Andrea Gnemmi

Andrea Gnemmi is a Database and Data Warehouse professional with almost 20 years of experience, having started his career in Database Administration with SQL Server 2000.

Andrea Gnemmi is a Database and Data Warehouse professional with almost 20 years of experience, having started his career in Database Administration with SQL Server 2000.

His expertise ranges from SQL Server to Oracle and Postgres for database administration and from SAP BO to SSIS, SSRS and Power BI regarding BI and ETL.

He has worked both in SQL Server and Oracle mostly in multinational environments with very high transaction volumes and large datasets. Performance tuning, indexing techniques and in general Database administration are his hot topics. Ensuring a 24/7 uptime of the various databases in shop is his main responsibility, as well as the best possible performances of all queries run on the databases. He has started working with PostgreSQL two years ago loving many of the features of this RDBMS.

2021 Awards   

CategoryTitle
Other Database PlatformsCOALESCE(), ISNULL() , NULLIF() and alternatives in SQL Server, Oracle and PostgreSQL
Other Database PlatformsDelete SQL Statement in SQL Server, Oracle and PostgreSQL
Other Database PlatformsINSERT INTO for SQL Server, Oracle and PostgreSQL
Other Database PlatformsRelational Database Comparison between SQL Server, Oracle and PostgreSQL
Other Database PlatformsSQL Aggregate Functions Having, Order By, Distinct, Partition By and more in SQL Server, Oracle and PostgreSQL
Other Database PlatformsSQL Aggregate Functions in SQL Server, Oracle and PostgreSQL
Other Database PlatformsSQL Identity Column Gaps and Conversion in SQL Server, Oracle and PostgreSQL
Other Database PlatformsSQL Identity Columns in SQL Server, Oracle and PostgreSQL - Part 1
Other Database PlatformsSQL Server Linked Server, Oracle DBLink and PostgreSQL Foreign Data Wrapper
Other Database PlatformsSQL Server, Oracle and PostgreSQL Date Functions
Other Database PlatformsSQL Server, Oracle and PostgreSQL Job Schedulers
Other Database PlatformsSQL String functions in SQL Server, Oracle and PostgreSQL
Other Database PlatformsSQL Update Statement with Join in SQL Server vs Oracle vs PostgreSQL
Other Database PlatformsSQL Variables for Queries and Stored Procedures in SQL Server, Oracle and PostgreSQL
Other Database PlatformsSQL VIEW Comparison in SQL Server, Oracle and PostgreSQL
Other Database PlatformsSQL Window Functions in SQL Server, Oracle and PostgreSQL
Other Database PlatformsTime zones in SQL Server, Oracle and PostgreSQL
Other Database PlatformsVarchar Data Types in SQL Server, Oracle and PostgreSQL
No Records Found
No Records Found
CategoryGroupCategory (articles)
Analysis ServicesAnalysis Services Administration (31)
Analysis ServicesAnalysis Services Development (95)
Analysis ServicesAnalysis Services Dimensions (16)
Analysis ServicesAnalysis Services Measure Groups (7)
Analysis ServicesAnalysis Services Performance (14)
Analysis ServicesAnalysis Services Security (7)
Analysis ServicesAnalysis Services Tools (1)
Analysis ServicesAnalysis Services Tutorials (6)
Analysis ServicesCortana (5)
Analysis ServicesPerformance Point (4)
Business IntelligenceBig Data (25)
Business IntelligenceData Warehousing (4)
CloudAmazon AWS (47)
CloudApache Spark (3)
CloudAzure (188)
CloudAzure Backup and Restore (25)
CloudAzure Cosmos DB (11)
CloudAzure Data Factory (68)
CloudAzure Databricks (23)
CloudAzure Integration Services (14)
CloudAzure Synapse Analytics (36)
CloudCloud Strategy (12)
Data QualityData Quality Services (7)
Data QualityMaster Data Services (41)
Database AdministrationAvailability Groups (75)
Database AdministrationBackup (78)
Database AdministrationCentral Management Servers (9)
Database AdministrationClustering (73)
Database AdministrationComparison Data and Objects (14)
Database AdministrationCompression (22)
Database AdministrationContained Databases (4)
Database AdministrationContainers (12)
Database AdministrationDatabase Administration (190)
Database AdministrationDatabase Configurations (18)
Database AdministrationDatabase Console Commands DBCCs (25)
Database AdministrationDatabase Mail (18)
Database AdministrationDatabase Mirroring (33)
Database AdministrationDBA Best Practices (39)
Database AdministrationDedicated Administrator Connection (4)
Database AdministrationDeprecated Features (5)
Database AdministrationDevOps (34)
Database AdministrationDisaster Recovery (23)
Database AdministrationError Logs (11)
Database AdministrationExpress Edition (16)
Database AdministrationExtended Events (22)
Database AdministrationFILESTREAM (9)
Database AdministrationFragmentation and Index Maintenance (27)
Database AdministrationHardware (13)
Database AdministrationHigh Availability (3)
Database AdministrationIndexing (82)
Database AdministrationInstall and Uninstall (32)
Database AdministrationLicensing (4)
Database AdministrationLinked Servers (18)
Database AdministrationLocking and Blocking (38)
Database AdministrationLog Shipping (18)
Database AdministrationMaintenance (34)
Database AdministrationMonitoring (115)
Database AdministrationOther Database Platforms (73)
Database AdministrationPartitioning (15)
Database AdministrationPerformance Data Warehouse (4)
Database AdministrationPerformance Tuning (123)
Database AdministrationPolicy Based Management (29)
Database AdministrationPowerShell (129)
Database AdministrationProfiler and Trace (20)
Database AdministrationQuery Store (7)
Database AdministrationRecovery Models (4)
Database AdministrationReplication (75)
Database AdministrationResource Governor (5)
Database AdministrationRestore (41)
Database AdministrationSQL Server 2016 (100)
Database AdministrationSQL Server 2017 (44)
Database AdministrationSQL Server 2019 (19)
Database AdministrationSQL Server 2022 (10)
Database AdministrationSQL Server Configurations (75)
Database AdministrationSQL Server on Linux (76)
Database AdministrationStreamInsight (2)
Database AdministrationSystem Databases (31)
Database AdministrationUpgrades and Migrations (54)
Database AdministrationVirtualization (25)
Database AdministrationWindows Internal Database (1)
Database DevelopmentApplication Development (36)
Database DevelopmentChange Data Capture (15)
Database DevelopmentCommon Runtime Language (13)
Database DevelopmentCommon Table Expressions (3)
Database DevelopmentConstraints (20)
Database DevelopmentData Cleansing for Validation (2)
Database DevelopmentData Science (3)
Database DevelopmentData Types (17)
Database DevelopmentDatabase Design (70)
Database DevelopmentDates (49)
Database DevelopmentDebugging (4)
Database DevelopmentDynamic Management Views and Functions (33)
Database DevelopmentDynamic SQL (7)
Database DevelopmentEntity Framework (13)
Database DevelopmentError Handling (8)
Database DevelopmentFull Text Search (21)
Database DevelopmentFunctions System (69)
Database DevelopmentFunctions User Defined UDF (40)
Database DevelopmentIdentities (17)
Database DevelopmentImport and Export (77)
Database DevelopmentIn Memory OLTP (32)
Database DevelopmentJOIN Tables (21)
Database DevelopmentLanguage Integrated Query LINQ (7)
Database DevelopmentMicrosoft Access Integration (8)
Database DevelopmentMicrosoft Excel Integration (40)
Database DevelopmentMicrosoft Flow (1)
Database DevelopmentPaging (5)
Database DevelopmentPython (48)
Database DevelopmentQuery Optimization (14)
Database DevelopmentQuery Plans (20)
Database DevelopmentR Language (11)
Database DevelopmentScripts (35)
Database DevelopmentService Broker (11)
Database DevelopmentSpatial Data Storage (9)
Database DevelopmentSQL Injection (5)
Database DevelopmentSQL Server Management Objects SMO (3)
Database DevelopmentStored Procedures (28)
Database DevelopmentSynonyms (5)
Database DevelopmentTable Valued Parameters (4)
Database DevelopmentTemp Tables (9)
Database DevelopmentTemporal Tables (13)
Database DevelopmentTesting (31)
Database DevelopmentTransactions (8)
Database DevelopmentTriggers (44)
Database DevelopmentTSQL (320)
Database DevelopmentUser Defined Type UDT (3)
Database DevelopmentViews (13)
Database DevelopmentXML (14)
Integration ServicesData Transformation Services (5)
Integration ServicesIntegration Services Administration (10)
Integration ServicesIntegration Services Analysis Services Tasks (5)
Integration ServicesIntegration Services Best Practices (12)
Integration ServicesIntegration Services Configuration Options (21)
Integration ServicesIntegration Services Connection Managers (5)
Integration ServicesIntegration Services Control Flow Transformations (14)
Integration ServicesIntegration Services Data Flow Transformations (19)
Integration ServicesIntegration Services Development (107)
Integration ServicesIntegration Services Email (3)
Integration ServicesIntegration Services Error Handling (8)
Integration ServicesIntegration Services Excel (14)
Integration ServicesIntegration Services Execute Package Options (8)
Integration ServicesIntegration Services Import and Export Wizard (2)
Integration ServicesIntegration Services NULL Management (4)
Integration ServicesIntegration Services Oracle (4)
Integration ServicesIntegration Services Performance (12)
Integration ServicesIntegration Services Security (7)
Integration ServicesIntegration Services Upgrade (4)
Power PlatformPower Apps (17)
Power PlatformPower BI (132)
Power PlatformPower BI Charts (45)
Power PlatformPower BI Formatting (15)
Professional DevelopmentProfessional Development Books (3)
Professional DevelopmentProfessional Development Branding (13)
Professional DevelopmentProfessional Development Career (17)
Professional DevelopmentProfessional Development Career Planning (16)
Professional DevelopmentProfessional Development Career Transition (4)
Professional DevelopmentProfessional Development Certifications (47)
Professional DevelopmentProfessional Development Community (16)
Professional DevelopmentProfessional Development Conferences (2)
Professional DevelopmentProfessional Development Interview Questions BI (15)
Professional DevelopmentProfessional Development Interview Questions DBA (23)
Professional DevelopmentProfessional Development Interview Questions Developer (9)
Professional DevelopmentProfessional Development Interviewing (38)
Professional DevelopmentProfessional Development Job Search (17)
Professional DevelopmentProfessional Development Management (9)
Professional DevelopmentProfessional Development Recruiters (6)
Professional DevelopmentProfessional Development Resume (13)
Professional DevelopmentProfessional Development Skills Development (18)
Reporting ServicesReporting Services Administration (19)
Reporting ServicesReporting Services Analysis Services (4)
Reporting ServicesReporting Services Best Practices (6)
Reporting ServicesReporting Services Charts (25)
Reporting ServicesReporting Services Configuration (10)
Reporting ServicesReporting Services Custom Report (2)
Reporting ServicesReporting Services Dashboard (1)
Reporting ServicesReporting Services Data Sources (10)
Reporting ServicesReporting Services Development (37)
Reporting ServicesReporting Services Drill Through (4)
Reporting ServicesReporting Services Dynamic Reports (11)
Reporting ServicesReporting Services Filtering (3)
Reporting ServicesReporting Services Formatting (26)
Reporting ServicesReporting Services Functions (5)
Reporting ServicesReporting Services Images (2)
Reporting ServicesReporting Services Installation (9)
Reporting ServicesReporting Services KPI (5)
Reporting ServicesReporting Services Maps (4)
Reporting ServicesReporting Services Migration (5)
Reporting ServicesReporting Services Monitoring (5)
Reporting ServicesReporting Services Network Load Balancing (4)
Reporting ServicesReporting Services Overview (5)
Reporting ServicesReporting Services Parameters (15)
Reporting ServicesReporting Services Performance (6)
Reporting ServicesReporting Services Report Builder (9)
Reporting ServicesReporting Services Report Models (1)
Reporting ServicesReporting Services Security (8)
Reporting ServicesReporting Services SharePoint (1)
Reporting ServicesReporting Services Subreports (4)
Reporting ServicesReporting Services Tutorials (1)
SecurityAuditing and Compliance (45)
SecurityEncryption (32)
SecuritySecurity (196)
SecuritySurface Area Configuration Manager (4)
SharePointSharePoint (130)
SharePointSharePoint Administration (46)
SharePointSharePoint Configuration (27)
SharePointSharepoint Design (46)
SharePointSharePoint Document Management (20)
ToolsAzure Data Studio (16)
ToolsSQL Operations Studio (11)
ToolsSQL Server Agent (93)
ToolsSQL Server Management Studio (77)
ToolsSQL Server Management Studio Configuration (22)
ToolsSQL Server Management Studio Shortcuts (9)
ToolsTools (33)