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I just started learning PostgreSQL. I tried to create a table:

create table diagnosis(
    mkb10 char(5),
    opis varchar(100) not null,
    constraint pk_diagnosis primary key (mkb10)
);

But I get this error:

ERROR: syntax error at or near "char"

1 Answer 1

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Works for me.

fiddle

Except that I never use the outdated data type char(n). And neither should you. See:

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