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declare
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object_exists exception;
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pragma exception_init (object_exists , -00955);
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begin
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execute immediate 'ALTER TABLE CAJA_DIVERSOS_PAGO
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ADD CONSTRAINT FK_CAJA_DIVERSOS_PAGO_OCD FOREIGN KEY (OCD_ID)
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REFERENCES OCD (OCD_ID)';
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exception when object_exists then null;
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end; |