Building a conditional check constraint The 2019 Stack Overflow Developer Survey Results Are InCannot drop nonexistent constraint and cannot create it eitherReusing index in constraintsCannot set MEMORY_TARGET for Oracle 11.2unique constraint violatedHow to get the second string in the ORA-02296 error to show something meaningfulCheck constraint on nullable data, how to approach?Postgres: How is SET NOT NULL “more efficient” than CHECK constraintPartially-Unique Check ConstraintsCheck all values in a set with PostgreSQLtruncate table with foreign keys
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Building a conditional check constraint
The 2019 Stack Overflow Developer Survey Results Are InCannot drop nonexistent constraint and cannot create it eitherReusing index in constraintsCannot set MEMORY_TARGET for Oracle 11.2unique constraint violatedHow to get the second string in the ORA-02296 error to show something meaningfulCheck constraint on nullable data, how to approach?Postgres: How is SET NOT NULL “more efficient” than CHECK constraintPartially-Unique Check ConstraintsCheck all values in a set with PostgreSQLtruncate table with foreign keys
.everyoneloves__top-leaderboard:empty,.everyoneloves__mid-leaderboard:empty,.everyoneloves__bot-mid-leaderboard:empty margin-bottom:0;
I'm trying to build a conditional check constraint for my table TBL_AFIL, which has two fields:
- Fec_Renun DATE
- flg_afil INTEGER
Constraint: IF flg_afil=1 THEN Fec_Renun can not be NULL.
ALTER TABLE TBL_AFIL
ADD CONSTRAINT FecRenun_Not_Null CHECK (Fec_Renun IS not NULL and flg_afil =1) ;
But it throws this error:
ORA-02293: cannot validate (FecRenun_Not_Null) - check constraint violated
But when I run this query, it returns 0 rows.
SELECT * FROM TBL_AFIL
WHERE FEC_RENUN IS NULL
AND FLG_AFIL =1;
I know that to this constraint I could add ENABLE NOVALIDATE, but I'm intrigued why can't build this constraint.
oracle check-constraints
asked 13 hours ago
DelmonteDelmonte
3894820
add a comment |
I'm trying to build a conditional check constraint for my table TBL_AFIL, which has two fields:
- Fec_Renun DATE
- flg_afil INTEGER
Constraint: IF flg_afil=1 THEN Fec_Renun can not be NULL.
ALTER TABLE TBL_AFIL
ADD CONSTRAINT FecRenun_Not_Null CHECK (Fec_Renun IS not NULL and flg_afil =1) ;
But it throws this error:
ORA-02293: cannot validate (FecRenun_Not_Null) - check constraint violated
But when I run this query, it returns 0 rows.
SELECT * FROM TBL_AFIL
WHERE FEC_RENUN IS NULL
AND FLG_AFIL =1;
I know that to this constraint I could add ENABLE NOVALIDATE, but I'm intrigued why can't build this constraint.
oracle check-constraints
asked 13 hours ago
DelmonteDelmonte
3894820
add a comment |
I'm trying to build a conditional check constraint for my table TBL_AFIL, which has two fields:
- Fec_Renun DATE
- flg_afil INTEGER
Constraint: IF flg_afil=1 THEN Fec_Renun can not be NULL.
ALTER TABLE TBL_AFIL
ADD CONSTRAINT FecRenun_Not_Null CHECK (Fec_Renun IS not NULL and flg_afil =1) ;
But it throws this error:
ORA-02293: cannot validate (FecRenun_Not_Null) - check constraint violated
But when I run this query, it returns 0 rows.
SELECT * FROM TBL_AFIL
WHERE FEC_RENUN IS NULL
AND FLG_AFIL =1;
I know that to this constraint I could add ENABLE NOVALIDATE, but I'm intrigued why can't build this constraint.
oracle check-constraints
asked 13 hours ago
DelmonteDelmonte
3894820
I'm trying to build a conditional check constraint for my table TBL_AFIL, which has two fields:
- Fec_Renun DATE
- flg_afil INTEGER
Constraint: IF flg_afil=1 THEN Fec_Renun can not be NULL.
ALTER TABLE TBL_AFIL
ADD CONSTRAINT FecRenun_Not_Null CHECK (Fec_Renun IS not NULL and flg_afil =1) ;
But it throws this error:
ORA-02293: cannot validate (FecRenun_Not_Null) - check constraint violated
But when I run this query, it returns 0 rows.
SELECT * FROM TBL_AFIL
WHERE FEC_RENUN IS NULL
AND FLG_AFIL =1;
I know that to this constraint I could add ENABLE NOVALIDATE, but I'm intrigued why can't build this constraint.
oracle check-constraints
oracle check-constraints
asked 13 hours ago
DelmonteDelmonte
3894820
asked 13 hours ago
DelmonteDelmonte
3894820
asked 13 hours ago
DelmonteDelmonte
3894820
asked 13 hours ago
DelmonteDelmonte
3894820
asked 13 hours ago
DelmonteDelmonte
3894820
3894820
add a comment |
add a comment |
1 Answer
1
active
oldest
votes
CHECK (NOT (flag_afil = 1 AND fec_renum IS NULL))
answered 12 hours ago
ypercubeᵀᴹypercubeᵀᴹ
78.4k11137221
Awesome. Thanks.
– Delmonte
12 hours ago
Equivalently,CHECK (flag_afil != 1 OR fec_renum IS NOT NULL))(from De Morgan's Laws), or since the flag can only have one of two values,CHECK (flag_afil = 0 OR fec_renum IS NOT NULL)). I find the last to be the most intuitive.
– jpmc26
5 hours ago
add a comment |
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1 Answer
1
active
oldest
votes
1 Answer
1
active
oldest
votes
active
oldest
votes
active
oldest
votes
CHECK (NOT (flag_afil = 1 AND fec_renum IS NULL))
answered 12 hours ago
ypercubeᵀᴹypercubeᵀᴹ
78.4k11137221
Awesome. Thanks.
– Delmonte
12 hours ago
Equivalently,CHECK (flag_afil != 1 OR fec_renum IS NOT NULL))(from De Morgan's Laws), or since the flag can only have one of two values,CHECK (flag_afil = 0 OR fec_renum IS NOT NULL)). I find the last to be the most intuitive.
– jpmc26
5 hours ago
add a comment |
CHECK (NOT (flag_afil = 1 AND fec_renum IS NULL))
answered 12 hours ago
ypercubeᵀᴹypercubeᵀᴹ
78.4k11137221
Awesome. Thanks.
– Delmonte
12 hours ago
Equivalently,CHECK (flag_afil != 1 OR fec_renum IS NOT NULL))(from De Morgan's Laws), or since the flag can only have one of two values,CHECK (flag_afil = 0 OR fec_renum IS NOT NULL)). I find the last to be the most intuitive.
– jpmc26
5 hours ago
add a comment |
CHECK (NOT (flag_afil = 1 AND fec_renum IS NULL))
answered 12 hours ago
ypercubeᵀᴹypercubeᵀᴹ
78.4k11137221
CHECK (NOT (flag_afil = 1 AND fec_renum IS NULL))
answered 12 hours ago
ypercubeᵀᴹypercubeᵀᴹ
78.4k11137221
answered 12 hours ago
ypercubeᵀᴹypercubeᵀᴹ
78.4k11137221
answered 12 hours ago
ypercubeᵀᴹypercubeᵀᴹ
78.4k11137221
answered 12 hours ago
ypercubeᵀᴹypercubeᵀᴹ
78.4k11137221
78.4k11137221
Awesome. Thanks.
– Delmonte
12 hours ago
Equivalently,CHECK (flag_afil != 1 OR fec_renum IS NOT NULL))(from De Morgan's Laws), or since the flag can only have one of two values,CHECK (flag_afil = 0 OR fec_renum IS NOT NULL)). I find the last to be the most intuitive.
– jpmc26
5 hours ago
add a comment |
Awesome. Thanks.
– Delmonte
12 hours ago
Equivalently,CHECK (flag_afil != 1 OR fec_renum IS NOT NULL))(from De Morgan's Laws), or since the flag can only have one of two values,CHECK (flag_afil = 0 OR fec_renum IS NOT NULL)). I find the last to be the most intuitive.
– jpmc26
5 hours ago
Awesome. Thanks.
– Delmonte
12 hours ago
Awesome. Thanks.
– Delmonte
12 hours ago
Equivalently,
CHECK (flag_afil != 1 OR fec_renum IS NOT NULL)) (from De Morgan's Laws), or since the flag can only have one of two values, CHECK (flag_afil = 0 OR fec_renum IS NOT NULL)). I find the last to be the most intuitive.– jpmc26
5 hours ago
Equivalently,
CHECK (flag_afil != 1 OR fec_renum IS NOT NULL)) (from De Morgan's Laws), or since the flag can only have one of two values, CHECK (flag_afil = 0 OR fec_renum IS NOT NULL)). I find the last to be the most intuitive.– jpmc26
5 hours ago
add a comment |
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