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viernes, 22 de mayo de 2020

EXAMEN DE BASE DE DATOS


domingo, 17 de mayo de 2020

CONSULTAR COMO ESTA HECHO UN CONSTRAINT ORACLE



SELECT * FROM DBA_CONSTRAINTS WHERE CONSTRAINT_NAME='R_2819'

SELECT * FROM all_constraints WHERE CONSTRAINT_NAME='R_2819'


miércoles, 13 de mayo de 2020

MERGE


MERGE into GISTIC.ENCUESTAABRIL2018_1 t1

using (SELECT * FROM GISTIC.DOMINIO_CURSO_2020) t2

on (UPPER(t1.CURSO)=UPPER(t2.KEY_ID))

when matched then update set t1.ENABLED_FLAG='N',t1.ATTRIBUTE50='CC 4134',END_DATE_ACTIVE=SYSDATE

Descargar cliente de Oracle 19c

  Oracle Database 19c Download for Microsoft Windows x64 (64-bit) https://www.oracle.com/database/technologies/oracle19c-windows-downloads.html

 
 
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