Re: Cursor need it?
От
KÖPFERL Robert
Тема
Re: Cursor need it?
Дата
Msg-id
ED4E30DD9C43D5118DFB00508BBBA76EB16752@neptun.sonorys.at
Список
Дерево обсуждения
Re: Cursor need it? KÖPFERL Robert <robert.koepferl@sonorys.at>
| |I am a new postgres user | |I want to get a list of tables from pg_tables where tables are like |‘%wo%’ (for example).. and then query that list …. | |Select count(*) from tableVARIABLENAMEFROMFIRSTQUERY | |In SQL SERVER I can do that using cursor but in postgresql I don’t |understand how to use cursors Sorry, but this is a SQL-Server. You are looking for cross table joins. Join the pg_class table (where you get the table name) with another table which you want to query additional data. Then select your columns off both tables. select p.name, m.foo from pg_class p JOIN myinfo m ON p.name=m.info this is equal to select p.name, m.foo from pg_class p, myinfo m where p.name=m.info | |Here is what I am trying to do |for each table on the list |Select tablename, count(*) tables from ( list of tables) | |tablename tables |table1 25 |table2 35 | |Any Idea would be appreciated | |Thanks | |Lucas | | |---------------------------(end of |broadcast)--------------------------- |TIP 2: you can get off all lists at once with the unregister command | (send "unregister YourEmailAddressHere" to |majordomo@postgresql.org) |
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