
> (Größer als) (Transact-SQL)
< (Kleiner als) (Transact-SQL)
>= (Größer als oder gleich) (Transact-SQL)
<= (Kleiner als oder gleich) (Transact-SQL)
<> (Ungleich) (Transact-SQL)
!< (Nicht kleiner als) (Transact-SQL)
!= (Ungleich) (Transact-SQL)
!> (Nicht größer als) (Transact-SQL)
-- (Kommentar) (Transact-SQL)
/*...*/ (Kommentar) (Transact-SQL)
[ ] (Platzhalterzeichen - zu suchende(s) Zeichen) (Transact-SQL)
[^] (Platzhalterzeichen - nicht zu suchende(s) Zeichen) (Transact-SQL)
_ (Platzhalterzeichen - einzelnes zu suchendes Zeichen) (Transact-SQL)
$PARTITION (Transact-SQL)
@@CONNECTIONS (Transact-SQL)
@@CPU_BUSY (Transact-SQL)
@@CURSOR_ROWS (Transact-SQL)
@@DATEFIRST (Transact-SQL)
@@DBTS (Transact-SQL)
@@ERROR (Transact-SQL)
@@FETCH_STATUS (Transact-SQL)
@@IDENTITY (Transact-SQL)
@@IDLE (Transact-SQL)
@@IO_BUSY (Transact-SQL)
@@LANGID (Transact-SQL)
@@LANGUAGE (Transact-SQL)
@@LOCK_TIMEOUT (Transact-SQL)
@@MAX_CONNECTIONS (Transact-SQL)
@@MAX_PRECISION (Transact-SQL)
@@NESTLEVEL (Transact-SQL)
@@OPTIONS (Transact-SQL)
@@PACK_RECEIVED (Transact-SQL)
@@PACK_SENT (Transact-SQL)
@@PACKET_ERRORS (Transact-SQL)
@@PROCID (Transact-SQL)
@@REMSERVER (Transact-SQL)
@@ROWCOUNT (Transact-SQL)
@@SERVERNAME (Transact-SQL)
@@SERVICENAME (Transact-SQL)
@@SPID (Transact-SQL)
@@TEXTSIZE (Transact-SQL)
@@TIMETICKS (Transact-SQL)
@@TOTAL_ERRORS (Transact-SQL)
@@TOTAL_READ (Transact-SQL)
@@TOTAL_WRITE (Transact-SQL)
@@TRANCOUNT (Transact-SQL)
@@VERSION (Transact-SQL)
ABS (Transact-SQL)
ACOS (Transact-SQL)
ADD SIGNATURE (Transact-SQL)
ALL (Transact-SQL)
ALTER-Anweisungen (Transact-SQL)
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ANY (Transact-SQL)
APPLOCK_MODE (Transact-SQL)
APPLOCK_TEST (Transact-SQL)
APP_NAME (Transact-SQL)
ASCII (Transact-SQL)
ASIN (Transact-SQL)
ASSEMBLYPROPERTY (Transact-SQL)
ASYMKEY_ID (Transact-SQL)
ASYMKEYPROPERTY (Transact-SQL)
ATAN (Transact-SQL)
ATN2 (Transact-SQL)
AVG (Transact-SQL)
BACKUP (Transact-SQL)
BACKUP CERTIFICATE (Transact-SQL)
BACKUP MASTER KEY (Transact-SQL)
BACKUP SERVICE MASTER KEY (Transact-SQL)
BEGIN...END (Transact-SQL)
BEGIN CONVERSATION TIMER (Transact-SQL)
BEGIN DIALOG CONVERSATION (Transact-SQL)
BEGIN DISTRIBUTED TRANSACTION (Transact-SQL)
BEGIN TRANSACTION (Transact-SQL)
BETWEEN (Transact-SQL)
binary und varbinary (Transact-SQL)
BINARY_CHECKSUM (Transact-SQL)
bit (Transact-SQL)
BREAK (Transact-SQL)
BULK INSERT (Transact-SQL)
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date (Transact-SQL)
DATEADD (Transact-SQL)
DATEDIFF (Transact-SQL)
DATENAME (Transact-SQL)
DATEPART (Transact-SQL)
datetime (Transact-SQL)
datetime2 (Transact-SQL)
datetimeoffset (Transact-SQL)
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ENCRYPTBYKEY (Transact-SQL)
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END (BEGIN...END) (Transact-SQL)
END CONVERSATION (Transact-SQL)
ERROR_LINE (Transact-SQL)
ERROR_MESSAGE (Transact-SQL)
ERROR_NUMBER (Transact-SQL)
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EXECUTE AS (Transact-SQL)
EXECUTE AS-Klausel (Transact-SQL)
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float und real (Transact-SQL)
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fn_get_sql (Transact-SQL)
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fn_listextendedproperty (Transact-SQL)
sys.fn_xe_file_target_read_file (Transact-SQL)
fn_my_permissions (Transact-SQL)
fn_servershareddrives (Transact-SQL)
fn_trace_geteventinfo (Transact-SQL)
fn_trace_getfilterinfo (Transact-SQL)
fn_trace_getinfo (Transact-SQL)
fn_trace_gettable (Transact-SQL)
fn_virtualfilestats (Transact-SQL)
fn_virtualservernodes (Transact-SQL)
FOR-Klausel (Transact-SQL)
FORMATMESSAGE (Transact-SQL)
FREETEXT (Transact-SQL)
FREETEXTTABLE (Transact-SQL)
FROM (Transact-SQL)
FULLTEXTCATALOGPROPERTY (Transact-SQL)
FULLTEXTSERVICEPROPERTY (Transact-SQL)
Funktionen (Transact-SQL)
geography (Transact-SQL)
geometry (Transact-SQL)
GET CONVERSATION GROUP (Transact-SQL)
GET_FILESTREAM_TRANSACTION_CONTEXT (Transact-SQL)
GET_TRANSMISSION_STATUS (Transact-SQL)
GETANSINULL (Transact-SQL)
GETDATE (Transact-SQL)
GETUTCDATE (Transact-SQL)
GO (Transact-SQL)
GOTO (Transact-SQL)
GRANT (Transact-SQL)
GROUP BY (Transact-SQL)
GROUPING (Transact-SQL)
GROUPING_ID (Transact-SQL)
HAS_DBACCESS (Transact-SQL)
HAS_PERMS_BY_NAME (Transact-SQL)
HashBytes (Transact-SQL)
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hierarchyid (Transact-SQL)
Hinweise (Transact-SQL)
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KILL (Transact-SQL)
KILL QUERY NOTIFICATION SUBSCRIPTION (Transact-SQL)
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LOG (Transact-SQL)
LOG10 (Transact-SQL)
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money und smallmoney (Transact-SQL)
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ntext, text und image (Transact-SQL)
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NULLIF (Transact-SQL)
numeric (Transact-SQL)
OBJECT_DEFINITION (Transact-SQL)
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OBJECT_NAME (Transact-SQL)
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OBJECTPROPERTY (Transact-SQL)
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Operatoren (Transact-SQL)
OPTION-Klausel (Transact-SQL)
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ORDER BY-Klausel (Transact-SQL)
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OUTPUT-Klausel (Transact-SQL)
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PARSENAME (Transact-SQL)
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RADIANS (Transact-SQL)
RAISERROR
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RECEIVE (Transact-SQL)
RECONFIGURE (Transact-SQL)
REPLACE (Transact-SQL)
REPLICATE (Transact-SQL)
Reservierte Schlüsselwörter (Transact-SQL)
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SERVERPROPERTY (Transact-SQL)
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SET @local_variable (Transact-SQL)
SET (Transact-SQL)
SETUSER (Transact-SQL)
SHUTDOWN (Transact-SQL)
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SignByAsymKey (Transact-SQL)
SignByCert (Transact-SQL)
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smalldatetime (Transact-SQL)
smallint (Transact-SQL)
smallmoney (Transact-SQL)
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sql_variant (Transact-SQL)
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sys.login_token (Transact-SQL)
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SYSTEM_USER (Transact-SQL)
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ENCRYPTBYASYMKEY (Transact-SQL)

SQL Server 2008

Verschlüsselt Daten mit einem asymmetrischen Schlüssel.

Themenlink (Symbol) Transact-SQL-Syntaxkonventionen

Kopieren 

EncryptByAsymKey ( Asym_Key_ID , { 'plaintext' | @plaintext } )
Asym_Key_ID

Die ID eines asymmetrischen Schlüssels in der Datenbank. int.

cleartext

Eine Zeichenfolge der Daten, die mit dem asymmetrischen Schlüssel verschlüsselt werden.

@plaintext

Eine Variable vom Typ nvarchar, char, varchar, binary, varbinary oder nchar, die Daten enthält, die mit dem asymmetrischen Schlüssel verschlüsselt werden sollen.

varbinary mit einer maximalen Größe von 8.000 Bytes.

Das Verschlüsseln und Entschlüsseln mit einem asymmetrischen Schlüssel ist im Vergleich zum Verschlüsseln und Entschlüsseln mit einem symmetrischen Schlüssel sehr teuer. Es ist nicht empfehlenswert, große Datasets, wie z. B. Benutzerdaten in Tabellen, mithilfe eines asymmetrischen Schlüssels zu verschlüsseln. Stattdessen sollten Sie die Daten mithilfe eines starken symmetrischen Schlüssels verschlüsseln und den symmetrischen Schlüssel mithilfe eines asymmetrischen Schlüssels verschlüsseln.

Im folgenden Beispiel wird der in @cleartext gespeicherte Text mit dem asymmetrischen Schlüssel JanainaAsymKey02 verschlüsselt. Die verschlüsselten Daten werden in die ProtectedData04-Tabelle eingefügt.

Kopieren 
INSERT INTO [AdventureWorks].[Sales].[ProtectedData04] 
    values( N'data encrypted by asymmetric key ''JanainaAsymKey02''',
    EncryptByAsymKey(AsymKey_ID('JanainaAsymKey02'), @cleartext) )
GO
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