About Emrah Idman
Emrah Idman has considerable experience in relational and NoSQL databases. He has worked in a large-scale financial company for over 15 years. He has significant experience in team management, procurement and capacity planning, database administration and product testing for high-volume systems. He is working at ChistaDATA Inc. as senior database administrator.
Contact: Website

ClickHouse March 2023 Release – Version 23.3

Introduction ClickHouse, the open-source, columnar-oriented, distributed SQL database management system, is known for its high-performance analytics and data processing capabilities. With each release, ClickHouse continues to evolve and introduce new features to enhance its functionality […]

ClickHouse String Functions : Part III

Introduction ClickHouse has three types of functions for string operations. These are: General Functions Searching Functions Replacing Functions We aimed to explain the most commonly used functions for replacing in strings with examples in this […]

ClickHouse String Functions : Part II

Introduction ClickHouse has three types of functions for string operations. These are: General Functions Searching Functions Replacing Functions We aimed to explain the most commonly used functions for searching in strings with examples in this […]

Access Remote Server in ClickHouse

In ClickHouse, it is possible to access a remote database without creating a distributed table. For that reason, “remote” or “remoteSecure” functions can be used. “remoteSecure” is the same as “remote” but with a secure […]

ClickHouse Parts and Partitions: Part 2

Introduction In ClickHouse, data is organized into tables, and each table is divided into one or more part/partitions. For detailed information about parts and partitions, please visit Part 1. In this part of the series, […]

ClickHouse Parts and Partitions: Part 1

Introduction In ClickHouse, a physical file on a disk that stores a portion of the table’s data is called a “part”. A “partition,” on the other hand, is a logical division of a table’s data […]

How to use FREEZE command for ClickHouse Backup

Introduction ClickHouse has several backup solutions to restore the disk, database, table, and partition levels. You can access other detailed backup and restore solution documentation here and export/import documentation here. Today, we would like to […]

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