postgresql-9.2

问题 I use this code to verify the DELETE sentence, but I am sure you know a better way: CREATE OR REPLACE FUNCTION my_schema.sp_delete_row_table(table_name character varying , id_column character varying , id_value integer) RETURNS integer AS $BODY$ DECLARE BEFORE_ROWS integer; AFTER_ROWS integer; BEGIN EXECUTE 'SELECT count(*) FROM ' || TABLE_NAME INTO BEFORE_ROWS; EXECUTE 'DELETE FROM ' || TABLE_NAME || ' WHERE ' || ID_COLUMN || ' = ' || (ID_VALUE)::varchar; EXECUTE 'SELECT count(*) FROM ' ||

问题 There are many similar questions on SO about this error, but none seem to answer my case. I have created the following stored procedure in PostgreSql: CREATE OR REPLACE FUNCTION "MySchema".UserAccountInsert( id bigint, lang varchar(3), nname varchar(40), email varchar(40), email_conf boolean, status smallint, status_update bigint, creation bigint, preferences json) RETURNS bigint AS $BODY$ DECLARE rowc INTEGER; ret_id bigint; BEGIN SELECT "ID" FROM "MySchema"."USER_ACCOUNT" WHERE "ID" = id OR

问题 I'm using a varchar[] column (varchar array) in Postgres 9.2 to store some tags. While retrieving rows by tags, I want the query to be case insensitive. However, I want to preserve the case to display in the UI (therefore I can't just store everything as lower case). So, my question is how do I create a case-insensitive index in Postgres over a varchar array? One possible approach would be to create a functional GIN index on the column. How does one do that? Any other approaches? 回答1:

问题 I'd like to generate a single sql query to mass-insert a series of rows that don't exist on a table. My current setup makes a new query for each record insertion similar to the solution detailed in WHERE NOT EXISTS in PostgreSQL gives syntax error, but I'd like to move this to a single query to optimize performance since my current setup could generate several hundred queries at a time. Right now I'm trying something like the example I've added below: INSERT INTO users (first_name, last_name,

问题 I have created two group roles in Postgres 9.2: one is called admins and the other is called readers . The idea is very simple: admins create tables and readers have read access to these tables. After granting privileges to both group roles everything worked as expected for exisintg objects. But now what about new objects? So after reading this post I altered the default privileges to grant SELECT privileges to readers for any new table that admins create: ALTER DEFAULT PRIVILEGES FOR ROLE

问题 I have pgAdmin version 1.16.1 So, for exporting table dumm I do: Right click on table, then in menu click on backup , then in Format choice Plain and save file as some_name.sql Then I remove table. Ok, now I need import table backup some_name.sql into database. How to do this? I can't find how to import table's .sql dump into database using pgAdmin. Can you help me please? 回答1: In pgAdmin, select the required target scheme in object tree Click on Plugins/PSQL Console Write \i /path/to

问题 Whenever I try to drop database I get: ERROR: database "pilot" is being accessed by other users DETAIL: There is 1 other session using the database. When I use: SELECT pg_terminate_backend(pg_stat_activity.pid) FROM pg_stat_activity WHERE pg_stat_activity.datname = 'TARGET_DB'; I terminated the connection from that DB, but if I try to drop database after that somehow someone automatically connects to that database and gives this error. What could be doing that? No one uses this database,

问题 I keep getting this error when i try to run my localhost using "$rails s": (Mac OSX 10.8.3) (ruby 2.0.0p195 (2013-05-14 revision 40734) [x86_64-darwin12.3.0]) (Rails 3.2.11) (psql (PostgreSQL) 9.2.2 ) **installed with homebrew I have been doing a lot of uninstalling postgresql and reinstalling so I have a hunch that there may be conflicting libraries somewhere...i just dont know where to start. I had Postgresql 9.1 and 9.2 in the same folder and just moved 9.1 into the trash. Here is the

问题 I keep getting this error when i try to run my localhost using "$rails s": (Mac OSX 10.8.3) (ruby 2.0.0p195 (2013-05-14 revision 40734) [x86_64-darwin12.3.0]) (Rails 3.2.11) (psql (PostgreSQL) 9.2.2 ) **installed with homebrew I have been doing a lot of uninstalling postgresql and reinstalling so I have a hunch that there may be conflicting libraries somewhere...i just dont know where to start. I had Postgresql 9.1 and 9.2 in the same folder and just moved 9.1 into the trash. Here is the

问题 I have a function which I have written to automate the execution of a group of functions for my project. I am taking a refcursor where I am storing my required data which I will be passing as an argument to each of my functions being called and based on the argument will get executed. I am giving my code here: CREATE OR REPLACE FUNCTION ccdb.fn_automation() RETURNS void AS $BODY$ DECLARE sec_col refcursor; cnt integer; sec_code ccdb.update_qtable%ROWTYPE; new_cnt numeric; BEGIN SELECT COUNT(*