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Oracle GoldenGate 21c Real-Time Replication On-Prem to OCI

Explore Oracle GoldenGate 21c for real-time data replication between on-premises and OCI. Master hybrid cloud data movement.

By Someshwar ThakurPublished: July 9, 202612 min read15 views✓ Fact Checked
Oracle GoldenGate 21c Real-Time Replication On-Prem to OCI
Oracle GoldenGate 21c Real-Time Replication On-Prem to OCI

Overview: Bridging On-Premises PeopleSoft with OCI Using Oracle GoldenGate 21c

In today’s dynamic enterprise landscape, the ability to ensure real-time data availability and consistency across diverse environments is paramount. For organizations running Oracle PeopleSoft, a mission-critical enterprise resource planning (ERP) suite, this challenge often involves extending on-premises deployments to the cloud, specifically Oracle Cloud Infrastructure (OCI). Whether it's for disaster recovery, real-time analytics, reporting, or a phased migration strategy, maintaining a synchronized state between on-premises PeopleSoft databases and their OCI counterparts is crucial.

Oracle GoldenGate 21c stands out as the premier solution for high-performance, real-time data replication. Its robust change data capture (CDC) capabilities ensure that every transaction, from inserts and updates to deletes and DDL operations, is reliably propagated with minimal latency. When paired with OCI GoldenGate, a fully managed, cloud-native service, the complexities of managing GoldenGate infrastructure are abstracted away, allowing enterprises to focus on data flow rather than infrastructure maintenance.

This article delves into the intricate process of establishing real-time data replication for Oracle PeopleSoft applications, moving data from an on-premises Oracle Database to an Oracle Database service within OCI, leveraging the power of Oracle GoldenGate 21c. We will explore the architecture, necessary configurations, and best practices to ensure a secure, efficient, and resilient data pipeline, catering specifically to the unique requirements and data structures commonly found in PeopleSoft environments.

Prerequisites for Seamless Replication

Before embarking on the GoldenGate configuration journey, several foundational elements must be in place. Meticulous preparation ensures a smoother implementation and minimizes potential roadblocks.

On-Premises Environment:

  • Oracle Database: An Oracle Database instance (12cR2, 18c, 19c, or 21c recommended) hosting the PeopleSoft application data.
  • ARCHIVELOG Mode: The source database must be running in ARCHIVELOG mode. This is fundamental for GoldenGate's log-based change data capture.
  • Supplemental Logging: Database-level and schema-level supplemental logging must be enabled for all tables intended for replication. This ensures that GoldenGate captures all necessary key and column information for accurate replication.
  • Oracle GoldenGate 21c: A fully installed and configured Oracle GoldenGate 21c instance on the on-premises source server.
  • Network Connectivity: Secure and reliable network connectivity between the on-premises data center and OCI. This typically involves Oracle Cloud Infrastructure FastConnect or an IPSec VPN Connect tunnel, ensuring low latency and high bandwidth.
  • Database User: A dedicated Oracle GoldenGate database user (e.g., GGADMIN_ONPREM) with appropriate privileges for CDC and transaction access.

Oracle Cloud Infrastructure (OCI) Environment:

  • OCI Tenancy: An active OCI tenancy with administrative privileges.
  • Virtual Cloud Network (VCN): A VCN with appropriately configured subnets, security lists, or Network Security Groups (NSGs) to allow traffic between the OCI GoldenGate deployment, the OCI Database, and the on-premises network.
  • OCI Database Service: An Oracle Database service provisioned in OCI (e.g., Database Cloud Service - DBCS, Exadata Cloud Service, or Autonomous Database - ADW/ATP). This will serve as the target for replication. Ensure the database version is compatible with GoldenGate 21c and the source database.
  • OCI GoldenGate Service: A provisioned OCI GoldenGate deployment in the target region/compartment.
  • OCI CLI: Oracle Cloud Infrastructure Command Line Interface configured and authenticated on a jump host or via OCI Cloud Shell, for managing OCI resources.
  • Database User: A dedicated Oracle GoldenGate database user (e.g., GGADMIN_OCI) with appropriate privileges on the target OCI Database for applying changes.
  • Initial Data Load: A strategy for the initial data load (e.g., RMAN backup/restore, Data Pump) to ensure the target database is in sync with the source before real-time replication begins.

Step-by-Step Implementation: On-Premises to OCI Replication

This section provides a detailed walkthrough of configuring GoldenGate 21c for real-time replication, from preparing the databases to setting up the GoldenGate processes on both ends.

Phase 1: On-Premises Database and GoldenGate Setup

1. Database Preparation (On-Premises Source)

Connect to your on-premises PeopleSoft database as a user with SYSDBA privileges and perform the following:


-- Enable ARCHIVELOG mode (if not already enabled)
-- Requires database bounce
SHUTDOWN IMMEDIATE;
STARTUP MOUNT;
ALTER DATABASE ARCHIVELOG;
ALTER DATABASE OPEN;

-- Enable database-level supplemental logging
ALTER DATABASE ADD SUPPLEMENTAL LOG DATA;

-- Create a dedicated GoldenGate user and grant privileges
CREATE USER GGADMIN_ONPREM IDENTIFIED BY "YourSecurePassword123" DEFAULT TABLESPACE USERS TEMPORARY TABLESPACE TEMP;
GRANT CONNECT, RESOURCE TO GGADMIN_ONPREM;
GRANT UNLIMITED TABLESPACE TO GGADMIN_ONPREM;
GRANT SELECT ANY DICTIONARY TO GGADMIN_ONPREM;
GRANT FLASHBACK ANY TABLE TO GGADMIN_ONPREM;
GRANT SELECT ON V_$DATABASE TO GGADMIN_ONPREM;
GRANT SELECT ON V_$ARCHIVED_LOG TO GGADMIN_ONPREM;
GRANT SELECT ON V_$LOGMNR_CONTENTS TO GGADMIN_ONPREM;
GRANT EXECUTE ON DBMS_FLASHBACK TO GGADMIN_ONPREM;
GRANT ALTER ANY TABLE TO GGADMIN_ONPREM;
GRANT CREATE ANY TABLE TO GGADMIN_ONPREM;
GRANT LOCK ANY TABLE TO GGADMIN_ONPREM;
GRANT ANALYZE ANY DICTIONARY TO GGADMIN_ONPREM;
GRANT ALTER SYSTEM TO GGADMIN_ONPREM;
GRANT CREATE SESSION TO GGADMIN_ONPREM;
GRANT SELECT ON ALL_VIEWS TO GGADMIN_ONPREM;
GRANT SELECT ON DBA_TABLES TO GGADMIN_ONPREM;
GRANT SELECT ON DBA_TAB_COLUMNS TO GGADMIN_ONPREM;
GRANT SELECT ON DBA_CONSTRAINTS TO GGADMIN_ONPREM;
GRANT SELECT ON DBA_CONS_COLUMNS TO GGADMIN_ONPREM;
GRANT SELECT ON DBA_INDEXES TO GGADMIN_ONPREM;
GRANT SELECT ON DBA_IND_COLUMNS TO GGADMIN_ONPREM;
GRANT SELECT ON DBA_OBJECTS TO GGADMIN_ONPREM;
GRANT SELECT ON DBA_USERS TO GGADMIN_ONPREM;
GRANT SELECT ON DBA_ROLE_PRIVS TO GGADMIN_ONPREM;
GRANT SELECT ON DBA_TAB_PRIVS TO GGADMIN_ONPREM;
GRANT SELECT ON DBA_SOURCE TO GGADMIN_ONPREM;
GRANT SELECT ON DBA_SYNONYMS TO GGADMIN_ONPREM;
GRANT SELECT ON DBA_SEQUENCES TO GGADMIN_ONPREM;
GRANT SELECT ON DBA_LOBS TO GGADMIN_ONPREM;
GRANT SELECT ON DBA_TYPES TO GGADMIN_ONPREM;
GRANT SELECT ON DBA_TRIGGERS TO GGADMIN_ONPREM;
GRANT SELECT ON DBA_VIEWS TO GGADMIN_ONPREM;
GRANT SELECT ON SYS.ENC$ TO GGADMIN_ONPREM;
GRANT SELECT ON SYS.USER$ TO GGADMIN_ONPREM;
GRANT SELECT ON SYS.OBJ$ TO GGADMIN_ONPREM;
GRANT SELECT ON SYS.COL$ TO GGADMIN_ONPREM;
GRANT SELECT ON SYS.IND$ TO GGADMIN_ONPREM;
GRANT SELECT ON SYS.LOB$ TO GGADMIN_ONPREM;
GRANT SELECT ON SYS.TAB$ TO GGADMIN_ONPREM;
GRANT SELECT ON SYS.UNDO_SEGMENT$ TO GGADMIN_ONPREM;
GRANT SELECT ON SYS.C_OBJ# TO GGADMIN_ONPREM;
GRANT SELECT ON SYS.C_FILE#_BLOCK# TO GGADMIN_ONPREM;
GRANT SELECT ON SYS.USER_AST TO GGADMIN_ONPREM;
-- For integrated extract:
GRANT LOGMINING TO GGADMIN_ONPREM;

2. Initial Data Load Strategy (RMAN Example)

For large PeopleSoft databases, an RMAN backup and restore is often the most efficient initial load method. This creates a consistent baseline on OCI before real-time replication.

  1. On-Premises: Perform a full RMAN backup of the PeopleSoft database. 
    
RMAN> BACKUP DATABASE PLUS ARCHIVELOG;
RMAN> BACKUP CURRENT CONTROLFILE FOR STANDBY;
  2. Transfer to OCI Object Storage: Securely transfer the RMAN backup pieces and control file to an OCI Object Storage bucket. This can be done using rsync over VPN/FastConnect or OCI CLI. 
    
# Example using OCI CLI from on-premises to upload backup pieces
oci os object put -bn pplsoft-backups --file /path/to/backup/full_backup_01.bkp --name full_backup_01.bkp --no-multipart
oci os object put -bn pplsoft-backups --file /path/to/backup/arch_01.bkp --name arch_01.bkp --no-multipart
oci os object put -bn pplsoft-backups --file /path/to/backup/control01.ctl --name control01.ctl --no-multipart
  3. OCI Database Service: Restore the database to your OCI Database Cloud Service (DBCS) instance. This typically involves configuring RMAN to use the OCI Object Storage bucket as a media management device (MMD) using the OCI Database Backup Module (libopc.so). 
    
# Example configuration for OCI DB Backup Module
# Ensure $ORACLE_HOME/dbs/opc_install.jar is run and config file is present
# Example RMAN commands on OCI DBCS instance:
RMAN> CONFIGURE CHANNEL DEVICE TYPE 'SBT_TAPE' PARMS 'SBT_LIBRARY=/opt/oracle/dcs/commonstore/backup/lib/libopc.so, ENV=(OPC_PFILE=/opt/oracle/dcs/commonstore/backup/conf/opc_PPLSOCT.ora)';
RMAN> RESTORE CONTROLFILE FROM 'PPLSOCT_control01.ctl'; -- from object storage
RMAN> ALTER DATABASE MOUNT;
RMAN> RESTORE DATABASE;
RMAN> RECOVER DATABASE;
RMAN> ALTER DATABASE OPEN RESETLOGS;

3. On-Premises GoldenGate Configuration

Log in to the GoldenGate command-line interface (GGSCI) on your on-premises server.


# On-premises server
cd /u01/app/oracle/ogg21c
./ggsci

a. Create Credential Store:


GGSCI> DBLOGIN USERID GGADMIN_ONPREM, PASSWORD YourSecurePassword123
GGSCI> ADD CREDENTIALSTORE
GGSCI> ALTER CREDENTIALSTORE ADD USER GGADMIN_ONPREM@PPLSOFT PASSWORD YourSecurePassword123 ALIAS ogg_source_db

b. Enable Schema-Level Supplemental Logging for PeopleSoft Schemas:

This is critical for PeopleSoft, as it ensures all necessary columns are logged for accurate replication, especially for tables with no primary key or unique index.


GGSCI> DBLOGIN USERIDALIAS ogg_source_db
GGSCI> ADD SCHEMATRANDATA SYSADM ALLCOLS
-- Repeat for other PeopleSoft schemas like PS_APP, PS_TOOLS, etc., if they contain replicated data.
-- Example:
GGSCI> ADD SCHEMATRANDATA PS_APP ALLCOLS

c. Create and Register the Extract Process (ext_ppl):

This process captures changes from the source database redo logs.


GGSCI> ADD EXTRACT ext_ppl, INTEGRATED TRANLOG, BEGIN NOW
GGSCI> ADD RMTTRAIL /u01/app/oracle/ogg21c/dirdat/rt, EXTRACT ext_ppl

d. Configure Extract Parameter File (dirprm/ext_ppl.prm):


EXTRACT ext_ppl
SETENV (ORACLE_HOME="/u01/app/oracle/product/19.0.0/dbhome_1")
SETENV (TNS_ADMIN="/u01/app/oracle/product/19.0.0/dbhome_1/network/admin")
DBLOGIN USERIDALIAS ogg_source_db
TRANLOGOPTIONS DBLOGREADER
SOURCEDB PPLSOFT

-- Target OCI GoldenGate endpoint IP and port (e.g., 10.0.1.10:7809)
-- This assumes a network path to the OCI GoldenGate deployment's public endpoint or private endpoint IP.
RMTHOST 10.0.1.10, MGRPORT 7809, ENCRYPT AES256, REPORTCOUNT EVERY 10 MINUTES

RMTTRAIL /u01/app/oracle/ogg21c/dirdat/rt

-- PeopleSoft specific tables (adjust schema and table names as needed)
TABLE SYSADM.PS_LEDGER;
TABLE SYSADM.PS_EMPL_DATA;
TABLE SYSADM.PS_JOB;
TABLE SYSADM.PS_PERSONAL_DATA;
TABLE SYSADM.PS_GP_PAYSLP_DATA;
-- Add more critical PeopleSoft tables here.
-- Consider using wildcards if replicating entire schemas, but be cautious.
-- TABLE SYSADM.*;

e. Create and Register the Data Pump Process (dp_ppl):

The data pump forwards the trail files from the source to the target OCI GoldenGate deployment.


GGSCI> ADD EXTRACT dp_ppl, EXTTRAILSOURCE /u01/app/oracle/ogg21c/dirdat/rt
GGSCI> ADD RMTTRAIL /u01/app/oracle/ogg21c/dirdat/rc, EXTRACT dp_ppl

f. Configure Data Pump Parameter File (dirprm/dp_ppl.prm):


EXTRACT dp_ppl
SETENV (ORACLE_HOME="/u01/app/oracle/product/19.0.0/dbhome_1")
SETENV (TNS_ADMIN="/u01/app/oracle/product/19.0.0/dbhome_1/network/admin")
PASSTHRU

-- Target OCI GoldenGate endpoint IP and port
RMTHOST 10.0.1.10, MGRPORT 7809, ENCRYPT AES256, REPORTCOUNT EVERY 10 MINUTES

RMTTRAIL /u01/app/oracle/ogg21c/dirdat/rc

TABLE SYSADM.PS_LEDGER;
TABLE SYSADM.PS_EMPL_DATA;
TABLE SYSADM.PS_JOB;
TABLE SYSADM.PS_PERSONAL_DATA;
TABLE SYSADM.PS_GP_PAYSLP_DATA;

Phase 2: OCI Network and GoldenGate Service Setup

1. OCI Network Configuration

Ensure your VCN, subnets, and security rules are correctly configured to allow communication. For an OCI GoldenGate deployment with a private endpoint, traffic will flow over your FastConnect/VPN to the VCN, then to the private endpoint and the OCI Database.

Security List / Network Security Group Rules (Example for a private subnet):

  • Ingress for OCI GoldenGate Private Endpoint: Allow TCP traffic on port 7809 from your on-premises public IP range or VCN CIDR block (if using a private connection).
  • Egress from OCI GoldenGate Private Endpoint: Allow TCP traffic on the OCI Database listener port (e.g., 1521) to the OCI Database private IP.
  • Ingress for OCI Database: Allow TCP traffic on port 1521 from the OCI GoldenGate private endpoint IP address.

Example OCI CLI for adding an Ingress Security List rule (assuming a VCN `ocid1.vcn.oc1.phx.aaaaaaaa...`, a Security List `ocid1.securitylist.oc1.phx.bbbbbb...`):


# Add ingress rule to allow traffic from on-premises to OCI GoldenGate MGR port
oci network security-list update \
    --security-list-id ocid1.securitylist.oc1.phx.bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb \
    --ingress-security-rules '[{"protocol": "6", "source": "192.168.1.0/24", "sourceType": "CIDR_BLOCK", "tcpOptions": {"destinationPortRange": {"max": 7809, "min": 7809}}}]' \
    --force

2. Create OCI GoldenGate Deployment

Provision your OCI GoldenGate deployment. You can do this via the OCI Console or OCI CLI.


# Example OCI CLI command to create an OCI GoldenGate deployment
oci golden-gate deployment create \
    --compartment-id ocid1.compartment.oc1.phx.aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa \
    --display-name "PeopleSoft_OGG_Deployment" \
    --description "OCI GoldenGate deployment for PeopleSoft replication" \
    --license-model "BRING_YOUR_OWN_LICENSE" \
    --deployment-type "OGG_ORACLE" \
    --deployment-url-type "PRIVATE_ENDPOINT" \
    --subnet-id ocid1.subnet.oc1.phx.cccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccc \
    --nsg-ids '["ocid1.networksecuritygroup.oc1.phx.dddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddd"]' \
    --cpu-core-count 2 \
    --is-auto-scaling-enabled false \
    --admin-username oggadmin \
    --admin-password "YourOGGAdminPassword123!" \
    --storage-size-in-gb 100 \
    --wait-for-state ACTIVE

Once active, obtain the Private Endpoint IP address for your OCI GoldenGate deployment (e.g., 10.0.1.10). This will be the `RMTHOST` for your on-premises data pump.

3. OCI Target Database Preparation

Connect to your OCI Database (e.g., DBCS instance) as a user with SYSDBA privileges.


-- Create a dedicated GoldenGate user and grant privileges
CREATE USER GGADMIN_OCI IDENTIFIED BY "YourSecurePassword456" DEFAULT TABLESPACE USERS TEMPORARY TABLESPACE TEMP;
GRANT CONNECT, RESOURCE TO GGADMIN_OCI;
GRANT UNLIMITED TABLESPACE TO GGADMIN_OCI;
GRANT ALTER ANY TABLE TO GGADMIN_OCI;
GRANT CREATE ANY TABLE TO GGADMIN_OCI;
GRANT LOCK ANY TABLE TO GGADMIN_OCI;
GRANT SELECT ON ALL_VIEWS TO GGADMIN_OCI;
GRANT SELECT ON DBA_TABLES TO GGADMIN_OCI;
GRANT SELECT ON DBA_TAB_COLUMNS TO GGADMIN_OCI;
GRANT SELECT ON DBA_CONSTRAINTS TO GGADMIN_OCI;
GRANT SELECT ON DBA_CONS_COLUMNS TO GGADMIN_OCI;
GRANT SELECT ON DBA_INDEXES TO GGADMIN_OCI;
GRANT SELECT ON DBA_IND_COLUMNS TO GGADMIN_OCI;
GRANT SELECT ON DBA_OBJECTS TO GGADMIN_OCI;
GRANT SELECT ON DBA_USERS TO GGADMIN_OCI;
GRANT SELECT ON DBA_ROLE_PRIVS TO GGADMIN_OCI;
GRANT SELECT ON DBA_TAB_PRIVS TO GGADMIN_OCI;
GRANT SELECT ON DBA_SOURCE TO GGADMIN_OCI;
GRANT SELECT ON DBA_SYNONYMS TO GGADMIN_OCI;
GRANT SELECT ON DBA_SEQUENCES TO GGADMIN_OCI;
GRANT SELECT ON DBA_LOBS TO GGADMIN_OCI;
GRANT SELECT ON DBA_TYPES TO GGADMIN_OCI;
GRANT SELECT ON DBA_TRIGGERS TO GGADMIN_OCI;
GRANT SELECT ON DBA_VIEWS TO GGADMIN_OCI;
GRANT SELECT ON SYS.ENC$ TO GGADMIN_OCI;
GRANT SELECT ON SYS.USER$ TO GGADMIN_OCI;
GRANT SELECT ON SYS.OBJ$ TO GGADMIN_OCI;
GRANT SELECT ON SYS.COL$ TO GGADMIN_OCI;
GRANT SELECT ON SYS.IND$ TO GGADMIN_OCI;
GRANT SELECT ON SYS.LOB$ TO GGADMIN_OCI;
GRANT SELECT ON SYS.TAB$ TO GGADMIN_OCI;
GRANT SELECT ON SYS.UNDO_SEGMENT$ TO GGADMIN_OCI;
GRANT SELECT ON SYS.C_OBJ# TO GGADMIN_OCI;
GRANT SELECT ON SYS.C_FILE#_BLOCK# TO GGADMIN_OCI;
GRANT SELECT ON SYS.USER_AST TO GGADMIN_OCI;
-- For integrated replicat:
GRANT GG_ADMIN_ROLE TO GGADMIN_OCI; -- If using Oracle 12.2 or higher

Phase 3: OCI GoldenGate Configuration (Target)

Access the OCI GoldenGate Deployment Console by navigating to the deployment in the OCI Console and clicking "Launch Console."

1. Create OCI GoldenGate Database Connection

In the OCI GoldenGate Console, go to "Connections" and create a new connection to your OCI Target Database. Provide the database connection string (e.g., (DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=mydb.subnet.vcn.oraclevcn.com)(PORT=1521))(CONNECT_DATA=(SERVER=DEDICATED)(SERVICE_NAME=PPLSOCT_pdb1)))), username (GGADMIN_OCI), and password.

2. Create Credential Store and Alias

Within the OCI GoldenGate console, launch GGSCI from the "Administration Service" or use the command line if SSH access is configured.


# In OCI GoldenGate Console, go to Deployment -> Launch Console -> Administration Service -> Connect to GGSCI
GGSCI> DBLOGIN USERID GGADMIN_OCI, PASSWORD YourSecurePassword456, SOURCEDB PPLSOCT_pdb1
GGSCI> ADD CREDENTIALSTORE
GGSCI> ALTER CREDENTIALSTORE ADD USER GGADMIN_OCI@PPLSOCT_pdb1 PASSWORD YourSecurePassword456 ALIAS ogg_target_db

3. Create Replicat Process (rep_ppl)

This process applies the changes captured from the trail files to the target database.


GGSCI> ADD REPLICAT rep_ppl, INTEGRATED, EXTTRAIL /u01/app/oracle/ogg21c/dirdat/rc
GGSCI> ADD CHECKPOINTTABLE GGADMIN_OCI.PPL_CHECKPOINT

4. Configure Replicat Parameter File (dirprm/rep_ppl.prm)


REPLICAT rep_ppl
SETENV (ORACLE_HOME="/u01/app/oracle/product/19.0.0/dbhome_1")
SETENV (TNS_ADMIN="/u01/app/oracle/product/19.0.0/dbhome_1/network/admin")
DBLOGIN USERIDALIAS ogg_target_db

-- Handling DDL replication (optional, but recommended for PeopleSoft)
DDL INCLUDE ALL
DDLOPTIONS ADDSUPPLOGDATA

-- MAP statements for PeopleSoft tables
-- If schemas are different, use MAP SOURCE_SCHEMA.SOURCE_TABLE, TARGET TARGET_SCHEMA.TARGET_TABLE;
MAP SYSADM.PS_LEDGER, TARGET SYSADM.PS_LEDGER;
MAP SYSADM.PS_EMPL_DATA, TARGET SYSADM.PS_EMPL_DATA;
MAP SYSADM.PS_JOB, TARGET SYSADM.PS_JOB;
MAP SYSADM.PS_PERSONAL_DATA, TARGET SYSADM.PS_PERSONAL_DATA;
MAP SYSADM.PS_GP_PAYSLP_DATA, TARGET SYSADM.PS_GP_PAYSLP_DATA;
-- Add more tables as needed.

Phase 4: Start and Monitor Processes

1. Start GoldenGate Processes (On-Premises)


# On-premises server
GGSCI> START EXTRACT ext_ppl
GGSCI> START EXT

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Written By

Someshwar Thakur

PS Admin, Cloud Architect, DBA

Sources & References

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• Industry reports from Gartner, IDC, and Statista

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Last verified: July 9, 2026

Fact-checked by TechNews Venture editorial team

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