If the scale is 0, DECIMAL values contain no decimal point or fractional part. MySQL supports both of these variant forms of DECIMAL syntax. Similarly, the syntax DECIMAL is equivalent to DECIMAL (M,0), where the implementation is permitted to decide the value of M.
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Percona was founded on the belief that everyone should have access to scalable, secure, efficient, and resilient database software features, without inflated fees or vendor lock-in. In standard SQL, the syntax DECIMAL (M) is equivalent to DECIMAL (M,0). MySQL ENUM uses numeric indexes (1, 2, 3, ) to represents string values. Supporting all major databases, our workload-optimized server. phoenixNAP’s selection of dedicated servers includes powerful systems that let you choose and scale hardware components that fit your specific needs. The ENUM data type provides the following advantages: Compact data storage. Typically, operating system constraints on file sizes determine the effective maximum table size for MySQL databases. Database workloads require a large storage capacity and high memory density in order to efficiently process business-critical data.
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The net of this is that for very large tables (1-200 Million plus rows) indexing against tables is more restrictive. Percona is a market leader in providing best-of-breed enterprise-class software, support,Ĭonsulting, managed services, and training for on-premise and cloud-based open source databases. In MySQL, an ENUM is a string object whose value is chosen from a list of permitted values defined at the time of column creation. So indexed lookups are done in two parts: First MySQL goes to an index and pulls from it the primary key values that it needs to find, then it does a second lookup on the primary key index to find where those values are. It provides more time to focus on key priorities, as users need to spend less time on tuning and administering. SQLite is not directly comparable to client/server SQL database engines such as MySQL, Oracle, PostgreSQL, or SQL Server since SQLite is trying to solve a. Percona Server for MySQL delivers enterprise-grade features and higher uptime, along with a number of key benefits that improve database performance and efficiency. With over 5,300,000 downloads, Percona Server’s self-tuning algorithms and support for extremely high-performance hardware delivers excellent performance and reliability
It provides superior performance, scalability, and instrumentation. Percona Server for MySQL is a free, fully-compatible, enhanced, open source drop-in replacement for MySQL.
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