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https://dev.mysql.com/doc/refman/5.7/en/mysql-cluster-tcp-definition.html
SendBufferMemory Version (or later) NDB 7.5.0 Type or units unsigned Default 2M Range 256K - 4294967039 (0xFFFFFEFF) Restart Type Node Restart: Requires a rolling restart of the cluster. TCP_MAXSEG_SIZE Version (or later) NDB 7.5.0 Type or units ...
https://dev.mysql.com/doc/refman/5.7/en/hexadecimal-literals.html
In numeric contexts, MySQL treats a hexadecimal literal like a BIGINT UNSIGNED (64-bit unsigned integer). Hexadecimal literal values are written using X'val' or 0xval notation, where val contains hexadecimal digits (0..9, A..F). Lettercase of the ...
https://dev.mysql.com/doc/refman/5.7/en/partitioning-pruning.html
The core concept behind partition pruning is relatively simple, and can be described as “Do not scan partitions where there can be no matching values”. By doing so, it is possible to expend much less time and effort in finding matching rows than ...
https://dev.mysql.com/doc/refman/5.7/en/arithmetic-functions.html
If both operands are integers and any of them are unsigned, the result is an unsigned integer. For subtraction, if the NO_UNSIGNED_SUBTRACTION SQL mode is enabled, the result is signed even if any operand is unsigned. Table 12.9 Arithmetic ...
https://dev.mysql.com/doc/refman/5.7/en/user-variables.html
You can store a value in a user-defined variable in one statement and refer to it later in another statement. This enables you to pass values from one statement to another. User variables are written as @var_name, where the variable name var_name ...
https://dev.mysql.com/doc/refman/5.7/en/alter-table.html
To retain them, the statement must include them explicitly: ALTER TABLE t1 MODIFY col1 BIGINT UNSIGNED DEFAULT 1 COMMENT 'my column'; For data type changes using CHANGE or MODIFY, MySQL tries to convert existing column values to the new type as well ... ALTER TABLE tbl_name [alter_option [, alter_option] ...] [partition_options] alter_option: { table_options | ADD [COLUMN] col_name column_definition [FIRST | AFTER col_name] | ADD [COLUMN] (col_name column_definition,...) | ADD {INDEX | KEY} [index_name] [index_type] (key_part,...) [index_option] ...
https://dev.mysql.com/doc/refman/5.7/en/glossary.html
The column itself must be of BIGINT UNSIGNED NOT NULL type, with a unique index named FTS_DOC_ID_INDEX. Prior to MySQL 5.6.3, the LSN was a 4-byte unsigned integer. The LSN became an 8-byte unsigned integer in MySQL 5.6.3 when the redo log file size ... These terms are commonly used in information about the MySQL database ...
https://dev.mysql.com/doc/refman/5.7/en/load-data.html
The file can be read from the server host or the client host, depending on whether the LOCAL modifier is given. INTO Statement”.) To write data from a table to a file, use SELECT ... To read the file back into a table, use LOAD DATA. The syntax of ...
https://dev.mysql.com/doc/refman/5.7/en/mathematical-functions.html
mysql> SELECT COT(12); -> -1.5726734063977 mysql> SELECT COT(0); -> out-of-range error CRC32(expr) Computes a cyclic redundancy check value and returns a 32-bit unsigned value. ABS(X) Returns the absolute value of X, or NULL if X is NULL. An ...
https://dev.mysql.com/doc/refman/5.7/en/replace.html
REPLACE [LOW_PRIORITY | DELAYED] [INTO] tbl_name [PARTITION (partition_name [, partition_name] ...)] [(col_name [, col_name] ...)] {VALUES | VALUE} (value_list) [, (value_list)] ... REPLACE [LOW_PRIORITY | DELAYED] [INTO] tbl_name [PARTITION ...