Go Premium for a chance to win a PS4. Enter to Win

x
?
Solved

PostgreSQL, array value must start with '{'

Posted on 2008-09-30
2
Medium Priority
?
1,149 Views
Last Modified: 2012-05-05
I need to execute the following PostgreSQL statement:
   select ('{'0'}'::varchar[]) as "content", .......
The column content is of type array. It does not exist in this particular table and needs to be initialized.

In the beginning I was getting  "array value must start with '{' ". Then I added curly braces and tried experimenting, but it still does not work. How can the query be fixed?

0
Comment
Question by:msosno
  • 2
2 Comments
 
LVL 22

Accepted Solution

by:
earth man2 earned 2000 total points
ID: 22618503
testdb=> select ARRAY['0'] as content;
 content
---------
 {0}
(1 row)
0
 
LVL 22

Expert Comment

by:earth man2
ID: 22618566
your curly brackets did not work because you terminate the array constant with the second apostrophe ie before the 0.  Use double quotes within the curly bracket

select x.content[2] from (select '{"0","21","32"}'::text[] as content) as x;
 content
---------
 21
(1 row)
0

Featured Post

What is SQL Server and how does it work?

The purpose of this paper is to provide you background on SQL Server. It’s your self-study guide for learning fundamentals. It includes both the history of SQL and its technical basics. Concepts and definitions will form the solid foundation of your future DBA expertise.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Best database to use for Maps is PostgreSQL. This is an open source database. Comes as a package with most Linux OS. For more info visit the following site: http://www.postgresql.org/ (http://www.postgresql.org/) This requires some add-o…
By, Vadim Tkachenko. In this article we’ll look at ClickHouse on its one year anniversary.
Steps to create a PostgreSQL RDS instance in the Amazon cloud. We will cover some of the default settings and show how to connect to the instance once it is up and running.
Screencast - Getting to Know the Pipeline
Suggested Courses

972 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question