16 lines
417 B
PL/PgSQL
16 lines
417 B
PL/PgSQL
create or replace function comptaproc.get_letter_jnt(a bigint) returns bigint
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as
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$_$
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declare
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nResult bigint;
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begin
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select jl_id into nResult from jnt_letter join letter_deb using (jl_id) where j_id = a;
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if NOT FOUND then
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select jl_id into nResult from jnt_letter join letter_cred using (jl_id) where j_id = a;
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if NOT found then
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return null;
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end if;
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end if;
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return nResult;
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end;
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$_$ language plpgsql
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