Built-in Operators Relational Operators The following operators compare the passed operands and generate a TRUE or FALSE value depending on whether the comparison between the operands holds. Operator Operand types Description A = B All primitiv
1.等值比较: =语法:A=B操作类型:所有基本类型描述: 如果表达式A与表达式B相等,则为TRUE:否则为FALSEhive> select 1 from iteblog where 1=1;2.不等值比较: <>语法: A <> B操作类型: 所有基本类型描述: 如果表达式A为NULL,或者表达式B为NULL,返回NULL:如果表达式A与表达式B不相等,则为TRUE:否则为FALSEhive> select 1 from iteblog where 1 <&g
date: 2018-11-16 19:03:08 updated: 2018-11-16 19:03:08 Hive sql函数 一.关系运算 等值比较: = select 1 from dual where 1 = 2; 等值比较:<=> a <=> b 不等值比较: <>和!= a != b || a <> b 小于比较: < a < b 小于等于比较: <= a <= b 大于比较: > a > b 大于等于比较: