postgresql

问题 I'm using Postgres 12 and have written this procedure: CREATE OR REPLACE PROCEDURE reduceStock(id INTEGER, soldQuantity INTEGER) LANGUAGE plpgsql AS $$ BEGIN UPDATE inventory SET ProductStockAmount = ProductStockAmount - soldQuantity WHERE ProductID = id; END; $$; It works perfectly if I open up psql on the command line and run call reduceStock(1,1); However, calling it from my Java program as follows: CallableStatement stmt = conn.prepareCall("{call reduceStock(?, ?)}"); stmt.setInt(1,

问题 I'm using Postgres 12 and have written this procedure: CREATE OR REPLACE PROCEDURE reduceStock(id INTEGER, soldQuantity INTEGER) LANGUAGE plpgsql AS $$ BEGIN UPDATE inventory SET ProductStockAmount = ProductStockAmount - soldQuantity WHERE ProductID = id; END; $$; It works perfectly if I open up psql on the command line and run call reduceStock(1,1); However, calling it from my Java program as follows: CallableStatement stmt = conn.prepareCall("{call reduceStock(?, ?)}"); stmt.setInt(1,

问题 Finally i move forward from postgresql 9.1 to postresql 9.3 that supports JSON data type. Then the same code function properly. However i think that what i want to do in the first place can be done... if someone know how i still want to know. Enviroment node v0.10.28 pg v3.3.0 postgresql 9.1 I got this insert query INSERT INTO sessions(sid, user_id, session_object) VALUES ('id1', 1, '{"id":"fX2HkXYLclB","data": testing"}') RETURNING session_id When testing it from pgAdmin (or command line) it

问题 Finally i move forward from postgresql 9.1 to postresql 9.3 that supports JSON data type. Then the same code function properly. However i think that what i want to do in the first place can be done... if someone know how i still want to know. Enviroment node v0.10.28 pg v3.3.0 postgresql 9.1 I got this insert query INSERT INTO sessions(sid, user_id, session_object) VALUES ('id1', 1, '{"id":"fX2HkXYLclB","data": testing"}') RETURNING session_id When testing it from pgAdmin (or command line) it

问题 We have SpringBoot 2 driven HA java application in which we use PostgreSQL underneath. For certain reasons like unexpected crashes or Exceptions, Liquibase ends up with a stale DATABASECHANGELOGLOCK which was never released. This results in subsequent deployments of the app failing with app waiting for the change lock and then exiting as follows: 2020-03-04T11:10:31.78+0200 SELECT LOCKED FROM public.databasechangeloglock WHERE ID=1 2020-03-04T11:10:31.78+0200 Waiting for changelog lock....

问题 We have SpringBoot 2 driven HA java application in which we use PostgreSQL underneath. For certain reasons like unexpected crashes or Exceptions, Liquibase ends up with a stale DATABASECHANGELOGLOCK which was never released. This results in subsequent deployments of the app failing with app waiting for the change lock and then exiting as follows: 2020-03-04T11:10:31.78+0200 SELECT LOCKED FROM public.databasechangeloglock WHERE ID=1 2020-03-04T11:10:31.78+0200 Waiting for changelog lock....

问题 I just started learning database a couple of days ago. I'm running into this problem where my value is being recognized as a column, and it's spitting out an error. This is my News table: id | bodyText | url | createdAt | updatedAt ----+----------+-----+-----------+----------- this is the command I ran in psql: INSERT INTO "News" ("bodyText") VALUES ("this is a test"); and this is the error I'm getting: ERROR: column "this is a test" does not exist LINE 1: INSERT INTO "News" ("bodyText")

问题 I just started learning database a couple of days ago. I'm running into this problem where my value is being recognized as a column, and it's spitting out an error. This is my News table: id | bodyText | url | createdAt | updatedAt ----+----------+-----+-----------+----------- this is the command I ran in psql: INSERT INTO "News" ("bodyText") VALUES ("this is a test"); and this is the error I'm getting: ERROR: column "this is a test" does not exist LINE 1: INSERT INTO "News" ("bodyText")

问题 I'm trying to create a DataSet for a Quicksight analysis. I'm using a custom query on a Postgresql Data Source. Problem comes whenever I use Postgresql functions inside my query. The same query does, in fact, work on IntelliJ DataGrip and PgAdmin, for example, but I get a pretty unexpected error that states as follows: QuickSight could not generate any output column after applying transformation. Check transform(s) and try again. SELECT users.name AS "User", accounts.id AS "Account ID",

问题 I am bit confused over default ordering of the rows returned by postgres. postgres=# select * from check_user; id | name ----+------ 1 | x 2 | y 3 | z 4 | a 5 | c1\ 6 | c2 7 | c3 (7 rows) postgres=# update check_user set name = 'c1' where name = 'c1\'; UPDATE 1 postgres=# select * from check_user; id | name ----+------ 1 | x 2 | y 3 | z 4 | a 6 | c2 7 | c3 5 | c1 (7 rows) Before any updation, it was returning rows ordered by id, but after updation, the order has changed. So my question is