Sergey Gigoyan

Sergey Gigoyan is a database professional (MCSE: Data Platform, MCITP, OCP) with more than 10 years of experience, with a focus on database design and development, performance tuning and optimization, high availability solutions, BI development and DW design. He has worked with SQL Server 2000/2005/2008/2012/2014, Oracle, PostgreSQL databases. He has designed and developed database and DW systems for banking, trading, financial and sales areas. He is now working at Oracle Armenia as a Principal Database Developer. He is continuously developing his professional skills to keep pace with new technologies.

Check out Sergey's blog.

2024 Awards   

2023 Awards   

2021 Awards      

2020 Awards      

2019 Awards   

2017 Awards   

2016 Awards   

2015 Awards   

Category	Tip Title
Auditing and Compliance	Auditing Failed SQL Server Transactions Using Table Variables
Backup	Backup Database Task in SQL Server Maintenance Plans
Backup	SQL Server Backups and Transaction Log Questions
Data Types	SQL Server Bit Data Type
Data Warehousing	SQL Server vs. Snowflake for Data Warehousing
Database Administration	Capture SQL Server Connectivity Errors in the ERRORLOG
Database Administration	Move SQL Server Tables to Different Filegroups
Database Administration	Remove Unnecessary SQL Server Transaction Log Files
Database Administration	SQL Server Move Database Files Step By Step
Database Administration	Synchronizing SQL Server data using rowversion
Database Design	Find and Remove Duplicate Rows from a SQL Server Table
Database Design	SQL Server Management Studio Database Diagram Support Objects Cannot be Installed
Database Mirroring	Configure SQL Server Database Mirroring using T-SQL
Debugging	Some Tricky Situations When Working with SQL Server NULLs
Debugging	Using SQL Server Profiler to Capture Stored Procedures Executions
Encryption	Storing passwords in a secure way in a SQL Server database
Error Handling	SQL Server transaction count after EXECUTE indicates a mismatching number of BEGIN and COMMIT statements
Extended Events	Capture Executions of Stored Procedures in SQL Server
Import and Export	Using Global Temporary Staging Tables for SQL Server Data Importing
Indexing	Difference between SQL Server Unique Indexes and Unique Constraints
Indexing	SQL Index Rebuild vs Reorganize Comparison
Indexing	SQL Server Maintenance Plan Reorganize Index and Update Statistics Tasks
Indexing	SQL Server Maintenance Plans Rebuild Index Task
Install and Uninstall	Error Installing .NET 3.5 for SQL Server
Install and Uninstall	Install SQL Server from Configuration File with Installation Center
Integration Services Development	Install SQL Server Integration Services in Visual Studio 2019
Integration Services Security	Connecting to Integration Services Access is Denied in SQL Server 2016 or 2017
JOIN Tables	Joining SQL Server tables using large character type columns
Locking and Blocking	Compare Repeatable Read and Serializable SQL Server Transaction Isolation Levels
Locking and Blocking	Compare SQL Server NOLOCK and READPAST Table Hints
Locking and Blocking	Monitor Deadlocks in SQL Server with system_health Extended Events
Locking and Blocking	Setting SQL Deadlock Priority to Control the Transaction that is Rolled Back
Locking and Blocking	SQL Server UPDATE lock and UPDLOCK Table Hints
Maintenance	Create a New SQL Server Maintenance Plan with the Maintenance Plan Designer
Maintenance	Getting Started with SQL Server Maintenance Plans - Part 1
Maintenance	SQL Server Maintenance Plan Execute T-SQL and SQL Server Agent Job Tasks
Maintenance	SQL Server Maintenance Plan Shrink Database Task
Maintenance	SQL Server Maintenance Plans History Cleanup Task
Maintenance	SQL Server Maintenance Plans Maintenance Cleanup Task
Maintenance	Transfer SQL Server Maintenance Plans Between Servers
Professional Development Interview Questions Developer	SQL Server Interview Questions for Developers on Querying
Referential Integrity	SQL Server Referential Integrity without Foreign Keys
Restore	Issues with SQL Server Permissions to Restore a Database
Restore	Solve Common SQL Server Restore Issues
Security	SQL Server Dynamic Data Masking in Practice
Snowflake	Behavior of Scoped Transactions in Snowflake
Snowflake	Compare Snowflake vs SQL Server GREATEST and LEAST Functions
Snowflake	Convert OUTER APPLY and CROSS APPLY Joins for Snowflake using LEFT JOINS
Snowflake	How Snowflake Creates and Detects Deadlocks
Snowflake	Learn Snowflake Constraints Primary Key, Unique Key, Foreign Key and Not Null
Snowflake	Snowflake DDL and DML Statements in Transactions compared to SQL Server - Part 2
Snowflake	Snowflake Dynamic Data Masking Examples
Snowflake	Snowflake for Microsoft SQL Server Developers - Transactions - Part 1
Snowflake	Snowflake for SQL Server Developers - NULL Functions - Part 2
Snowflake	Snowflake for SQL Server Developers - Transactions in Stored Procedures
Snowflake	Snowflake Resource Monitors to Track Resource Usage
Snowflake	Snowflake SELECT Statement Capabilities
Snowflake	Snowflake Temporary Tables and Transient Tables vs. SQL Temporary Tables
Snowflake	Snowflake Temporary Tables vs. Transient Tables
Snowflake	Useful Commands for Snowflake Transactions
Snowflake	Using Stored Procedures inside Snowflake Transactions
Snowflake	Working with SQL Server and Snowflake NULL Functions - ISNULL, COALESCE, NULLIF
SQL Server and Oracle Comparison	Comparing SQL Server and Oracle Backup Types
SQL Server Configurations	How to Check SQL Server Version When Service is Not Running
SQL Server Configurations	Setting a fixed amount of memory for SQL Server
SQL Server Configurations	SQL Server Configuration Manager Error The Parameter is Invalid
SQL Server Management Studio	Debugging T-SQL Code in SQL Server Management Studio
SQL Server Management Studio	Executing large scripts in SQL Server Management Studio with Insufficient Memory Failures
SQL Server Management Studio	How to Install SQL Server Management Studio on your Local Computer
SQL Server Management Studio	SQL Server Database Diagram Index was Outside the Bounds of the Array
SQL Server Management Studio	SQL Server Management Studio Connection to Integration Services Error Class Not Registered
SQL Server Management Studio	SQL Server Management Studio Tips – Generating Scripts
SQL Server Management Studio	SQL Server Single User Mode Connection with SQL Server Management Studio
SQL Server Management Studio Configuration	SQL Server Management Studio Productivity Tips
SQL Server Management Studio Configuration	SQL Server Management Studio Recovery, Reporting, Key Combinations and Efficiency Tips
System Databases	Five facts about the SQL Server Master Database
System Databases	Five facts about the SQL Server Model Database
System Databases	Five facts about the SQL Server MSDB Database
System Databases	Five Facts about the SQL Server Resource Database
System Databases	Five facts about the SQL Server Tempdb Database
System Databases	How to Rebuild the SQL Server Tempdb Database
System Databases	Move SQL Server Files for Master Database
System Databases	Move SQL Server System Database Files - Part 1
System Databases	Rebuild System Databases in SQL Server
Temp Tables	Exploring SQL Server 2014 Table Variables
Temp Tables	SQL Server Global Temporary Table Visibility
Transactions	Compare SQL Server XACT_STATE vs @@TRANCOUNT Functions
Transactions	DDL commands in SQL Server with Examples for Snapshot Isolation Level
Transactions	DDL commands in Transactions in SQL Server versus Oracle
Transactions	Handling SQL Server transactions in nested stored procedures using Savepoints
Transactions	SQL Server READ_COMMITTED_SNAPSHOT Database Option and READ COMMITTED Transaction Isolation Level
Transactions	Understanding SQL Server Transaction Savepoints
TSQL	Compare SQL Server Features - Decimal vs Numeric, Timestamp vs Rowversion, Unique Index vs Unique Constraint
TSQL	Comparing PARSEONLY and NOEXEC options in SQL Server
TSQL	Comparison of SQL Server Serializable and Snapshot isolation levels
TSQL	Creating a table using the SQL SELECT INTO clause - Part 1
TSQL	Find MAX value from multiple columns in a SQL Server table
TSQL	Handling Transactions in Nested SQL Server Stored Procedures
TSQL	READ_COMMITTED_SNAPSHOT and SNAPSHOT_ISOLATION levels in SQL Server
TSQL	SQL SELECT INTO Examples for New Tables - Part 2
TSQL	SQL Server CASE Statement Example
TSQL	SQL Server LIKE Syntax with Wildcard Characters
TSQL	SQL Statements Where Semicolon is Required
TSQL	Write more compact SQL Server code using new features
TSQL	Write More Compact SQL Server Code Using New Features - Part 2

No Records Found

No Records Found

CategoryGroup	Category (articles)
Analysis Services	Analysis Services Administration (33)
Analysis Services	Analysis Services Development (95)
Analysis Services	Analysis Services Dimensions (16)
Analysis Services	Analysis Services Measure Groups (7)
Analysis Services	Analysis Services Performance (14)
Analysis Services	Analysis Services Security (7)
Analysis Services	Analysis Services Tutorials (6)
Business Intelligence	Artificial Intelligence (35)
Business Intelligence	Big Data (25)
Business Intelligence	Data Science (3)
Business Intelligence	Data Warehousing (8)
Business Intelligence	Import and Export (81)
Business Intelligence	R Language (11)
Business Intelligence	Snowflake (28)
Cloud	Amazon AWS (39)
Cloud	Amazon AWS RDS (22)
Cloud	Azure (154)
Cloud	Azure Backup and Restore (25)
Cloud	Azure Cosmos DB (15)
Cloud	Azure Functions (7)
Cloud	Azure SQL Database (52)
Cloud	Azure SQL Managed Instance (7)
Cloud	Cloud Strategy (31)
Cloud	Google Cloud (10)
Cloud Analytics	Apache Spark (13)
Cloud Analytics	Azure Data Factory (73)
Cloud Analytics	Azure Databricks (40)
Cloud Analytics	Azure Integration Services (14)
Cloud Analytics	Azure Synapse Analytics (43)
Cloud Analytics	Microsoft Fabric (38)
Data Quality	Data Cleansing for Validation (5)
Data Quality	Data Quality Services (10)
Data Quality	Master Data Services (41)
Database Administration	Central Management Servers (10)
Database Administration	Comparison Data and Objects (15)
Database Administration	Database Administration (214)
Database Administration	DBA Best Practices (39)
Database Administration	Dedicated Administrator Connection (4)
Database Administration	Scripts (35)
Database Administration	System Databases (31)
Database Configuration	Compression (22)
Database Configuration	Database Configurations (20)
Database Configuration	Database Mail (19)
Database Configuration	FILESTREAM (9)
Database Configuration	Full Text Search (21)
Database Configuration	In Memory OLTP (32)
Database Configuration	Linked Servers (18)
Database Configuration	Policy Based Management (29)
Database Configuration	Recovery Models (4)
Database Configuration	Resource Governor (5)
Database Configuration	SQL Server Configurations (75)
Database Design	Constraints (20)
Database Design	Data Types (22)
Database Design	Database Design (97)
Database Design	Identities (17)
Database Design	JOIN Tables (23)
Database Design	Synonyms (5)
Database Design	Table Valued Parameters (4)
Database Design	Temp Tables (16)
Database Design	Temporal Tables (13)
Database Design	User Defined Type UDT (3)
Database Design	Views (17)
Database Development	Application Development (55)
Database Development	Common Runtime Language (13)
Database Development	Debugging (4)
Database Development	DevOps (40)
Database Development	Entity Framework (13)
Database Development	Language Integrated Query LINQ (7)
Database Development	Paging (5)
Database Development	Referential Integrity (5)
Database Development	Service Broker (11)
Database Development	Testing (32)
Database Development	XML (15)
Database Maintenance	Database Console Commands DBCCs (25)
Database Maintenance	Fragmentation and Index Maintenance (28)
Database Maintenance	Maintenance (34)
Disaster Recovery / High Availability	Availability Groups (81)
Disaster Recovery / High Availability	Backup (81)
Disaster Recovery / High Availability	Clustering (77)
Disaster Recovery / High Availability	Database Mirroring (33)
Disaster Recovery / High Availability	Disaster Recovery (23)
Disaster Recovery / High Availability	High Availability (3)
Disaster Recovery / High Availability	Log Shipping (18)
Disaster Recovery / High Availability	Replication (78)
Disaster Recovery / High Availability	Restore (43)
Functions	Dates (56)
Functions	Functions System (99)
Functions	Functions User Defined UDF (41)
Infrastructure	Contained Databases (4)
Infrastructure	Containers (13)
Infrastructure	Hardware (13)
Infrastructure	Spatial Data Storage (9)
Infrastructure	Virtualization (25)
Integration Services Admin	Integration Services Administration (10)
Integration Services Admin	Integration Services Best Practices (12)
Integration Services Admin	Integration Services Configuration Options (22)
Integration Services Admin	Integration Services Performance (12)
Integration Services Admin	Integration Services Security (7)
Integration Services Admin	Integration Services Upgrade (4)
Integration Services Development	Data Transformation Services (6)
Integration Services Development	Integration Services Analysis Services Tasks (5)
Integration Services Development	Integration Services Connection Managers (5)
Integration Services Development	Integration Services Control Flow Transformations (14)
Integration Services Development	Integration Services Data Flow Transformations (19)
Integration Services Development	Integration Services Development (118)
Integration Services Development	Integration Services Error Handling (8)
Integration Services Development	Integration Services Excel (14)
Integration Services Development	Integration Services Execute Package Options (8)
Integration Services Development	Integration Services Oracle (4)
Microsoft Office	Microsoft Access Integration (8)
Microsoft Office	Microsoft Excel Integration (46)
Microsoft Office	Microsoft Flow (1)
Other RDBMS	Other Database Platforms (16)
Other RDBMS	PostgreSQL (16)
Other RDBMS	SQL Server and Oracle Comparison (30)
Other RDBMS	SQL Server on Linux (78)
Other RDBMS	SQL Server vs Oracle vs PostgreSQL Comparison (20)
Performance	Dynamic Management Views and Functions (34)
Performance	Error Logs (12)
Performance	Extended Events (22)
Performance	Indexing (97)
Performance	Locking and Blocking (44)
Performance	Monitoring (110)
Performance	Partitioning (17)
Performance	Performance Data Warehouse (4)
Performance	Performance Tuning (129)
Performance	Profiler and Trace (20)
Performance	Query Optimization (15)
Performance	Query Plans (20)
Performance	Query Store (9)
Power Platform	Power Apps (20)
Power Platform	Power BI (181)
Power Platform	Power BI Charts (59)
Power Platform	Power BI Formatting (17)
Professional Development	Professional Development Branding (16)
Professional Development	Professional Development Career (18)
Professional Development	Professional Development Career Planning (21)
Professional Development	Professional Development Certifications (64)
Professional Development	Professional Development Community (16)
Professional Development	Professional Development Interview Questions BI (18)
Professional Development	Professional Development Interview Questions DBA (23)
Professional Development	Professional Development Interview Questions Developer (9)
Professional Development	Professional Development Interviewing (40)
Professional Development	Professional Development Job Search (24)
Professional Development	Professional Development Management (14)
Professional Development	Professional Development Resume (13)
Professional Development	Professional Development Skills Development (18)
Python	Python (102)
Reporting Services Admin	Reporting Services Administration (21)
Reporting Services Admin	Reporting Services Best Practices (6)
Reporting Services Admin	Reporting Services Configuration (10)
Reporting Services Admin	Reporting Services Installation (10)
Reporting Services Admin	Reporting Services Migration (5)
Reporting Services Admin	Reporting Services Monitoring (5)
Reporting Services Admin	Reporting Services Network Load Balancing (4)
Reporting Services Admin	Reporting Services Performance (6)
Reporting Services Admin	Reporting Services Security (9)
Reporting Services Development	Reporting Services Analysis Services (4)
Reporting Services Development	Reporting Services Charts (25)
Reporting Services Development	Reporting Services Data Sources (10)
Reporting Services Development	Reporting Services Development (69)
Reporting Services Development	Reporting Services Dynamic Reports (11)
Reporting Services Development	Reporting Services Formatting (26)
Reporting Services Development	Reporting Services KPI (5)
Reporting Services Development	Reporting Services Overview (6)
Reporting Services Development	Reporting Services Parameters (15)
Reporting Services Development	Reporting Services Report Builder (9)
Security	Auditing and Compliance (49)
Security	Encryption (35)
Security	Security (201)
Security	SQL Injection (5)
Security	Surface Area Configuration Manager (4)
SharePoint	SharePoint (131)
SharePoint	SharePoint Administration (45)
SharePoint	SharePoint Configuration (27)
SharePoint	Sharepoint Design (46)
SharePoint	SharePoint Document Management (20)
SQL Coding	Change Data Capture (16)
SQL Coding	Common Table Expressions (5)
SQL Coding	Dynamic SQL (7)
SQL Coding	Error Handling (13)
SQL Coding	Stored Procedures (32)
SQL Coding	Transactions (10)
SQL Coding	Triggers (44)
SQL Coding	TSQL (355)
Tools	Azure Data Studio (18)
Tools	PowerShell (131)
Tools	SQL Operations Studio (11)
Tools	SQL Server Agent (96)
Tools	SQL Server Management Objects SMO (3)
Tools	SQL Server Management Studio (79)
Tools	SQL Server Management Studio Configuration (22)
Tools	SQL Server Management Studio Shortcuts (10)
Tools	Tools (35)
Versions	Deprecated Features (6)
Versions	Express Edition (16)
Versions	Install and Uninstall (33)
Versions	Licensing (4)
Versions	SQL Server 2016 (96)
Versions	SQL Server 2017 (44)
Versions	SQL Server 2019 (20)
Versions	SQL Server 2022 (21)
Versions	Upgrades and Migrations (54)