Αποτελέσματα Αναζήτησης
I've been trying to figure out how I can make a query with MySQL that checks if the value (string $haystack) in a certain column contains certain data (string $needle), like this: SELECT * FROM `table` WHERE `column`.contains('{$needle}')
12 Φεβ 2024 · One effective method to check if a particular string occurs in a MySQL table is by utilizing the SELECT statement along with the LOCATE() function. The LOCATE() function in MySQL is employed to find the position of the first occurrence of a substring within a given string.
12 Μαΐ 2024 · In MS SQL, we can utilize the CHARINDEX() function to search for a substring’s position: SELECT * FROM Product WHERE CHARINDEX('Milk', description) > 0 OR CHARINDEX('Dark', description) > 0; Like POSITION(), CHARINDEX() returns the 1-based index of the search substring or 0 if it isn’t in the string. 7. Comparison
MAKE_SET(bits, str1, str2,...) Returns a set value (a string containing substrings separated by , characters) consisting of the strings that have the corresponding bit in bits set. str1 corresponds to bit 0, str2 to bit 1, and so on. NULL values in str1, str2, ... are not appended to the result.
31 Οκτ 2023 · To utilize the MySQL query string contains functionality, you can use the LIKE operator in combination with the % wildcard character. This allows you to search for a specific string within a column of a table. Here are two possible approaches to using the MySQL query string contains: Approach 1: Using the LIKE Operator
3 Νοε 2014 · This will achieve the results you want when you put the string you are looking for using just the % for the wildcard on either side. select variables from test WHERE variables LIKE '%ifIndex%';
Whether the result of a query contains no rows: SELECT NOT EXISTS (SELECT * FROM t WHERE col LIKE 'c%'); -> 0 SELECT NOT EXISTS (SELECT * FROM t WHERE col LIKE 'd%'); -> 1; GREATEST(value1,value2,...) With two or more arguments, returns the largest (maximum-valued) argument.
