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The following sql statement drops the existing table shippers.
Drop table. Sql tabellenbearbeitung drop table manchmal ist es wuenschenswert eine tabelle aus welchem grund auch immer aus der datenbank zu loeschen. Drop table transact sql 05122017. Sql drop or delete table the sql drop table statement is used to remove a table definition and all the data indexes triggers constraints and permission specifications for that table. Be careful before dropping a table.
You can perform ddl operations such as alter table drop table create index on a temporary table only when no session is bound to it. Basic oracle drop table example. The sql drop table statement. Sql create db sql drop db sql backup db sql create table sql drop table sql alter table sql constraints sql not null sql unique sql primary key sql foreign key sql check sql default sql index sql auto increment sql dates sql views sql injection sql hosting sql references sql keywords.
3 minutes to read 1. Removes one or more table definitions and all data indexes triggers constraints and permission specifications for those tables. The drop table statement is used to drop an existing table in a database. Waere dies nicht moeglich wuerde die verwaltung der datenbank fuer die administratoren nach einiger zeit unnoetig verkompliziert.
Lets look at some examples of using the drop table statement. Sql drop table example. Nach dem ausfuehren des drop befehls wird keine sicherheitsabfrage mehr erscheinen. Drop table productvendor1.
Ablegen einer tabelle in einer anderen datenbank dropping a table in another database. Oracle drop table examples. Unfortunately mysql does not have the drop table like statement that can remove tables based on pattern matching. Mysql drop table based on a pattern suppose that you have many tables whose names start with test in your database and you want to remove all of them using a single drop table statement.
Im folgenden beispiel wird die salesperson2 tabelle in der adventureworks2012 adventureworks2012 datenbank geloescht. Try it yourself. Deleting a table will result in loss of complete information stored in the table. The following create table statement creates persons table for the demonstration.
The table must be in your own schema or you must have the drop any table system privilege. Die tabelle wird sofort geloescht sodass man sich im klaren sein sollte ob man wirklich die richtige tabelle angewaehlt hat. Create table persons personid number firstname varchar2 50 not null lastname varchar2 50 not null primary key personid.
