I am using the COPY FROM command to load data from a file.
The table is defined with identity column, which is not part of the file.
CREATE TABLE APP2DBMAP (
FIELD_ID integer NOT NULL GENERATED BY DEFAULT AS IDENTITY,
FIELD_NAME varchar(128) ,
TABLE_NAME varchar(128) ,
COLUMN_NAME varchar(128) ,
CONSTRAINT PK_APP2DBMAP PRIMARY KEY ( FIELD_ID )
);
I executed the following COPY FROM command, the file contains 3 values in 1 row.
copy app2dbmap (field_name, table_name, column_name) from '/opt/NetMgr/data/templ_db.txt' DELIMITER ',' ;
And I got the following error:
ERROR: null value in column "field_id" violates not-null constraint
DETAIL: Failing row contains (null, 'aaa', 'bbb', 'ccc').
CONTEXT: COPY app2dbmap, line 1: "'aaa','bbb','ccc'"
I tried to change the column description of field_id to serial, and it did work fine.
I don't understand why it doesn't work with the original table definition.
The problem is you have specified the field_id to be a not null value and hence when the file is passing null as a value, your error is there.
If you want an auto increment id, Use,
CREATE TABLE APP2DBMAP (
FIELD_ID smallserial NOT NULL,
FIELD_NAME varchar(128) ,
TABLE_NAME varchar(128) ,
COLUMN_NAME varchar(128) ,
CONSTRAINT PK_APP2DBMAP PRIMARY KEY ( FIELD_ID )
);
You can also use bigserial(int4) instead of smallint(int8)
or you can give a default value,
CREATE TABLE APP2DBMAP (
FIELD_ID integer NOT NULL default 0,
FIELD_NAME varchar(128) ,
TABLE_NAME varchar(128) ,
COLUMN_NAME varchar(128) ,
CONSTRAINT PK_APP2DBMAP PRIMARY KEY ( FIELD_ID )
);
You will have to pass something, you cannot pass null in a not null column
Related
I have a table with rows in it (source) that I am trying to insert into another table (target). The target has an exclusion constraint in place. However, when I do this, some of the rows fail the exclusion constraint. I would like to be able to select these rows in the source, that fail the exclusion constraint. Is this possible?
create table target(
id bigint primary key
,external_data_source_id bigint not null
,external_id text not null
,external_id_domain_id bigint not null
,internal_id bigint not null
,valid_period tstzrange not null
,EXCLUDE USING gist (external_data_source_id with = , external_id_domain_id with =, internal_id with =, external_id with =, valid_period WITH &&)
);
create table source(
id bigint primary key
,external_data_source_id bigint not null
,external_id text not null
,external_id_domain_id bigint not null
,internal_id bigint not null
,valid_period tstzrange not null
);
insert into source
select 1,1,'text',1,1,tstzrange('2000-01-01','2001-01-01');
insert into source
select 2,1,'text',1,1,tstzrange('2000-01-01','2001-01-01');
insert into source
select 1,'text',1,1,tstzrange('2002-01-01','2004-01-01');
insert into target
select * from source;
gives
Error: ERROR: conflicting key value violates exclusion constraint "target_external_data_source_id_external_id_domain_id_inter_excl"
Detail: Key (external_data_source_id, external_id_domain_id, internal_id, external_id, valid_period)=(1, 1, 1, text, ["2000-01-01 00:00:00+01","2001-01-01 00:00:00+01")) conflicts with existing key (external_data_source_id, external_id_domain_id, internal_id, external_id, valid_period)=(1, 1, 1, text, ["2000-01-01 00:00:00+01","2001-01-01 00:00:00+01")).
SQLState: 23P01
ErrorCode: 0
I would like to select the rows in source that fail this exclusion constraint.
You can use condition from the exclusion constraint in an exists query:
select s1.*
from source s1
where exists (select *
from source s2
where (s2.external_data_source_id, s2.external_id_domain_id,
s2.internal_id, s2.external_id)
= (s1.external_data_source_id, s1.external_id_domain_id,
s1.internal_id, s1.external_id)
and s1.valid_period && s2.valid_period
and s1.id <> s2.id
);
Online example: https://rextester.com/PDOE78609
I am using NetBeans to help me build a REST web service. My steps taken have been the following:
New Project -> Web Application
New File -> Web Service -> RESTFul WebService from Database
Select the Datasource (which is a MySQL DB)
Everything generates, right click on project -> Test RESTFul
WebServices
When I want to test GET(application/XML), I can get a result returned fine, I can also get an XML response from a Jersey Client I made after the fact. But when I test the JSON functions, I always seem to get errors:
exception
javax.servlet.ServletException: org.glassfish.jersey.server.ContainerException: java.lang.NoClassDefFoundError: Could not initialize class org.eclipse.persistence.jaxb.BeanValidationHelper
root cause
org.glassfish.jersey.server.ContainerException:
java.lang.NoClassDefFoundError: Could not initialize class
org.eclipse.persistence.jaxb.BeanValidationHelper
root cause
java.lang.NoClassDefFoundError: Could not initialize class org.eclipse.persistence.jaxb.BeanValidationHelper
My Database schema, which would really be the only thing I've written myself, is the following:
-- ****************** SqlDBM: MySQL ******************;
-- ***************************************************;
DROP TABLE `roles`;
DROP TABLE `orders`;
DROP TABLE `inventory`;
DROP TABLE `users`;
DROP TABLE `warehouses`;
DROP TABLE `inventory`;
DROP TABLE `addresses`;
DROP TABLE `products`;
-- ************************************** `addresses`
CREATE TABLE `addresses`
(
`addressID` INTEGER NOT NULL AUTO_INCREMENT ,
`streetNum` INTEGER NOT NULL ,
`streetName` VARCHAR(45) NOT NULL ,
`unitNum` INTEGER ,
`city` VARCHAR(45) NOT NULL ,
`province` VARCHAR(45) NOT NULL ,
`postalCode` VARCHAR(6) NOT NULL ,
PRIMARY KEY (`addressID`)
);
-- ************************************** `products`
CREATE TABLE `products`
(
`productID` INTEGER NOT NULL AUTO_INCREMENT ,
`productNO` VARCHAR(40) NOT NULL ,
`productName` VARCHAR(80) NOT NULL ,
`productDesc` VARCHAR(160) NOT NULL ,
`cost` REAL NOT NULL ,
`price` REAL NOT NULL ,
PRIMARY KEY (`productID`)
);
-- ************************************** `users`
CREATE TABLE `users`
(
`userID` INTEGER NOT NULL AUTO_INCREMENT ,
`firstName` VARCHAR(20) NOT NULL ,
`lastName` VARCHAR(20) NOT NULL ,
`dateOfBirth` DATE NOT NULL ,
`email` VARCHAR(45) NOT NULL ,
`password` CHAR(64) NOT NULL ,
`addressID` INTEGER NOT NULL ,
PRIMARY KEY (`userID`),
KEY `fkIdx_87` (`addressID`),
CONSTRAINT `FK_87` FOREIGN KEY `fkIdx_87` (`addressID`) REFERENCES `addresses` (`addressID`)
);
-- ************************************** `warehouses`
CREATE TABLE `warehouses`
(
`warehouseID` INTEGER NOT NULL AUTO_INCREMENT ,
`addressID` INTEGER NOT NULL ,
PRIMARY KEY (`warehouseID`),
KEY `fkIdx_58` (`addressID`),
CONSTRAINT `FK_58` FOREIGN KEY `fkIdx_58` (`addressID`) REFERENCES `addresses` (`addressID`)
);
-- ************************************** `inventory`
CREATE TABLE `inventory`
(
`id` INTEGER NOT NULL AUTO_INCREMENT ,
`productID` INTEGER NOT NULL ,
`warehouseID` INTEGER NOT NULL ,
`expiry` DATE NOT NULL ,
`productID_1` INTEGER NOT NULL ,
PRIMARY KEY (`id`),
KEY `fkIdx_31` (`productID_1`),
CONSTRAINT `FK_31` FOREIGN KEY `fkIdx_31` (`productID_1`) REFERENCES `products` (`productID`)
);
-- ************************************** `roles`
CREATE TABLE `roles`
(
`roleID` INTEGER NOT NULL AUTO_INCREMENT ,
`roleName` VARCHAR(20) NOT NULL ,
`userID` INTEGER NOT NULL ,
PRIMARY KEY (`roleID`),
KEY `fkIdx_96` (`userID`),
CONSTRAINT `FK_96` FOREIGN KEY `fkIdx_96` (`userID`) REFERENCES `users` (`userID`)
);
-- ************************************** `orders`
CREATE TABLE `orders`
(
`orderID` INTEGER NOT NULL AUTO_INCREMENT ,
`orderNum` INTEGER NOT NULL ,
`productID` INTEGER NOT NULL ,
`quantity` INTEGER NOT NULL ,
`userID` INTEGER NOT NULL ,
PRIMARY KEY (`orderID`),
KEY `fkIdx_70` (`productID`),
CONSTRAINT `FK_70` FOREIGN KEY `fkIdx_70` (`productID`) REFERENCES `products` (`productID`),
KEY `fkIdx_100` (`userID`),
CONSTRAINT `FK_100` FOREIGN KEY `fkIdx_100` (`userID`) REFERENCES `users` (`userID`)
);
-- ************************************** `inventory`
CREATE TABLE `inventory`
(
`id` INTEGER NOT NULL AUTO_INCREMENT ,
`expiry` DATE ,
`productID` INTEGER NOT NULL ,
`warehouseID` INTEGER NOT NULL ,
PRIMARY KEY (`id`),
KEY `fkIdx_40` (`productID`),
CONSTRAINT `FK_40` FOREIGN KEY `fkIdx_40` (`productID`) REFERENCES `products` (`productID`),
KEY `fkIdx_62` (`warehouseID`),
CONSTRAINT `FK_62` FOREIGN KEY `fkIdx_62` (`warehouseID`) REFERENCES `warehouses` (`warehouseID`)
);
Given the following table definition:
CREATE TABLE ControlledSubstances.NationalDrugCode
(
NationalDrugCodeID INT NOT NULL
,NationalDrugCode VARCHAR(20) NOT NULL
,Product VARCHAR(100)
,Ingredient VARCHAR(500)
,ClassID VARCHAR(50)
,Class VARCHAR(50)
,DrugEnforcementAgencyClassID VARCHAR(50)
,DrugEnforcementAgencyClass VARCHAR(50)
,GenericDrug VARCHAR(50)
,Form VARCHAR(50)
,Drug VARCHAR(50)
,StrengthPerUnit NUMERIC(6,2)
,UnitOfMeasure VARCHAR(50)
,ConversionFactor NUMERIC(4,2)
,LongOrShortActing VARCHAR(50)
,IsPreventionForStates BIT NOT NULL
)
;
ALTER TABLE ControlledSubstances.NationalDrugCode
ADD CONSTRAINT PK_ControlledSubstances_NationalDrugCode PRIMARY KEY (NationalDrugCodeID)
,CONSTRAINT DF_ControlledSubstances_NationalDrugCode_IsPreventionForStates DEFAULT 0 FOR IsPreventionForStates
;
CREATE UNIQUE INDEX UQ_ControlledSubstances_NationalDrugCode_NationalDrugCode ON ControlledSubstances.NationalDrugCode (NationalDrugCode);
Why would I be receiving an error on insert for the column I defined as NOT NULL and created a default constraint of 0? I know I can handle the logic in the insert statement to not pass in NULL values, but I use this logic in multiple tables and have never gotten an error before. The error I receive is:
Cannot insert the value NULL into column 'IsPreventionForStates', table 'Staging.ControlledSubstances.NationalDrugCode'; column does not allow nulls. INSERT fails.
This will happen if you explicitly provide NULL as its value. The default constraint only kicks in when you don't supply a value at all, or when you use the DEFAULT keyword:
For example, if NationalDrugCodeID and IsPreventionForStates were your only two columns in the table (for illustration), this will fail:
INSERT INTO NationalDrugCode(NationalDrugCodeID, IsPreventionForStates) VALUES (5, NULL);
But either of these would work:
INSERT INTO NationalDrugCode(NationalDrugCodeID) VALUES (5);
INSERT INTO NationalDrugCode(NationalDrugCodeID, IsPreventionForStates) VALUES (5, DEFAULT);
In the edge case where you need ALL columns to have default values inserted, you can use:
INSERT INTO NationalDrugCode DEFAULT VALUES;
Keeping on Getting error code.
Here's my database:
CREATE TABLE IF NOT EXISTS LOCATION_tbl ( locationid VARCHAR(20) NOT NULL,
locationcity VARCHAR(100) NOT NULL,
locationregion VARCHAR(100) NOT NULL,
locationcountry VARCHAR(40) NOT NULL,
PRIMARY KEY (locationid) USE lab3b;
INSERT INTO LOCATION_tbl (locationid, locationcity, locationregion, locationcountry)
VALUES ('GRU',
'Sao Paulo',
'Sao Paulo',
'Brazil');
INSERT INTO LOCATION_tbl
VALUES ('CPT',
'Cape Town',
'Western Cape',
'South Africa');
INSERT INTO LOCATION_tbl
VALUES ('BOG',
'Bogota',
'Capital District' ,
'Colombia');
INSERT INTO LOCATION_tbl
VALUES ('HAN',
'Hanoi',
'Som Tay',
'Vietnam');
INSERT INTO LOCATION_tbl
VALUES ('MUC',
'Munich',
'Bavaria',
'Germany')
Help anyone??
It looks like you are missing a closing ')' from your create table statement
I have three tables: ModelingAgency.clients, ModelingAgency.models, ModelingAgency.Bookings. All three tables have a primary key column called id.
The table bookings has two columns that reference clients and models. In pgAdmin when I try to create a foreign key in bookings to either clients or models I get the following screens:
What am I overlooking here? I am new to PostgreSQL (This is my first test project with PostgreSQL -- I've always used MySQL and occasionally SQL Server) so it's probably something obvious (I just don't see it).
EDIT: Here is the DDL, as requested:
-- Table: "ModelingAgency.bookings"
-- DROP TABLE "ModelingAgency.bookings";
CREATE TABLE "ModelingAgency.bookings"
(
id integer NOT NULL DEFAULT nextval('"ModelingAgency.Bookings_id_seq"'::regclass),
"clientId" integer NOT NULL,
"modelId" integer NOT NULL,
"time" timestamp with time zone NOT NULL DEFAULT now(),
"location" character varying(100) NOT NULL DEFAULT 'No Location Selected'::character varying,
CONSTRAINT "bookingId" PRIMARY KEY (id)
)
WITH (
OIDS=FALSE
);
ALTER TABLE "ModelingAgency.bookings" OWNER TO "MyBatisTutorial";
-- Table: "ModelingAgency.clients"
-- DROP TABLE "ModelingAgency.clients";
CREATE TABLE "ModelingAgency.clients"
(
id integer NOT NULL DEFAULT nextval('"ModelAgency.clients_id_seq"'::regclass),
"name" character varying(45) NOT NULL,
CONSTRAINT "clientId" PRIMARY KEY (id)
)
WITH (
OIDS=FALSE
);
ALTER TABLE "ModelingAgency.clients" OWNER TO "MyBatisTutorial";
-- Table: "ModelingAgency.models"
-- DROP TABLE "ModelingAgency.models";
CREATE TABLE "ModelingAgency.models"
(
id serial NOT NULL,
"name" character varying(45) NOT NULL,
CONSTRAINT "modelId" PRIMARY KEY (id)
)
WITH (
OIDS=FALSE
);
ALTER TABLE "ModelingAgency.models" OWNER TO "MyBatisTutorial";
Looking into your posted DDL code I see that your table's names are written in wrong way (that causes your issue with pgAdmin):
"ModelingAgency.bookings"
It should be in format "schema"."tableName":
"ModelingAgency"."bookings"
After that Object browser looks like this (probably you need to create schema first using easily pgAdmin or with CREATE SCHEMA SQL statement):
Here is working DDL code (I omitted some things like OIDS and OWNER TO, but that doesn't matter to your case, BTW OIDS are false on default):
DROP TABLE IF EXISTS "ModelingAgency"."bookings";
CREATE TABLE "ModelingAgency"."bookings"
(
id serial,
"clientId" integer NOT NULL,
"modelId" integer NOT NULL,
"time" timestamp with time zone NOT NULL DEFAULT now(),
"location" character varying(100) NOT NULL
DEFAULT 'No Location Selected'::character varying,
CONSTRAINT "bookingId" PRIMARY KEY (id)
);
DROP TABLE IF EXISTS "ModelingAgency"."clients";
CREATE TABLE "ModelingAgency"."clients"
(
id serial,
"name" character varying(45) NOT NULL,
CONSTRAINT "clientId" PRIMARY KEY (id)
);
DROP TABLE IF EXISTS "ModelingAgency"."models";
CREATE TABLE "ModelingAgency"."models"
(
id serial NOT NULL,
"name" character varying(45) NOT NULL,
CONSTRAINT "modelId" PRIMARY KEY (id)
)