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25 maj 2011 · Two options: Use the LIKE keyword, along with percent signs in the string. select * from table where field like '%a%' or field like '%b%'.
The LOCATE() function returns the position of the first occurrence of a substring in a string. If the substring is not found within the original string, this function returns 0. This function performs a case-insensitive search.
9 lut 2024 · It's particularly useful for finding specific information in large text fields where the exact location of the data isn't known in advance. Syntax and Parameters. The basic syntax for SQL CONTAINS is as follows: CONTAINS (column_name, 'search_pattern') Key components include: Column name: The field where the search will be performed.
Functions for Use in SELECT and WHERE Clauses. A select_expression or where_definition in a SQL statement can consist of any expression using the functions described next. An expression that contains NULL always produces a NULL value unless otherwise indicated in the documentation for the operators and functions involved in the expression.
This section describes how the server recognizes whether the name of a built-in function is used as a function call or as an identifier, and how the server determines which function to use in cases when functions of different types exist with a given name.
MySQL 8.4 Keywords and Reserved Words. The following list shows the keywords and reserved words in MySQL 8.4, along with changes to individual words from version to version. Reserved keywords are marked with (R). In addition, _FILENAME is reserved.
WHERE Syntax. SELECT column1, column2, ... FROM table_name. WHERE condition; Note: The WHERE clause is not only used in. SELECT statements, it is also used in UPDATE, DELETE, etc.!
