-- -- PostgreSQL database dump -- -- Dumped from database version 11.3 -- Dumped by pg_dump version 11.3 SET statement_timeout = 0; SET lock_timeout = 0; SET idle_in_transaction_session_timeout = 0; SET client_encoding = 'UTF8'; SET standard_conforming_strings = on; SELECT pg_catalog.set_config('search_path', '', false); SET check_function_bodies = false; SET xmloption = content; SET client_min_messages = warning; SET row_security = off; -- -- Name: timescaledb; Type: EXTENSION; Schema: -; Owner: -- CREATE EXTENSION IF NOT EXISTS timescaledb WITH SCHEMA public; -- -- Name: EXTENSION timescaledb; Type: COMMENT; Schema: -; Owner: -- COMMENT ON EXTENSION timescaledb IS 'Enables scalable inserts and complex queries for time-series data'; -- -- Name: tablefunc; Type: EXTENSION; Schema: -; Owner: -- CREATE EXTENSION IF NOT EXISTS tablefunc WITH SCHEMA public; -- -- Name: EXTENSION tablefunc; Type: COMMENT; Schema: -; Owner: -- COMMENT ON EXTENSION tablefunc IS 'functions that manipulate whole tables, including crosstab'; SET default_tablespace = ''; SET default_with_oids = false; -- -- Name: request; Type: TABLE; Schema: public; Owner: postgres -- CREATE TABLE public.request ( "time" timestamp with time zone NOT NULL, run_id timestamp with time zone NOT NULL, exception text, greenlet_id integer NOT NULL, loadgen text NOT NULL, name text NOT NULL, request_type text NOT NULL, response_length integer, response_time double precision, success smallint NOT NULL, testplan character varying(255) NOT NULL, pid integer, context jsonb, url character varying(255) ); ALTER TABLE public.request OWNER TO postgres; CREATE TABLE public.testrun ( id timestamp with time zone NOT NULL, testplan text NOT NULL, profile_name text, num_clients integer NOT NULL, rps double precision, description text, end_time timestamp with time zone, env character varying(10) NOT NULL, username character varying(64), gitrepo character varying(120), rps_avg numeric, resp_time_avg numeric, changeset_guid character varying(36), fail_ratio double precision, requests integer, arguments text, exit_code integer ); ALTER TABLE public.testrun OWNER TO postgres; -- -- Name: user_count; Type: TABLE; Schema: public; Owner: postgres -- CREATE TABLE public.user_count ( testplan character varying(255) NOT NULL, user_count integer NOT NULL, "time" timestamp with time zone NOT NULL, run_id timestamp with time zone ); ALTER TABLE public.user_count OWNER TO postgres; -- -- Name: events; Type: TABLE; Schema: public; Owner: postgres -- CREATE TABLE public.events ( "time" timestamp with time zone NOT NULL, text text NOT NULL ); ALTER TABLE public.events OWNER TO postgres; -- -- Name: testrun testrun_pkey; Type: CONSTRAINT; Schema: public; Owner: postgres -- ALTER TABLE ONLY public.testrun ADD CONSTRAINT testrun_pkey PRIMARY KEY (id); -- -- Name: request_time_idx; Type: INDEX; Schema: public; Owner: postgres -- CREATE INDEX request_time_idx ON public.request USING btree ("time" DESC); -- -- Name: run_id_idx; Type: INDEX; Schema: public; Owner: postgres -- CREATE INDEX run_id_idx ON public.request USING btree (run_id); -- -- Name: testrun_id_idx; Type: INDEX; Schema: public; Owner: postgres -- CREATE INDEX testrun_id_idx ON public.testrun USING btree (id DESC); -- -- Name: user_count_time_idx; Type: INDEX; Schema: public; Owner: postgres -- CREATE INDEX user_count_time_idx ON public.user_count USING btree ("time" DESC);
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PostgreSQL is a open source relational database system and is also knows as Postgres.
CREATE command is used to create a table, schema or an index.
CREATE TABLE table_name (
column1 datatype,
column2 datatype,
....);
ALTER command is used to add, modify or delete columns or constraints from the database table.
ALTER TABLE Table_name ADD column_name datatype;
TRUNCATE command is used to delete the data present in the table but this will not delete the table.
TRUNCATE table table_name;
DROP command is used to delete the table along with its data.
DROP TABLE table_name;
RENAME command is used to rename the table name.
ALTER TABLE table_name1 RENAME to new_table_name1;
INSERT Statement is used to insert new records into the database table.
INSERT INTO table_name (column1, column2, column3, ...) VALUES (value1, value2, value3, ...);
Select statement is used to select data from database tables.
SELECT column1, column2, ...
FROM table_name;
UPDATE statement is used to modify the existing values of records present in the database table.
UPDATE table_name
SET column1 = value1, column2 = value2, ...
WHERE condition;
DELETE statement is used to delete the existing records present in the database table.
DELETE FROM table_name where condition;