mysql my_bool类型 一、整数型 1.INT[(width)][UNSIGNED][ZEROFILL] MySQL用4 bytes存储INT型数据,其值在-2,147,483,648到2,147,483,647之间,如果选择了UNSIGNED类型,那么值在0到4,294,967,295。INT和INTEGER可以互换。(width)指定了数字的位数,如果实际的值超出了这个位数,那么(width)会被忽略。如果是UN...
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my_bool Posted by:Donato Zito Date: March 13, 2009 04:37AM Hi, i've noted that declaration of my_bool is a "typedef char my_bool", so i suppose that i must use it as string "true" and "false" (and/or "on" "off"), for example with mysql_options(&mysql, MYSQL_OPT_...
my_ulonglong insert_id; /* id if insert on table with NEXTNR */ my_ulonglong extra_info; /* Used by mysqlshow */ unsigned long packet_length; enum mysql_status status; MYSQL_FIELD *fields; MEM_ROOT field_alloc; my_bool free_me; /* If free in mysql_close */ my_bool reconnect;...
my_bool reconnect; /* set to 1 if automatic reconnect */ struct st_mysql_options options; char scramble_buff[9]; struct charset_info_st *charset; unsigned int server_language; } MYSQL; 这个结构代表返回行的一个查询的(SELECT,SHOW,DESCRIBE,EXPLAIN)的结果。返回的数据称为“数据集”,用过数据库...
BOOL 或 BOOLEAN:存储布尔值,取值为 TRUE 或 FALSE。 请注意,每种数值类型都有一定的存储范围和精度限制。在选择合适的数值类型时,需要考虑数据的范围和精度要求,以及存储空间的效率。 5.2 字符串类型 CHAR: 用于存储固定长度的字符串。 最多可以存储 255 个字符。
MYSQL_SECURE_AUTH(argument type:my_bool *) Whether to connect to a server that does not support the password hashing used in MySQL 4.1.1 and later. This option is enabled by default. MYSQL_SERVER_PUBLIC_KEY(argument type:char *)
Bug #85131Remove my_bool Submitted:22 Feb 2017 15:30Modified:24 Feb 2017 17:37 Reporter:Steinar GundersonEmail Updates: Status:ClosedImpact on me: None Category:MySQL Server: CompilingSeverity:S3 (Non-critical) Version:OS:Any Assigned to:CPU Architecture:Any ...
包括精确数字类型:INTEGER, SMALLINT,DECIMAL,NUMERIC,近似数字类型:FLOAT, REAL,DOUBLE PRECISION。 INT是INTEGER的同义关键词。DEC和FIXED是DECIMAL的同义关键词。DOUBLE是DOUBLE PRECISION的同义关键词。 除非开启REAL_AS_FLOAT模式,否则默认认为REAL是DOUBLE PRECISION的同义关键词。 BIT类型存储位数值,MyISAM,MEMORY,...
Re: my_bool Posted by:Donato Zito Date: March 13, 2009 04:50AM of course i can use my_bool reconnect = 1; mysql_options(&mysql, MYSQL_OPT_RECONNECT, &reconnect); but it's a curiosity... Subject Views Written By Posted my_bool ...