the data type becomes FLOAT with no M or D values. If p is from 25 to 53, the data type becomes DOUBLE with no M or D values. The range of the resulting column is the same
下面梳理用于解析 MySQL 数据类型的 type 语义组,其中涉及的 symbol 及 symbol 之间的关系如下(图中绿色节点为字符串字面值涉及节点、蓝色节点为其他语义组、灰色节点为其他终结符): 语义组:type type 语义组用于解析 MySQL 中的数据类型。 官方文档:MySQL 参考手册 - Chapter 13 Data Types 返回值类型:PT_type ...
Management node: The role of this type of node is to manage the other nodes within the MySQL Cluster, performing such functions as providing configuration data, starting and stopping nodes, running backup, and so forth. Because this node type manages the configuration of the other nodes, a nod...
undefined: define a value as undefined (not really needed in CLI so usage is discouraged). true/false: creates a boolean value. null: define a null value. Any value not covered by the JSON specification and the rules above is interpreted as a plain string. PREV...
A bit-value type. M indicates the number of bits per value, from 1 to 64. The default is 1 if M is omitted. TINYINT[(M)] [UNSIGNED] [ZEROFILL] A very small integer. The signed range is -128 to 127. The unsigned range is 0 to 255. BOOL, BOOLEAN These types are synonym...
BLOB DATA TYPE BOOLEAN 。。。 对于列出的具体数据类型,可以进一步看详细情况: mysql> ? int Name: 'INT' Description: INT[(M)] [UNSIGNED] [ZEROFILL] A normal-size integer. The signed range is -2147483648 to 2147483647. The unsigned range is 0 to 4294967295. 1.2 快速...
Status:No FeedbackImpact on me: None Category:Connector / JSeverity:S2 (Serious) Version:8.0.15OS:Any Assigned to:CPU Architecture:Any [28 Mar 2019 17:22] Jörg Mattes Description:When using a case/when/then/end statement for a boolean type, the driver cannot determine the value correctl...
removed = models.Booleanfiled(default = Flase) ### from django.db import models class Article(models.Model): # 在定义字段的时候,如果没有指定null=True,那么默认情况下,null=False # 就是不能为空 # 如果想要使用可以为null的BooleanField,那么应该使用NullBooleanField来代替 removed = models.NullBooleanFi...
以下是所有的属性配置,当我们生产环境中遇到问题的时候,就可以用这些参数来排查问题,以及进行一些调优。 1 身份验证的属性 2 连接属性 3 Session 属性 4 网络属性 5 安全属性 6 Statements 属性 7 Prepared Statements 属性 8 Result Sets 属性 9 元数据属性 ...
示例值:[{"Type": "User","Compare": " INC","Value": "andy"}] AuditAll Boolean 是否开启全审计。示例值:true AuditRuleTemplateInfo 审计规则模板的详情 被如下接口引用:DescribeAuditRuleTemplates。 名称类型描述 RuleTemplateId String 规则模板ID。示例值:cdb-art-dnpg9p3r RuleTemplateName String 规则...