WebFeb 20, 2024 · In PostgreSQL, SMALLINT can also be declared as INT2. As shown in the table, smallint takes 2 bytes of storage to store any number in the range of -32768 to +32768. It is ideal for small integer numbers such as a number of categories (which can … WebJul 30, 2024 · MySQL MySQLi Database The maximum value of SMALLINT (6) unsigned in MySQL is 65535. The number 6 does not affect the actual range. It can only be used to display width on the command line. The Minimum Value signed is -32768 The Maximum Value unsigned is 65535 The Maximum value signed is 32767
int, bigint, smallint, and tinyint (Transact-SQL) - SQL Server
WebNov 10, 2024 · Just like int and varchar, we saw in the example, MySQL provides many types of data types which have been categorized into 3 broad categories. Let’s look into each one of them. 1 – String/Character Data types in MySQL 2 – Numeric Data types in MySQL 3 – … WebApr 14, 2024 · TINYINT数据类型 长度: 长度为1个字节的有符号整型。 范围: [-128, 127] 转换: Doris可以自动将该类型转换成更大的整型或者浮点类型。 使用CAST ()函数可以将其转换成CHAR。 举例: select cast(100 as char); SMALLINT数据类型 长度: 长度为2个字节的有符号整型。 范围: [-32768, 32767] 转换: Doris可以自动将该类型转换成更大的整型或者浮点类型 … thump york bend
mysql - INT (5) vs SMALLINT (5): numbers in parenthesis …
WebA small integer. The signed range is -32768 to 32767. The unsigned range is 0 to 65535. If a column has been set to ZEROFILL, all values will be prepended by zeros so that the SMALLINT value contains a number of M digits. Note: If the ZEROFILL attribute has been … WebApr 9, 2024 · tinyint类型的数据占1字节的空间,是二进制的8位,是众多整数类型中占用字节最小的数据类型,tinyint类型的数据的默认显示宽度为4位数字的宽度。 2.smallint类型的数据 smallint类型的数据占用2字节的空间。 默认的显示的宽度是11位数字的宽度。 3.int类型的数据 int类型的数据占用4个字节的空间,默认显示的宽度是11位数字的宽度。 4.integer类 … WebApr 6, 2024 · 使用EXPLAIN关键字可以模拟优化器执行SQL语句,分析你的查询语句或是结构的性能瓶颈。 在 select 语句之前增加 explain 关键字,MySQL 会在查询上设置一个标记,执行查询会返回执行计划的信息,并不会执行这条SQL。 EXPLAIN返回字段 explain字段详解 1. id列 id表示查询语句的序号,自动分配,顺序递增,值越大,执行优先级越高。 id相同 … thump your skull