64 characters for a table name is quite a lot unless you're writing a small novel in each table name. include/mysql_com.h:#define NAME_LEN 64 /* Field/table name length */ I also see a couple places where characters are added to the end for buffers to handle file extensions. While most other databases refer to this information as a catalog, the official MySQL documentation refers to the INFORMATION_SCHEMA metadata as tables.. Attributes per table. ; Third, sort the result set by the result of the LENGTH function and get five rows from the sorted result set. Like most relational databases, MySQL provides useful metadata about the database itself. The following MySQL statement returns the pub_name and length of pub_name from publisher table who have the length of there is more than or equal to 20. This section describes the permissible syntax for identifiers in MySQL. The maximum number of attributes (that is, columns and indexes) that can belong to a given table is 512. It used to be `table_name` varchar(64) COLLATE utf8_bin NOT NULL, 8.0 changes it to `table_name` varchar(199) COLLATE utf8_bin NOT NULL, If it is still 64, simulate what mysql… To determine the sizes of all of your databases, at the mysql> prompt type the following command: SELECT table_schema AS "Database", ROUND(SUM(data_length + index_length) / 1024 / 1024, 2) AS "Size (MB)" FROM information_schema.TABLES GROUP BY table_schema; Check your installed MySQL version. I've been working with databases for a couple of decades; I only hit limits on table name length regularly when working with [full-blown] Oracle (how they can still justify only 30 characters for a table name, I'll never know). Certain objects within MySQL, including database, table, index, column, alias, view, stored procedure, partition, tablespace, resource group and other object names are known as identifiers. The maximum number of all NDB database objects in a single NDB Cluster—including databases, tables, and indexes—is limited to 20320. Have you tried tables of 60, 61 and 63 characters. How the query works. Code: SELECT pub_name,LENGTH(pub_name) FROM publisher WHERE LENGTH(pub_name)>=20; Sample table: publisher USE mysql; SHOW CREATE TABLE innodb_index_stats ; Check, in particular, the definition of table_name. When you type the correct password, the mysql> prompt appears. Example of MySQL LENGTH() function with where clause . Regardless of the name, what matters is the information provided by these INFORMATION_SCHEMA tables. Number of database objects. Hi All, I have several question regard to the table name (or column name) longer than 32 character and data types in SAS: 1) If Teradata table name is longer than 32 character, how can SAS handle it? mysql> CREATE TABLE pet (name VARCHAR(20), owner VARCHAR(20), species VARCHAR(20), sex CHAR(1), birth DATE, death DATE); VARCHAR is a good choice for the name , owner , and species columns because the column values vary in length. ; Second, apply the LENGTH function to return the number of characters of the full name of each employee. I took a glance at the source code and table name lengths do appear to be set at 64 characters. The maximum length of a table name is 64 characters long according to MySQl version 8.0.12. First, use the CONCAT function to construct the full name of the employee by concatenating the first name, space, and last name. 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