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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%'.
To name a UNIQUE constraint, and to define a UNIQUE constraint on multiple columns, use the following SQL syntax: ALTER TABLE Persons ADD CONSTRAINT UC_Person UNIQUE (ID,LastName);
9 lut 2024 · 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. It must be a full-text indexed column. Search pattern: The text you wish to find within the column, enclosed in single quotes. Operators and Wildcards
Chapter 14 Functions and Operators. Expressions can be used at several points in SQL statements, such as in the ORDER BY or HAVING clauses of SELECT statements, in the WHERE clause of a SELECT, DELETE, or UPDATE statement, or in SET statements. Expressions can be written using values from several sources, such as literal values, column values ...
Learn how to use the powerful "contains" function in MySQL to efficiently search and retrieve data from your database.
23 mar 2023 · What We'll Cover. How to Query for Strings in SQL with the WHERE Clause and LIKE Operator. How to Query for Strings in SQL Server with the CHARINDEX Function. How to Query for Strings in SQL Server with the PATINDEX Function. How to Query for Strings in MySQL with the SUBSTRING_INDEX() Function. Conclusion.
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.
