a column specified asSMALLINT(3)has the usualSMALLINTrange of-32768to32767, and values outside ...
mysql> create table t1(id int zerofill); #默认显示宽度10 mysql> insert into t1 values(-1); #取值范围:0--4294967295 ERROR 1264 (22003): Out of range value for column 'id' at row 1 mysql> insert into t1 values(123); mysql> insert into t1 values(12300); mysql> insert into t1 val...
Numeric Data Types Data typeDescription BIT(size)A bit-value type. The number of bits per value is specified insize. Thesizeparameter can hold a value from 1 to 64. The default value forsizeis 1. TINYINT(size)A very small integer. Signed range is from -128 to 127. Unsigned range is...
ERROR1264(22003):Outofrangevalueforcolumn'x'atrow1===无符号tinyint===# 创建表时定义记录的字符为无符号类型(0,255) ,使用unsigned mysql>createtablet2(x tinyint unsigned); # 报错,超出范围 mysql>insertintot2values(-129); ERROR1264(22003):Outofrangevalueforcolumn'x'atrow1# 插入成功 mysql>in...
可以看到,这里查询使用了主键,同时type显示的是range,也就是使用索引范围查询,而不是system和const或是eq_ref。这就说明,使用in运算符来进行查询的时候,其效果和>、<、=等比较运算符是一样的(p.s. in运算符也是比较运算符)。也就是说,使用in运算符之后,如果没有使用order by来指定其他的排序顺序,那么...
columns分区支持一个或者多个字段作为分区键,不支持表达式作为分区键,这点区别于range 和 list 分区。需要注意的是range columns 分区键的比较是基于元组的比较,也就是基于字段组的比较,这和range分区有差异。create talbe rc3 (a int,b int)partition by range columns(a, b) (partition p01 values less than...
(Item_int *) 0x7f7cf0d96b70 value = 4 ) `--$d58 (SEL_ROOT *) 0x7f7cf17c1420 [type=SEL_ROOT::Type::KEY_RANGE, use_count=1, elements=1] `--$d59 (SEL_ARG *) 0x7f7cf17c13a0 [color=SEL_ARG::BLACK, is_asc=true, minflag=4 '\004', maxflag=8 '\b', part=0 '\...
INSERT INTO tb_datatype VALUES(32768) > 1264 - Out of range value for column 'smallintcol' at row 1 > 时间: 0s -- 2 反例验证decimal范围 #2.1 整数部分最多65位 ALTER TABLE tb_datatype ADD decimalcol decimal(66,29) > 1426 - Too big precision 66 specified for 'decimalcol'. Maximum...
int类型默认显示宽度为int(11),无符号int类型默认显示宽度为int(10)。 CREATE TABLE test_int3( f1 INT UNSIGNED ); mysql> desc test_int3; +---+---+---+---+---+---+ | Field | Type | Null | Key | Default | Extra | +---+---+---+---+---+---+ | f1 | int(10) unsi...
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...