sql: get a list of field names from a data table
Hi,
I'm new to sql and wanted help in getting a list of field names (column headers) in a data table.
I really don't have any idea how to do it, though I've searched google and read the documentation.
I am using sqlite and qt, if that matters.
Cheers
Mick
[315 byte] By [
eutherian] at [2007-11-11 7:53:11]

# 1 Re: sql: get a list of field names from a data table
Well, almost as soon as I posted my message I worked out how to do it using the Qt sqlite binding:
QSqlQuery q("select * from mytable LIMIT 0, 0"); //don't actually select anything but get a reference to the record set
QSqlRecord rec = q.record();
QStringList fields;
for (int i=0; i<rec.count(); i++)
fields.append(rec.fieldName(i));
//now, fields contains a list of field names
But if there's a pure sql way of doing it I'd love to know!
Cheers
Mick
# 2 Re: sql: get a list of field names from a data table
Looking at your SQL code, your not using SQL Server - SQL Server uses TOP rather than limit. PL-SQL?
The following can be done in SQL Server quite easily - I'm not as familiar with other database products but maybe you can access table metadata using system tables/views the same way you can with SQL Server:
select COLUMN_NAME from INFORMATION_SCHEMA.COLUMNS where TABLE_NAME = 'tablename'