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Transact-SQL-Syntaxkonventionen (Transact-SQL)
Lernprogramm: Schreiben von Transact-SQL-Anweisungen
+ (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)
AND (Transact-SQL)
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)
CASE (Transact-SQL)
CAST und CONVERT (Transact-SQL)
CATCH (TRY...CATCH) (Transact-SQL)
CEILING (Transact-SQL)
CertProperty (Transact-SQL)
Cert_ID (Transact-SQL)
Change Data Capture-Funktionen (Transact-SQL)
Änderungsnachverfolgungsfunktionen (Transact-SQL)
char und varchar (Transact-SQL)
CHAR (Transact-SQL)
CHARINDEX (Transact-SQL)
CHECKPOINT (Transact-SQL)
CHECKSUM (Transact-SQL)
CHECKSUM_AGG
CLOSE (Transact-SQL)
CLOSE MASTER KEY (Transact-SQL)
CLOSE SYMMETRIC KEY (Transact-SQL)
COALESCE (Transact-SQL)
COLLATE (Transact-SQL)
COLLATIONPROPERTY (Transact-SQL)
COL_LENGTH (Transact-SQL)
COL_NAME (Transact-SQL)
COLUMNPROPERTY (Transact-SQL)
COLUMNS_UPDATED (Transact-SQL)
COMMIT TRANSACTION (Transact-SQL)
COMMIT WORK (Transact-SQL)
Verbundoperatoren (Transact-SQL)
COMPUTE (Transact-SQL)
CONNECTIONPROPERTY (Transact-SQL)
Konstanten (Transact-SQL)
CONTAINS (Transact-SQL)
CONTAINSTABLE (Transact-SQL)
CONTINUE (Transact-SQL)
CONTEXT_INFO (Transact-SQL)
Ablaufsteuerungssprache (Transact-SQL)
CONVERT (Transact-SQL)
COS (Transact-SQL)
COT (Transact-SQL)
COUNT (Transact-SQL)
COUNT_BIG (Transact-SQL)
CREATE-Anweisungen (Transact-SQL)
CRYPT_GEN_RANDOM (Transact-SQL)
CURRENT_REQUEST_ID (Transact-SQL)
CURRENT_TIMESTAMP (Transact-SQL)
CURRENT_USER (Transact-SQL)
cursor (Transact-SQL)
CURSOR_STATUS (Transact-SQL)
Cursor (Transact-SQL)
Funktionen des Datenauflisters (Transact-SQL)
Datentypen (Transact-SQL)
DATABASE_PRINCIPAL_ID (Transact-SQL)
DATABASEPROPERTY (Transact-SQL)
DATABASEPROPERTYEX (Transact-SQL)
DATALENGTH (Transact-SQL)
date (Transact-SQL)
DATEADD (Transact-SQL)
DATEDIFF (Transact-SQL)
DATENAME (Transact-SQL)
DATEPART (Transact-SQL)
datetime (Transact-SQL)
datetime2 (Transact-SQL)
datetimeoffset (Transact-SQL)
DAY (Transact-SQL)
DB_ID (Transact-SQL)
DB_NAME (Transact-SQL)
DBCC (Transact-SQL)
DEALLOCATE (Transact-SQL)
decimal und numeric (Transact-SQL)
DECLARE @local_variable (Transact-SQL)
DECLARE CURSOR (Transact-SQL)
DECRYPTBYASYMKEY (Transact-SQL)
DECRYPTBYCERT (Transact-SQL)
DECRYPTBYKEY (Transact-SQL)
DECRYPTBYKEYAUTOASYMKEY (Transact-SQL)
DECRYPTBYKEYAUTOCERT (Transact-SQL)
DECRYPTBYPASSPHRASE (Transact-SQL)
DEGREES (Transact-SQL)
DELETE (Transact-SQL)
DENSE_RANK (Transact-SQL)
DENY (Transact-SQL)
DIFFERENCE (Transact-SQL)
DISABLE TRIGGER (Transact-SQL)
DROP-Anweisungen (Transact-SQL)
ELSE (IF...ELSE) (Transact-SQL)
ENABLE TRIGGER (Transact-SQL)
ENCRYPTBYASYMKEY (Transact-SQL)
ENCRYPTBYCERT (Transact-SQL)
ENCRYPTBYKEY (Transact-SQL)
ENCRYPTBYPASSPHRASE (Transact-SQL)
END (BEGIN...END) (Transact-SQL)
END CONVERSATION (Transact-SQL)
ERROR_LINE (Transact-SQL)
ERROR_MESSAGE (Transact-SQL)
ERROR_NUMBER (Transact-SQL)
ERROR_PROCEDURE (Transact-SQL)
ERROR_SEVERITY (Transact-SQL)
ERROR_STATE (Transact-SQL)
EVENTDATA (Transact-SQL)
EXCEPT und INTERSECT (Transact-SQL)
EXECUTE AS (Transact-SQL)
EXECUTE AS-Klausel (Transact-SQL)
EXECUTE
EXISTS (Transact-SQL)
EXP (Transact-SQL)
Ausdrücke (Transact-SQL)
FETCH (Transact-SQL)
FILE_ID (Transact-SQL)
FILE_IDEX (Transact-SQL)
FILE_NAME (Transact-SQL)
FILEGROUP_ID (Transact-SQL)
FILEGROUP_NAME (Transact-SQL)
FILEGROUPPROPERTY (Transact-SQL)
FILEPROPERTY (Transact-SQL)
float und real (Transact-SQL)
FLOOR (Transact-SQL)
sys.fn_check_object_signatures (Transact-SQL)
fn_get_audit_file (Transact-SQL)
fn_get_sql (Transact-SQL)
fn_helpcollations (Transact-SQL)
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)
HAVING (Transact-SQL)
hierarchyid (Transact-SQL)
Hinweise (Transact-SQL)
HOST_ID (Transact-SQL)
HOST_NAME (Transact-SQL)
IDENT_CURRENT (Transact-SQL)
IDENT_INCR (Transact-SQL)
IDENT_SEED (Transact-SQL)
IDENTITY (Funktion) (Transact-SQL)
IDENTITY-Eigenschaft (Transact-SQL)
IF...ELSE (Transact-SQL)
image (Transact-SQL)
IN (Transact-SQL)
INDEXKEY_PROPERTY (Transact-SQL)
INDEXPROPERTY (Transact-SQL)
INDEX_COL (Transact-SQL)
INSERT (Transact-SQL)
int, bigint, smallint und tinyint (Transact-SQL)
INTO-Klausel (Transact-SQL)
IS_MEMBER (Transact-SQL)
IS_OBJECTSIGNED (Transact-SQL)
IS_SRVROLEMEMBER (Transact-SQL)
ISDATE (Transact-SQL)
IS [NOT] NULL (Transact-SQL)
ISNULL (Transact-SQL)
ISNUMERIC (Transact-SQL)
Key_GUID (Transact-SQL)
Key_ID (Transact-SQL)
KEY_NAME (Transact-SQL)
KILL (Transact-SQL)
KILL QUERY NOTIFICATION SUBSCRIPTION (Transact-SQL)
KILL STATS JOB (Transact-SQL)
LEFT (Transact-SQL)
LEN (Transact-SQL)
LIKE (Transact-SQL)
LOG (Transact-SQL)
LOG10 (Transact-SQL)
LOGINPROPERTY (Transact-SQL)
LOWER (Transact-SQL)
LTRIM (Transact-SQL)
MAX (Transact-SQL)
MERGE (Transact-SQL)
MIN (Transact-SQL)
MIN_ACTIVE_ROWVERSION (Transact-SQL)
money und smallmoney (Transact-SQL)
MONTH (Transact-SQL)
MOVE CONVERSATION (Transact-SQL)
NCHAR (Transact-SQL)
nchar und nvarchar (Transact-SQL)
NEWID (Transact-SQL)
NEWSEQUENTIALID() (Transact-SQL)
NOT (Transact-SQL)
ntext, text und image (Transact-SQL)
NTILE (Transact-SQL)
NULLIF (Transact-SQL)
numeric (Transact-SQL)
OBJECT_DEFINITION (Transact-SQL)
OBJECT_ID (Transact-SQL)
OBJECT_NAME (Transact-SQL)
OBJECT_SCHEMA_NAME (Transact-SQL)
OBJECTPROPERTY (Transact-SQL)
OBJECTPROPERTYEX (Transact-SQL)
ODBC-Skalarfunktionen (Transact-SQL)
OPEN (Transact-SQL)
OPEN MASTER KEY (Transact-SQL)
OPEN SYMMETRIC KEY (Transact-SQL)
OPENDATASOURCE (Transact-SQL)
OPENQUERY (Transact-SQL)
OPENROWSET (Transact-SQL)
OPENXML (Transact-SQL)
Operatoren (Transact-SQL)
OPTION-Klausel (Transact-SQL)
OR (Transact-SQL)
ORDER BY-Klausel (Transact-SQL)
ORIGINAL_DB_NAME (Transact-SQL)
ORIGINAL_LOGIN (Transact-SQL)
OUTPUT-Klausel (Transact-SQL)
OVER-Klausel (Transact-SQL)
PARSENAME (Transact-SQL)
PathName (Transact-SQL)
PATINDEX (Transact-SQL)
PERMISSIONS (Transact-SQL)
PI (Transact-SQL)
POWER (Transact-SQL)
Prädikat (Transact-SQL)
PRINT (Transact-SQL)
PUBLISHINGSERVERNAME (Transact-SQL)
PWDCOMPARE (Transact-SQL)
PWDENCRYPT (Transact-SQL)
QUOTENAME (Transact-SQL)
RADIANS (Transact-SQL)
RAISERROR
RAND (Transact-SQL)
RANK (Transact-SQL)
READTEXT (Transact-SQL)
real (Transact-SQL)
RECEIVE (Transact-SQL)
RECONFIGURE (Transact-SQL)
REPLACE (Transact-SQL)
REPLICATE (Transact-SQL)
Reservierte Schlüsselwörter (Transact-SQL)
RESTORE-Anweisungen für das Wiederherstellen und Verwalten von Sicherungen (Transact-SQL)
RESTORE MASTER KEY (Transact-SQL)
RESTORE SERVICE MASTER KEY (Transact-SQL)
RETURN (Transact-SQL)
REVERSE (Transact-SQL)
REVERT (Transact-SQL)
REVOKE (Transact-SQL)
RIGHT (Transact-SQL)
ROLLBACK TRANSACTION (Transact-SQL)
ROLLBACK WORK (Transact-SQL)
ROUND (Transact-SQL)
ROW_NUMBER (Transact-SQL)
ROWCOUNT_BIG (Transact-SQL)
rowversion (Transact-SQL)
RTRIM (Transact-SQL)
SAVE TRANSACTION (Transact-SQL)
SCHEMA_ID (Transact-SQL)
SCHEMA_NAME (Transact-SQL)
SCOPE_IDENTITY (Transact-SQL)
Suchbedingung (Transact-SQL)
SELECT @local_variable (Transact-SQL)
SELECT (Transact-SQL)
SEND (Transact-SQL)
SERVERPROPERTY (Transact-SQL)
SESSION_USER (Transact-SQL)
SESSIONPROPERTY (Transact-SQL)
SET @local_variable (Transact-SQL)
SET (Transact-SQL)
SETUSER (Transact-SQL)
SHUTDOWN (Transact-SQL)
SIGN (Transact-SQL)
SignByAsymKey (Transact-SQL)
SignByCert (Transact-SQL)
SIN (Transact-SQL)
smalldatetime (Transact-SQL)
smallint (Transact-SQL)
smallmoney (Transact-SQL)
SOME | ANY (Transact-SQL)
SOUNDEX (Transact-SQL)
SPACE (Transact-SQL)
sql_variant (Transact-SQL)
SQL_VARIANT_PROPERTY (Transact-SQL)
SQRT (Transact-SQL)
SQUARE (Transact-SQL)
STATS_DATE (Transact-SQL)
STDEV (Transact-SQL)
STDEVP (Transact-SQL)
STR (Transact-SQL)
STUFF (Transact-SQL)
SUBSTRING (Transact-SQL)
SUM (Transact-SQL)
SUSER_ID (Transact-SQL)
SUSER_NAME (Transact-SQL)
SUSER_SID (Transact-SQL)
SUSER_SNAME (Transact-SQL)
SWITCHOFFSET (Transact-SQL)
SYSDATETIME (Transact-SQL)
SYSDATETIMEOFFSET (Transact-SQL)
SYMKEYPROPERTY (Transact-SQL)
Gespeicherte Systemprozeduren (Transact-SQL)
Systemtabellen (Transact-SQL)
Systemsichten (Transact-SQL)
SYSUTCDATETIME (Transact-SQL)
sys.fn_builtin_permissions (Transact-SQL)
sys.fn_translate_permissions (Transact-SQL)
sys.fn_validate_plan_guide (Transact-SQL)
sys.login_token (Transact-SQL)
sys.user_token (Transact-SQL)
SYSTEM_USER (Transact-SQL)
table (Transact-SQL)
Tabellenwertkonstruktor (Transact-SQL)
TAN (Transact-SQL)
TERTIARY_WEIGHTS (Transact-SQL)
text (Transact-SQL)
TEXTPTR (Transact-SQL)
TEXTVALID (Transact-SQL)
time (Transact-SQL)
tinyint (Transact-SQL)
TODATETIMEOFFSET (Transact-SQL)
TOP (Transact-SQL)
Ablaufverfolgungsflags (Transact-SQL)
Transaktionen (Transact-SQL)
TRY...CATCH (Transact-SQL)
TRIGGER_NESTLEVEL (Transact-SQL)
TRUNCATE TABLE (Transact-SQL)
TYPE_ID (Transact-SQL)
TYPE_NAME (Transact-SQL)
TYPEPROPERTY (Transact-SQL)
UNICODE (Transact-SQL)
UNION (Transact-SQL)
uniqueidentifier (Transact-SQL)
UPDATE (Transact-SQL)
UPDATE() (Transact-SQL)
UPDATE STATISTICS (Transact-SQL)
UPDATETEXT (Transact-SQL)
UPPER (Transact-SQL)
USE (Transact-SQL)
USER (Transact-SQL)
USER_ID (Transact-SQL)
USER_NAME (Transact-SQL)
VAR (Transact-SQL)
varbinary (Transact-SQL)
varchar (Transact-SQL)
VARP (Transact-SQL)
VerifySignedByCert (Transact-SQL)
VerifySignedByAsymKey (Transact-SQL)
WAITFOR (Transact-SQL)
WHERE (Transact-SQL)
WHILE (Transact-SQL)
WITH common_table_expression (Transact-SQL)
WITH XMLNAMESPACES (Transact-SQL)
WRITETEXT (Transact-SQL)
XACT_STATE (Transact-SQL)
xml (Transact-SQL)
xml_schema_namespace (Transact-SQL)
YEAR (Transact-SQL)
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RAND (Transact-SQL)

SQL Server 2008

Gibt ausschließlich einen pseudozufälligen float-Wert von 0 bis 1 zurück.

Themenlink (Symbol) Transact-SQL-Syntaxkonventionen

Kopieren 

RAND ( [ seed ] )
seed

Ein ganzzahliger Ausdruck (tinyint, smallint oder int), der den Ausgangswert zurückgibt. Wenn seed nicht angegeben ist, wird von SQL Server Database Engine (Datenbankmodul) ein zufälliger Ausgangswert zugewiesen. Für einen bestimmten Ausgangswert ist das zurückgegebene Ergebnis immer gleich.

Bei wiederholten Aufrufen von RAND() mit demselben Ausgangswert werden dieselben Ergebnisse zurückgegeben.

Wenn für eine bestimmte Verbindung RAND() mit einem angegebenen Ausgangswert aufgerufen wird, führen alle nachfolgenden Aufrufe von RAND() zu Ergebnissen, die auf dem RAND()-Ausgangsaufruf basieren. Durch die folgende Abfrage wird z. B. immer dieselbe Nummernreihenfolge zurückgegeben.

Kopieren 
SELECT RAND(100), RAND(), RAND()

Das folgende Beispiel führt zu vier Zufallszahlen, die von der RAND-Funktion generiert werden.

Kopieren 
DECLARE @counter smallint;
SET @counter = 1;
WHILE @counter < 5
   BEGIN
      SELECT RAND() Random_Number
      SET @counter = @counter + 1
   END;
GO
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