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SQL Delete Statement

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SQL DELETE Statement

L�schungbefehl entfernt gesamte Reihen von einer Tabelle.

Syntax:

DELETE FROM employees WHERE id='4';

F�r das L�schen der mehrfachen Reihen

L�schung kann mit SQL Operatoren sowie subqueries verwenden, irgendwelche oder alle Reihen zu l�schen, die auf unser Konditional zutreffen.

Syntax

DELETE * FROM employees;

Anmerkung: Die oben genannte Beispiell�schung jede Reihe von der Angestellttabelle

SQL Truncate statement

Truncate entfernt alle Reihen von der Tabelle und kann nicht Rollbacked sein, w�hrend L�schung alle oder spezifische Reihen von der Tabelle entfernt und sein kann rollbacked. Truncate wird f�r SEHR GROSSE Datenbanken verwendet u. arbeitet L�schung leistungsf�hig auf kleiner Datenbanktabelle.

Syntax:

TRUNCATE TABLE employees;

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Keywords: sql delete statement, sql delete syntax, sql delete command, sql delete table

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