How to get a list of column names on Sqlite3 database?

Question

I want to migrate my iPhone app to a new database version. Since I don\'t have some version saved, I need to check if certain column names exist.

This Stackoverflow

Answer 1

An alternative way to get a list of column names not mentioned here is to select from a pragma function:

SELECT name FROM PRAGMA_TABLE_INFO('your_table');
name      
tbl_name  
rootpage  
sql

You can check if a certain column exists by running:

SELECT 1 FROM PRAGMA_TABLE_INFO('your_table') WHERE name='sql';
1

This is what you use if you don't want to parse the result of select sql from sqlite_master or pragma table_info.

Reference:

https://www.sqlite.org/pragma.html#pragfunc