I've been trying to put length constraint , so that it would not take string whose length is more or less than 5
Create Table Statement:
create table exp(id char(10),name varchar(50));
Add Constraint Statement:
alter table exp add constraint exp1 check(length(id)=5);
Insert Statement:
insert into exp(id,name) values('10001','Abhi');
But whenever i try to insert data like the above written it shows
insert into exp(id,name) values('10001','Abhi')
*
ERROR at line 1:
ORA-02290: check constraint (VIT.EXP1) violated
Change char(10) to varchar2(10):
create table exp(id varchar2(10),name varchar(50));
A char(10) column has always a length of 10. Regardsless your insert statement. That's why you get the error.
Related
Table definition:
CREATE TABLE IF NOT EXISTS public.test
(
"Id" integer NOT NULL GENERATED ALWAYS AS IDENTITY (INCREMENT 1 START 1 MINVALUE 1 MAXVALUE 2147483647 CACHE 1),
"SomeColumn" character(100) COLLATE pg_catalog."default",
CONSTRAINT test_pkey PRIMARY KEY ("Id")
)
TABLESPACE pg_default;
ALTER TABLE IF EXISTS public.test
OWNER to postgres;
I am trying this query:
INSERT INTO public.test VALUES ('testData');
But PostgreSQL throws this error:
ERROR: invalid input syntax for type integer: "testData"
LINE 1: INSERT INTO public.test VALUES ('testData');
I know this is valid in SQL Server. Is there a way the achieve this behaviour in PostgreSQL?
I do not want to specify the column names. Columns are defined in the order, but the identity column does not exist in the query.
I want to not give the column names
That's a bad idea. You should always specify the target columns for an INSERT statement. Especially if you want to skip some, but not others.
However, if you insist on bad coding style, you can use the DEFAULT keyword
INSERT INTO public.test VALUES (DEFAULT, 'testData');
I have a table that I create independently, the primary key is set with the serial type and a sequence applied to the table, but when I try to insert a value a NULL CONSTRAINT error is thrown and the return looks like null was passed, am I missing something in the INSERT statement?
SQL for table generation:
DROP TABLE IF EXISTS public."Team" CASCADE;
CREATE TABLE public."Team" (
"IdTeam" serial PRIMARY KEY,
name text NOT null,
CONSTRAINT "pKeyTeamUnique" UNIQUE ("IdTeam")
);
ALTER TABLE public."Team" OWNER TO postgres;
DROP SEQUENCE IF EXISTS public."Team_IdTeam_seq" CASCADE;
CREATE SEQUENCE public."Team_IdTeam_seq"
AS integer
START WITH 1
INCREMENT BY 1
NO MINVALUE
NO MAXVALUE
CACHE 1;
ALTER TABLE public."Team_IdTeam_seq" OWNER TO postgres;
ALTER SEQUENCE public."Team_IdTeam_seq" OWNED BY public."Team"."IdTeam";
SQL for insert :
INSERT INTO public."Team" (name) values ('Manchester Untited');
The returning error:
ERROR: null value in column "IdTeam" violates not-null constraint
DETAIL: Failing row contains (null, Manchester Untited).
SQL state: 23502
I am baffled. Why are you trying to define your own sequence when the column is already defined as serial?
Second, a primary key constraint is already unique. There is no need for a separate unique constraint.
Third, quoting identifiers just makes the code harder to write and to read.
You can just do:
DROP TABLE IF EXISTS public.Team CASCADE;
CREATE TABLE public.Team (
IdTeam serial PRIMARY KEY,
name text NOT null
);
INSERT INTO public.Team (name)
VALUES ('Manchester Untited');
Dropping the sequence causes the default definition for the IdTeam column to be dropped. After recreating the sequence you will have to recreate the default definition.
Just learning the SQL language. Trying to insert data into a table but keep getting the following error:
"The INSERT statement conflicted with the CHECK constraint
"JOB_JOBCODE". The conflict occurred in database "qwerty", table
"dbo.Job", column 'jobCode'."
Code:
This is the table I'm creating, nothing fancy
CREATE TABLE Job(
jobCode char(4),
jobdesc varchar(50),
--ADD CONSTRAINT PK JPB CODE
CONSTRAINT PK_JobCode PRIMARY KEY(jobCode) ,
CONSTRAINT JOB_JOBCODE CHECK (jobCode in ('CAST’, ‘ENGI’, ‘INSP’, ‘PMGR')) );
This is the data that I'm inserting
INSERT INTO Job VALUES ('CAST', 'Cast Member);
Any help would be appreciated, Im not sure what I'm doing wrong
Use this query for inserting values into Job table
INSERT INTO Job VALUES ('CAST', 'Cast Member');
Run this to fix your check literal error:
ALTER TABLE Job DROP JOB_JOBCODE
ALTER TABLE Job ADD CONSTRAINT JOB_JOBCODE CHECK (jobCode IN ('CAST', 'ENGI', 'INSP', 'PMGR'))
Then use the explicit column form of the insert:
INSERT INTO Job (jobCode, jobdesc)
VALUES ('CAST', 'Cast Member')
Make sure to use the proper literal delimiter '.
I have a sql table and here is my column which gives error. When I try to add a new record which has null active_status to this table, It gives "not-null property references a null or transient value" error. Is there any idea?
active_status character varying(30) NOT NULL DEFAULT 'NEW'::character varying,
EDIT: I have created a new simple table;
CREATE TABLE mytable
(
"MyData" character varying(30) NOT NULL DEFAULT 'NEW'::character varying,
CONSTRAINT mytable_pkey PRIMARY KEY ("MyData" )
)
WITH (
OIDS=FALSE
);
ALTER TABLE mytable
OWNER TO postgres;
When I try to insert a string, it runs fine;
insert into mytable values('ssss');
But when I try to insert a null value it gives error;
insert into mytable values(null);
ERROR: null value in column "MyData" violates not-null constraint
SQL state: 23502
With this statement:
insert into mytable values(null);
you explicitely requested to insert a NULL value into the column MyData and therefor you get the error message.
If you want to use the default value, you need to tell the DBMS to do so:
insert into mytable values (default);
Btw: it is much better coding style to always specify the columns in the insert statement:
insert into mytable ("MyData") values (null);
And another thing: you should avoid using quoted identifiers ("MyData" vs. MyData) , they simply are more trouble than it's worth it.
You need to first create the column with NULL constraint. Update all rows for that column with the default values. Alter the column to have Not Null constraint
I created a SQL table an enforced check constraints on it, but now when I try to insert data I get an error message.
create table BranchTel
(
BrRegNo varchar(10) REFERENCES Branch(BrRegNo),
TelNo char(12)
PRIMARY KEY(BrRegNo)
)
ALTER TABLE BranchTel Add Constraint BranchTelTelNo
Check(TelNo LIKE '[0-9][0-9]-[0-9][0-9][0-9]-[0-9][0-9][0-9][0-9][0-9][0-9][0-9]')
Insert statement
insert into BranchTel values('BG-205','940112571963')
Error message
The INSERT statement conflicted with the CHECK constraint "BranchTelTelNo". The conflict occurred in database "StudentDetails", table "dbo.BranchTel", column 'TelNo'.
The statement has been terminated.
Insert statement
insert into BranchTel values('BG-205','94-011-2571963')
Error message
String or binary data would be truncated.
The statement has been terminated.
Please help me
Your check constraint is 14 characters long (you need to count the - as well), while the field size is 12.
Additionally, 940112571963 does not conform to the pattern xx-xxx-xxxxxxx you have defined in your check constraint.
You need to change the field size to 14 and when inserting make sure the dashes are in the right place:
insert into BranchTel values('BG-205','94-011-2571963')
Insert statement insert into BranchTel values('BG-205','94-011-2571963') Error message String or binary data would be truncated. The statement has been terminated.
Here the value 94-011-2571963 length is greater than 12 which obviously violates the check constraint.