What does sargable mean?
Definitions for sargable
sar·gable
This dictionary definitions page includes all the possible meanings, example usage and translations of the word sargable.
Wiktionary
sargableadjective
being able to use indexes to speed up execution
Wikipedia
Sargable
In relational databases, a condition (or predicate) in a query is said to be sargable if the DBMS engine can take advantage of an index to speed up the execution of the query. The term is derived from a contraction of Search ARGument ABLE. It was first used by IBM researchers as a contraction of Search ARGument, and has come to mean simply "can be looked up by an index."1A query failing to be sargable is known as a non-sargable query and typically has a negative effect on query time, so one of the steps in query optimization is to convert them to be sargable. The effect is similar to searching for a specific term in a book that has no index, beginning at page one each time, instead of jumping to a list of specific pages identified in an index. The typical situation that will make a SQL query non-sargable is to include in the WHERE clause a function operating on a column value. The WHERE clause is not the only clause where sargability can matter; it can also have an effect on ORDER BY, GROUP BY and HAVING clauses. The SELECT clause, on the other hand, can contain non-sargable expressions without adversely affecting the performance. Some database management systems, for instance PostgreSQL, support functional indices. Conceptually, an index is simply a mapping between a value and one or more locations. With a functional index, the value stored in the index is the output of the function specified when the index is created. This capability expands what is sargable beyond base column expressions. Sargable operators: =, >, <, >=, <=, BETWEEN, LIKE, IS [NOT] NULL, IN Sargable operators that rarely improve performance: <>, NOT, NOT IN, NOT LIKE
Wikidata
Sargable
In relational databases, a condition in a query is said to be sargable if the DBMS engine can take advantage of an index to speed up the execution of the query. The term is derived from a contraction of Search ARGument ABLE. A query failing to be sargable is known as Non-Sargable query and has an effect in query time, so one of the steps in query optimization is convert them to be sargable. The typical thing that will make a sql query non-sargable is to include in the WHERE clause, a function operating on a column value. Note that the WHERE clause is not the only clause where sargability can matter; it can also have an effect on ORDER BY, GROUP BY and HAVING clauses. The SELECT clause, on the other hand, can contain non-sargable expressions without adversely affecting the performance to retrieve and return the results. ⁕Sargable operators: =,>,=,
Numerology
Chaldean Numerology
The numerical value of sargable in Chaldean Numerology is: 2
Pythagorean Numerology
The numerical value of sargable in Pythagorean Numerology is: 2
Translations for sargable
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- SargableGerman
- SargableSpanish
- sargableFinnish
- sargableFrench
- sargableItalian
- SargablePortuguese
- sargableRussian
- заступникUkrainian
- sargableVietnamese
- 优化搜索Chinese
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"sargable." Definitions.net. STANDS4 LLC, 2024. Web. 19 Mar. 2024. <https://www.definitions.net/definition/sargable>.
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