August 2010
Intermediate to advanced
526 pages
23h 39m
English
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Name
sqlite3_data_count() — Get the number of valid result columns in a statement
Definition
int sqlite3_data_count( sqlite3_stmt* stmt );
-
stmt A prepared statement.
- Returns
The number of columns available in a prepared statement.
Description
This function returns the number of columns available in a row
result. Column indexes start at zero (0), so if this function returns 5, value column
indexes are 0 to 4. The value zero (0) will be returned if there is no current
result row.
This function is almost identical to sqlite3_column_count(). The main difference is
that this function will return zero (0) if no valid result row is currently
available (for example, before sqlite3_step() is called), while sqlite3_column_count() will
always return the number of expected columns, even if no row is
currently available.
See Also
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I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
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I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.