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The CONVERT () function converts a value into the specified datatype or character set. Tip: Also look at the CAST () function. Syntax. CONVERT (value, type) OR: CONVERT (value USING charset) Parameter Values. Technical Details. More Examples. Example. Convert a value to a CHAR datatype: SELECT CONVERT(150, CHAR); Try it Yourself » Example.
18 gru 2019 · SELECT CONCAT('ALTER TABLE `', TABLE_SCHEMA, '`.`', TABLE_NAME, '` CHARACTER SET utf8mb4 COLLATE utf8mb4_0900_ai_ci;') FROM information_schema.TABLES WHERE TABLE_SCHEMA NOT IN ('sys','mysql','information_schema','performance_schema','innodb') AND TABLE_TYPE = 'BASE TABLE' AND TABLE_SCHEMA LIKE 'database_name';
25 sty 2024 · If you wish to set a default charset and collation for future tables created within a database, you can use the following command: ALTER DATABASE database_name. CHARACTER SET = utf8mb4 COLLATE = utf8mb4_unicode_ci; Replace ‘database_name’ with the name of your database.
Assuming that the information in the column is encoded using a single character set, you can convert it to a nonbinary column that has that character set. For example, if col1 contains binary data representing characters in the greek character set, you can convert it as follows:
Converting between different character sets. MySQL provides two functions that allow you to convert strings between different character sets: CONVERT and CAST. The syntax of the CONVERT function is as follows: CONVERT(expression USING character_set_name) Code language: SQL (Structured Query Language) (sql) The CAST function is similar to the ...
To convert strings between character sets, you can also use CONVERT(expr, type) syntax (without USING), or CAST(expr AS type), which is equivalent: CONVERT(string, CHAR[(N)] CHARACTER SET charset_name) CAST(string AS CHAR[(N)] CHARACTER SET charset_name) Examples:
25 sty 2024 · You can get the default character set and collation of the table itself with: SHOW TABLE STATUS LIKE 'your_table_name'; Changing the Charset and Collation of a Table. The basic syntax for changing the character set and collation of a table is as follows: ALTER TABLE your_table_name CONVERT TO CHARACTER SET charset_name COLLATE collation_name;
