col SAMPLE_TIME format a25col program format a20col SQL_EXEC_START format a25col machine format a15set lines 140 pages 200alter session set nls_date_format=’DD-MON-RRRR:HH24:MI:SS’; select SAMPLE_TIME, SESSION_ID, SESSION_SERIAL#, USER_ID, sql_ID, Machine, program, SQL_EXEC_STARTfrom gv$active_session_historywhere session_id = &v_session_idand sample_time > sysdate – 1/24order by sample_time/
To connect Python to Oracle Database using an Oracle Wallet, you can use the cx_Oracle or oracledb library with Oracle Client libraries (like Oracle Instant Client). Oracle Wallet simplifies secure connections by storing credentials and SSL certificates. ✅ Steps to Connect Python to Oracle using Oracle Wallet Step 1: Install Required Python Package Step 2:…
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Handling JSON and XML Data in Oracle Oracle provides built-in support for JSON and XML data storage, querying, and manipulation. Below are methods to handle both data types efficiently. 1. Handling JSON Data in Oracle A. Storing JSON Data Example: Creating a Table with JSON Column B. Inserting JSON Data C. Querying JSON Data 1….
Rule of Thumb for Estimating Concurrent DB Connections on a 24-Core Machine (Single Thread Each) The number of concurrent database connections a 24-core machine can handle depends on various factors, including: Hypothetical Calculation Based on CPU A single-threaded, single-core system can typically handle 2-10 concurrent active queries (depending on execution time and parallelism). For a…
In an Oracle Exadata environment, cell node storage disks are presented to compute nodes as ASM disks, and this mapping occurs through the Oracle ASM (Automatic Storage Management) and Exadata Storage Server software (CellCLI). Here’s a detailed explanation of how the cell node storage disks are mapped to the compute nodes: 1. Cell Node Storage:…
Directory Structure: root-folder/ config-folder/ json-file.config class-folder/ classfile.py tests/ pytest-file1.py json-file.config: { “setting1”: “value1”, “setting2”: “value2” } Now, Here I need to access json-file.config in my class file. I do not want to use dbutil, how can i access it and read it from json-file.config in my class file?? classfile.py import os import json class myclass:…
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I have following directory structure. root-folder – config-folder json-file.config – class-folder classfile.py – tests pytest-file1.py Now, I need to use a class named myclass from classfile.py in my test/pytestfile1.py. How can I import that class in my pytest file?? To import the myclass from classfile.py into your pytest-file1.py, you can use a relative import assuming…
In this guide, I’ll walk you through moving SQL profiles using a staging table. SQL profiles help databases optimize query execution plans. Step#1 Create the Staging Table First, create a staging table to hold SQL profiles that need to be transferred. SQL> exec DBMS_SQLTUNE.CREATE_STGTAB_SQLPROF(table_name => ‘SQL_STG_TAB’, schema_name => ‘SYS’); This will create a table SQL_STG_TAB…
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When dealing with Oracle 19c Real Application Clusters (RAC), the process of capturing a workload from a source Oracle 19c RAC database and replaying it on a target Oracle 19c RAC database using HammerDB involves some additional considerations. Below are the revised steps: Capture and Replay Workload from Source to Target Oracle 19c RAC Download…
from pyspark.sql.functions import col, lit# File location and typefile_location = “/FileStore/tables/sales_data_part1.csv”file_type = “csv”# CSV optionsinfer_schema = “false”first_row_is_header = “true”delimiter = “,”# The applied options are for CSV files. For other file types, these will # be ignored.df = spark.read.format(file_type) .option(“inferSchema”, infer_schema) .option(“header”, first_row_is_header) .option(“sep”, delimiter) .load(file_location)display(df)# Adding new column with and with default values. #…
