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SQLite Class wrapper with auto-initialisation of empty DB
SQLiteDb class wrapping the operations from the
providing better support for the
with operator and automatic
initialisation of an empty DB upon first creation of the DB.
Additional wrappers are available as a utility, including
extraction of a list of tables, extraction of the list of columns
SELECT query, commit, rollback, start of a transaction,
check if the DB is in memory and if it's empty. Executions of SQL script
files is also made easy.
import sqlitecls with sqlitecls.SqliteDb('mydata.db', 'myinitscript.sql') as db: # Now the DB connection is established and the DB is guaranteed # to be initialised, as if it the DB file was not existing before, # the init script is run, preparing it for whatever your # application has to do. # # You can easily check which tables are available tables = db.tables_names() # and what columns they have columns = db.columns_names('some_table') # Otherwise use as any other DB API from now on cursor = db.execute('SELECT * FROM mytable') # Simplified extraction of the column names from the SELECT query columns = sqlitecls.cursor_column_names(cursor) # Use as any other DB API from now on for row in cursor: pass # Do something with each row db.connection, db.cursor # Available for custom operations # More wrappers! db.start_transaction() db.commit() db.rollback() db.vacuum() # Have existing SQL script files? Just run them as they are! db.execute_sql_file('myotherfile.sql') # Load WHOLE file in memory # Connection automatically closed now
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