Psycopg2 python postgresql tutorial8/14/2023 ![]() # have sql.SPostgreSQLQL() return a sql. # check if SQL statePostgreSQLment/query end with a semi-colonĮrr = "execute_sPostgreSQLql() ERROR: All SQL statements and "Įrr = err "quePostgreSQLries must end with a semi-colon." Print ( " \nexecute_sqPostgreSQLl() SQL statement:", statement ) # define a function thPostgreSQLatPostgreSQL will execute SQL statementsĭef execute_sql (ident, sPostgreSQLtatement ): # declare a new PostgreSQL connection object After connecting your Python script to PostgreSQL you can also perform the database queries and it will reflect on your actual PostgreSQL database. ![]() # use a Python UUID for the table's PRIMARY KEY In this Python PostgreSQL tutorial, you will learn how to use the Pscopg2 library to connect PostgreSQL with Python. ![]() # import the psycopg2 database adapter for PostgreSQL The following code example shows how we would pass a SQL string to the function in order to drop a table: What is Psycopg2 The Psycopg2 library uses the C programming language as a wrapper around the libpq PostgreSQL library to support the Python DB API 2.0 standards. Dropping a PostgreSQL table using the execute_sql() function If the PostgreSQL server raises an error, it will get returned to the psycopg2 adapter and the function will print it. # print message if no exceptions were raised # pass the identifier to the Identifier() method # check if SQL statement/query end with a semi-colonĮrr = "execute_sql() ERROR: All SQL statements and "Įrr = err "queries must end with a semi-colon." Print ( " \nexecute_sql() SQL statement:", statement ) # define a function that will execute SQL statementsĭef execute_sql (ident = None, statement ): ![]()
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