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All main topics / Informatik / SQL

SQL (26 Cards)

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Was ist der Unterschied zwischen CHAR und VARCHAR?
CHAR: fixe Länge, auch wenn weniger Daten gespeichert werden
VARCHAR: variable Länge
Tags: CHAR, Datenbank, datentyp, sql, VARCHAR
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Flashcard set info:
Author: Stejan
Main topic: Informatik
Topic: SQL
School / Univ.: ZbW
City: St. Gallen
Published: 04.03.2011
Tags: sql database datenbank
 
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All cards (26)
ALL (1)
AUTO_INCREMENT (1)
bedingung (1)
befehl (1)
case sensitive (1)
CHAR (1)
column (1)
Constraint (1)
constraints (1)
create (3)
CREATE (2)
data dictionary (2)
database (1)
datenbank (2)
Datenbank (24)
datenbasis (2)
datentyp (1)
dbms (1)
dbs (1)
ddl (3)
definition (2)
DELETE (1)
DESC (1)
detail-tabelle (2)
DISTINCT (1)
dml (2)
dql (2)
FOREIGN KEY (1)
FROM (1)
INSERT (2)
join (1)
kartesisches produkt (1)
like (1)
master-tabelle (2)
mysql (1)
NULL (1)
ON DELETE CASCADE (1)
ON DELETE SET NULL (1)
ON UPDATE CASCADE (1)
ON UPDATE SET NULL (1)
ORDER BY (1)
Primärschlüssel (1)
PRIMARY KEY (3)
referenz (1)
relationen algebra (1)
schema (1)
SELECT (3)
selektion (1)
spalte (1)
sql (18)
SQL (3)
statement (1)
tabelle (1)
table (4)
TABLE (1)
union (2)
UNION (1)
UPDATE (1)
VARCHAR (1)
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