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https://dev.mysql.com/doc/refman/5.7/en/mysql-cluster-programs-ndb-size-pl.html
This is a Perl script that can be used to estimate the amount of space that would be required by a MySQL database if it were converted to use the NDBCLUSTER storage engine. Unlike the other utilities discussed in this section, it does not require ...
https://dev.mysql.com/doc/refman/5.7/en/mysql-cluster-programs-ndbinfo-select-all.html
--connect-string Command-Line Format --connect-string=connection-string Type String Default Value [none] Same as --ndb-connectstring. --defaults-extra-file Command-Line Format --defaults-extra-file=path Type String Default Value [none] Read given ...
https://dev.mysql.com/doc/refman/5.7/en/mysql-cluster-programs-ndb-top.html
--password[=password], -p Command-Line Format --password=password Type String Default Value NULL Connect to a MySQL Server using this password and the MySQL user specified by --user. --defaults-extra-file Command-Line Format ... ndb_top displays ...
https://dev.mysql.com/doc/refman/5.7/en/generated-column-index-optimizations.html
row *************************** id: 1 select_type: SIMPLE table: t1 partitions: NULL type: range possible_keys: gc key: gc key_len: 5 ref: NULL rows: 1 filtered: 100.00 Extra: Using index condition In effect, the optimizer has replaced the ...For ...
https://dev.mysql.com/doc/refman/5.7/en/mysqlbinlog.html
--base64-output=value Command-Line Format --base64-output=value Type String Default Value AUTO Valid Values AUTONEVERDECODE-ROWS This option determines when events should be displayed encoded as base-64 strings using BINLOG statements. The server's ...
https://dev.mysql.com/doc/refman/5.7/en/charset-connection.html
Exception: For string literals that have an introducer such as _utf8mb4 or _latin2, the introducer determines the character set. For comparisons of strings with column values, collation_connection does not matter because columns have their own ... A ...
https://dev.mysql.com/doc/refman/5.7/en/explain.html
In this case, the statement displays output only for the columns with names matching the string. There is no need to enclose the string within quotation marks unless it contains spaces or other special characters. In practice, the DESCRIBE keyword ...
https://dev.mysql.com/doc/refman/5.7/en/optimizing-innodb-storage-layout.html
Use the VARCHAR data type instead of CHAR to store variable-length strings or for columns with many NULL values. A CHAR(N) column always takes N characters to store data, even if the string is shorter or its value is NULL. Once your data reaches a ...
https://dev.mysql.com/doc/refman/5.7/en/mysql-cluster-programs-ndb-move-data.html
--character-sets-dir=name Command-Line Format --character-sets-dir=path Type String Default Value [none] Directory where character sets are. --connect-string Command-Line Format --connect-string=connection_string Type String Default Value [none] ...
https://dev.mysql.com/doc/refman/5.7/en/arithmetic-functions.html
If any of the operands of a +, -, /, *, % is a real or string value, the precision of the result is the precision of the operand with the maximum precision. (See Section 11.1, “Numeric Data Types”.) / Division: mysql> SELECT 3/5; -> 0.60 ...