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SQL

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Beispiel alter table statement

Tuesday, August 28th, 2007

alter table table_name add ( column1_name column1_datatype column1_constraint, column2_name column2_datatype column2_constraint, column3_name column3_datatype column3_constraint );

ORA-00054: resource busy and acquire with NOWAIT specified

Monday, August 27th, 2007

Identifizieren des table lock  select object_name, o.object_id from user_objects o, v$locked_object l where o.object_id = l.object_id; Freigeben des tables 

Codebeispiel exist condition

Monday, August 6th, 2007

SELECT *

Codebeispiel SQL – EXISTS condition

Monday, August 6th, 2007

SELECT columns

insert Statement – Beispiel, einfügen eines Datesatzes

Sunday, August 5th, 2007

INSERT INTO stocks

insert statement Beispiel – Verhindern das Datensätze mehrfach inserted werden.

Sunday, August 5th, 2007

Wenn im table ein primary key auf ISIN vorhanden ist

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