This is myposgres.sql file in my project directory:
CREATE TABLE client (
cli_id serial PRIMARY KEY,
cli_name text NOT NULL,
cli_birthyear smallint NOT NULL
);
CREATE TABLE product (
pro_id serial PRIMARY KEY,
pro_ean text UNIQUE NOT NULL,
pro_name text NOT NULL,
pro_description text NOT NULL,
pro_weight_g smallint NOT NULL
);
CREATE TABLE command (
com_id serial PRIMARY KEY,
com_number text UNIQUE NOT NULL,
cli_id integer NOT NULL REFERENCES client
);
CREATE TABLE command_line (
lin_id serial PRIMARY KEY,
com_id integer NOT NULL REFERENCES command,
pro_id integer NOT NULL REFERENCES product,
lin_quantity smallint NOT NULL
);
Now, how do I use this file to connect the postges database to graphql? And how query postgres database using graphql?
Related
I'm executing below query in postgres 12.11
Table structure as below:
CREATE TABLE pdb_interface.schedule (
id uuid NOT NULL DEFAULT uuid_generate_v4(),
report varchar NOT NULL,
users varchar NOT NULL,
"hour" int4 NULL,
min int4 NULL,
daily_frequency int4 NULL,
daily_workday bool NULL,
weekly_frequency int4 NULL,
weekly_days varchar NULL,
monthly_sected_days varchar NULL,
last_updated timestamp NULL,
deleted bool NULL,
CONSTRAINT schedule_pkey PRIMARY KEY (id),
CONSTRAINT schedule_report_fkey FOREIGN KEY (report) REFERENCES pdb_interface.report("Id"),
CONSTRAINT schedule_users_fkey FOREIGN KEY (users) REFERENCES pdb_interface.users("Id"));
update schedule
set daily_frequency = 12
where id = 'f2f0ba60-f8b1-49ae-a82c-aaddb1a1834b'
The column "id" is of uuid and value is present in the table . However while executing above query, it is giving below error
SQL Error [XX000]: ERROR: no conversion function from character varying to uuid
Is there any work around for the same
I want to understand inheritance in postgresql, simple whitch columns in whitch tables.
CREATE TABLE users (
id serial PRIMARY KEY,
username VARCHAR UNIQUE NOT NULL,
email VARCHAR NOT NULL,
password_salt VARCHAR,
password_hash VARCHAR,
avatar serial
)
CREATE TABLE groups (
id serial PRIMARY KEY NOT NULL,
name VARCHAR,
email VARCHAR,
avatar serial,
)
CREATE TABLE accounts (
id serial PRIMARY KEY NOT NULL,
name VARCHAR,
avatar serial,
rating json NOT NULL,
);
CREATE TABLE users_to_accounts (
id serial PRIMARY KEY NOT NULL,
start_time DATETIME NOT NULL,
end_time DATETIME,
)
CREATE TABLE account_subscryptions (
user_id serial NOT NULL,
account_id serial NOT NULL,
) INHERITS users_to_accounts
CREATE TABLE account_memberships (
user_id serial NOT NULL,
account_id serial NOT NULL,
) INHERITS users_to_accounts
CREATE TABLE users_to_groups (
id serial PRIMARY KEY NOT NULL,
start_time DATETIME NOT NULL,
end_time DATETIME,
)
CREATE TABLE group_subscryptions (
user_id serial NOT NULL,
group_id serial NOT NULL,
) INHERITS users_to_groups
CREATE TABLE group_memberships (
user_id serial NOT NULL,
group_id serial NOT NULL,
) INHERITS users_to_groups
Now.
1. Is it good design to have foreign keys in child tables an all common data in "abstract" table?
2. Is there any traps in future changes of database with inherited relantion tables?
3. I am all wrong and there is a better way for this schema?
4. I want to create good database schema and generate graphql api in postgraphile, looking in google for half day, did not gave me any one good or best solution, so every link will by great.
It may be usefull for others, I think. Thanks
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`)
);
I have a products table
CREATE TABLE products (
id BIGSERIAL NOT NULL PRIMARY KEY,
title VARCHAR(100) NOT NULL,
description TEXT NULL,
price BIGINT NOT NULL
);
How to make so that when adding/editing PostgreSQL's data is automatically updated in Elasticsearch?
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)
)