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https://dev.mysql.com/option-defaults-equals.html
Options having default values always require an equal sign when assigning a value; failing to do so causes an error. Instead, you must use the equal sign: [mysql] user=jon Now the login attempt succeeds: shell> mysql Welcome to the MySQL monitor.
https://dev.mysql.com/faqs-cjk.html
ucs2 sjis cp932 NOT SIGN 00AC 81CA 3F FULLWIDTH NOT SIGN FFE2 3F 81CA This means that MySQL converts the NOT SIGN (Unicode U+00AC) to sjis code point 0x81CA and to cp932 code point 3F. There are disadvantages to this, and many people would prefer a ... This set of Frequently Asked Questions derives from the experience of MySQL's Support and Development groups in handling many inquiries about CJK (Chinese-Japanese-Korean) ...
https://dev.mysql.com/numeric-type-overview.html
If you specify ZEROFILL for a numeric column, MySQL automatically adds the UNSIGNED attribute to the column. Numeric data types that permit the UNSIGNED attribute also permit SIGNED. However, these data types are signed by default, so the SIGNED ...
https://dev.mysql.com/fulltext-boolean.html
Specifying a trailing plus or minus sign causes InnoDB to report a syntax error. InnoDB full-text search does not support the use of a leading plus sign with wildcard ('+*'), a plus and minus sign combination ('+-'), or leading a plus and minus sign ... MySQL can perform boolean full-text searches using the IN BOOLEAN MODE ...
https://dev.mysql.com/mathematical-functions.html
It is similar to calculating the arc tangent of Y / X, except that the signs of both arguments are used to determine the quadrant of the result. If from_base is a negative number, N is regarded as a signed number. mysql> SELECT COT(12); -> ...mysql> ...
https://dev.mysql.com/control-flow-functions.html
Otherwise, the result is an integer type (with one exception): If all integer types are all signed or all unsigned, the result is the same sign and the precision is the highest of all specified integer types (that is, TINYINT, SMALLINT, MEDIUMINT, ...The second syntax returns the result for the first condition that is ...
https://dev.mysql.com/cast-functions.html
Unlike conversion functions such as CAST(), or CONVERT(), which convert a string from one character set to another, an introducer designates a string literal as having a particular character set, with no conversion involved. For numeric operators ...
https://dev.mysql.com/replication-features-differing-tables.html
ALL_SIGNED Treat promoted integer types as signed values (the default behavior). ALL_SIGNED,ALL_UNSIGNED Treat promoted integer types as signed if possible, otherwise as unsigned. When an integer type is promoted, its signedness is not preserved.
https://dev.mysql.com/creating-ssl-files-using-openssl.html
This section describes how to use the openssl command to set up SSL certificate and key files for use by MySQL servers and clients. The first example shows a simplified procedure such as you might use from the command line. The first two examples ...
https://dev.mysql.com/c-api-prepared-statement-data-structures.html
For integer variables (which can be char for single-byte values or an integer type for larger values), you should also indicate whether the variable has the unsigned attribute by setting the is_unsigned member, described later. unsigned long *length ... Prepared statements use several data structures: To obtain a statement handler, pass a MYSQL connection handler to mysql_stmt_init(), which returns a pointer to a MYSQL_STMT data ...
Document created the 26/06/2006, last modified the 26/10/2018
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