Posts by Fernando c • 56 points

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  A: How to add a "Constraint Unique" to a column without deleting the table or column

  hello. I tried it like this and it worked: alter table usuario add unique(login);

  postgresql constraint single-restriction

  answered 6 years, 9 months ago Fernando c 56

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  A: Input fields are not being filled in according to value

  ola; save and edit follow somewhat different logics; try so, briefly: 1 - your table must have a primary key column (Let’s call it id); 2 - vc need to pass this id to the selected record usually by…

  php mysql table value

  answered 6 years, 10 months ago Fernando c 56

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  A: Invalid SQL identifier - Oracle

  vc did not create the Prodid column in this table (Industrialunit). also this column should be of the same type and not null in the Production table. check out.

  sql

  answered 6 years, 11 months ago Fernando c 56