my fetch_sf function (written in python 3.7) raise error cx_Oracle.DatabaseError: ORA-01008: not all variables bound but when i reuse this select statement with on case it works fine. i.e "SELECT C1, C2 FROM MYTABLE WHERE SCODE =" "(SELECT CASE WHEN TO_NUMBER(TO_CHAR (:1)) = 10 THEN DAY10 END FROM SFDETAIL WHERE ENO = :2 AND RYEAR=:3 ..
Category : cx-oracle
I’ve got class in models: class Region(models.Model): region_id=models.AutoField(primary_key=True,db_column="region_id") region_name=models.CharField(max_length=4000,blank=True,db_column="region_name") def __str__(self): return f"region_id={self.region_id}, region_name={self.region_name}" class Meta: db_table = "regions" Now I’m trying to query database from shell: python manage.py shell >>>s=Region.objects.all() >>>s When I’m connected to PostgreSQL everything is fine, but when I connect to Oracle (has same table) I’m getting "cx_Oracle.DatabaseError: ORA-00933: SQL command ..
Happy new year everyone! I’m currently struggling with ETL performance issues as I’m trying to write larger Pandas DataFrames (1-2 mio rows, 150 columns) into an Oracle data base. Even for just 1000 rows, Panda’s default to_sql() method runs well over 2 minutes (see code snippet below). My strong hypothesis is that these performance issues ..
Error message – "Could not build wheels for cx-Oracle which use PEP 517 and cannot be installed directly" My python version is 3.7 Source: Python..
dsn_tns = cx_Oracle.makedsn(‘myip’, ‘1521’, service_name=’myservicename’) connection = cx_Oracle.connect(user=’username’, password=’passwd’, dsn=dsn_tns) cursor = connection.cursor()* cursor.execute("INSERT INTO tablename VALUES (7.4)") #above works ok cursor.execute("INSERT INTO tablename VALUES (7:4)") #above sql raise cx_Oracle.DatabaseError: ORA-00917: missing comma above code connect oracle database table and create cursor to execute sql insert query. in insert query with values 7.4 if successfully ..
Is it possbie to change datetime data type returned from outputtypehandler using Python’s Cx_Oracle into string type (format yyyymmdd)? def OutputTypeHandler(cursor, name, defaultType, size, precision, scale): if defaultType in (cx_Oracle.DB_TYPE_TIMESTAMP, cx_Oracle.DB_TYPE_DATE): return cursor.var(datetime.date,cursor.arraysize) Source: Python-3x..
Is it possbie to change datetime data type returned from outputtypehandler using Python’s Cx_Oracle into string type (format yyyymmdd)? def OutputTypeHandler(cursor, name, defaultType, size, precision, scale): if defaultType in (cx_Oracle.DB_TYPE_TIMESTAMP, cx_Oracle.DB_TYPE_DATE): return cursor.var(datetime.date,cursor.arraysize) Source: Python-3x..
I am trying to update a date type column in an Oracle table but I am getting below error: sql2 = f"""update a_table SET COMPLETION_DATE = ‘{datetime.datetime.now()}’ WHERE ID=1""" data2 = cursor.execute(sql2) cx_Oracle.DatabaseError: ORA-00933: SQL command not properly ended for information : I am using cx_Oracle module. Source: Python..
#fetching data fro oracle database through using in and out parameters of procedure in python API import cx_Oracle cx_Oracle.init_oracle_client( lib_dir="C:instantclient-basic-windows.x64-19.9.0.0.0dbruinstantclient_19_9" ) try: conn= cx_Oracle.connect(‘c##scott/[email protected]:1521/orcl’) except Exception as err: print(‘error while connecting database>>>>>>>>>>> ‘, err) else: print(conn.version) print(‘sucessfully conneted Databasen’) try: cursor = conn.cursor() refcur = conn.cursor() print(cursor) print(‘Still,Searching Data from procedure n’) data=[10,20,30] for row ..
I have dataframe that contains 26 columns. the column types are float64, int64, datetime and object. I insert this df to database. however the float64 columns unexpectedly rounded as i see in the database. ”’ query = config[‘query’][‘insert_output_query’] #query = insert into schema.table values(:1,:2,:3,…,:25,:26) db_cursor.executemany(query, df.values.tolist()) db_connection.commit() ”’ i succesfully inserted the df to database ..
Recent Comments