![]() ![]() ![]() You can use this information to understand the structure of a table and its columns, just like you would with MySQL’s DESCRIBE command. pk: Whether the column is part of the primary key. ![]() dflt_value: The default value of the column The schema table can always be referenced using the name sqliteschema, especially if qualifed by the schema name like main.sqliteschema or temp.sqliteschema. Virtual Tables This article describes the virtual table mechanism and API in SQLite and how it can be used to add new capabilities to the core SQLite library.notnull: Whether the column is allowed to contain NULL values.First, you will have to create a regular table because a temporary table will need a reference to one already created. It is pretty similar to creating a regular table. This command will return a result set with the following columns: Creating a temporary table in SQLite is much simpler than you think. Here’s an example of how to use PRAGMA table_info to describe the columns of a table named mytable: PRAGMA table_info(mytable) The table_info pragma can be used to retrieve information about the columns in a table, including the column names, data types, and constraints. The PRAGMA statement is a special command used to query or set various run-time parameters of the SQLite engine. Yes, SQLite has an equivalent to MySQL’s DESCRIBE command called PRAGMA table_info(). This will return a list of all tables in the database, which you can then pass to the PRAGMA table_info() command to get information about each table. See these commands with description in the following table. Note that you can also get information about all tables in an SQLite database by running the following command: SELECT name FROM sqlite_master WHERE type='table' SQLite Commands with history, features, advantages, installation, commands, syntax. The cid column is the column ID, name is the column name, type is the column data type, notnull is a boolean value indicating whether the column can be null, dflt_value is the default value for the column, and pk is a boolean value indicating whether the column is part of the primary key. Parameters: tablename required: Name of attribute table drivername: Name of database driver: Options: dbf, odbc, ogr, pg, sqlite: Default: sqlite. This will return a result set with columns cid, name, type, notnull, dflt_value, and pk. In SQLite, you can use the PRAGMA table_info() command to get information about the columns of a table.įor example, to get the column names, data types, and other information about the columns of a table named my_table, you can run the following command in an SQLite client: PRAGMA table_info(my_table) SQLite is an open-source, zero-configuration, self-contained, stand-alone, transaction relational database engine designed to be embedded into an application. Yes, there is an SQLite equivalent to MySQL’s DESCRIBE command. ![]()
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