In MySQL, we can use the DESC <table>
command to discover the structure of a table.
What about SQLite? How could I do that?
In MySQL, we can use the DESC <table>
command to discover the structure of a table.
What about SQLite? How could I do that?
Something closer to the MySql% command%:
PRAGMA table_info([tabela]);
If you want something more detailed:
.schema [tabela]
You can also get everything by invoking only DESCRIBE [tabela]
without specifying a table.
.schema
Additionally, it is also interesting to know the equivalent of .schema
The command is SHOW TABLES;
or .tables
obs: [table] is an illustrative scope. You must enter the table name without the brackets. ex:
PRAGMA table_info(minha_tabela);
.schema minha_tabela
If you are the interpreter, just use .schema nome_da_tabela
. It will show the query that cranked it up for you. It does not have a specific mechanism.
You can also call a function that gives this information . This is done with PRAGMA schema.table_info('nome_da_tabela')
But in your application you will probably want to do different and query the structures table:
SELECT sql FROM sqlite_master WHERE type='nome_da_tabela';
In SQLite 3.16 you can do:
SELECT * FROM pragma_table_info('nome_da_tabela');
Remembering that SQLite has a dynamic typing database.