Sequelize.js 如何计算列的值并按范围分组?
如果我在一个表中有一个年龄列,我怎样才能检索到5个范围内的值的计数 我目前有一个查询,它只获取年龄不为null或未定义的用户计数Sequelize.js 如何计算列的值并按范围分组?,sequelize.js,Sequelize.js,如果我在一个表中有一个年龄列,我怎样才能检索到5个范围内的值的计数 我目前有一个查询,它只获取年龄不为null或未定义的用户计数 User.findAll({ where: { age: { [Op.not]: null, [Op.notIn]: ['null', 'undefined'] }, }, group: ['age', 'count'], attributes: [
User.findAll({
where: {
age: {
[Op.not]: null,
[Op.notIn]: ['null', 'undefined']
},
},
group: ['age', 'count'],
attributes: [
['age', 'label'],
[Sequelize.fn('count', Sequelize.col('user_id')), 'count']
],
})
电流输出:
{标签:28,计数:86}
预期结果:
ages: {
0-20: 5,
20-40: 39,
40-60:28,
60-80:11,
80-100:3
}
最后,我使用了一个文本查询:
User.findAll({
where: {
age: {
[Op.not]: null,
[Op.notIn]: ['u', 'undefined', 'x', '']
}
},
attributes: [
[Sequelize.literal('COUNT (CASE WHEN age < 20 THEN age END)'), '<20'],
[Sequelize.literal('COUNT (CASE WHEN age >= 20 AND age <= 29 THEN age END)'), '20-29'],
[Sequelize.literal('COUNT (CASE WHEN age >= 30 AND age <= 39 THEN age END)'), '30-39'],
[Sequelize.literal('COUNT (CASE WHEN age >= 40 AND age <= 49 THEN age END)'), '40-49'],
[Sequelize.literal('COUNT (CASE WHEN age >= 50 THEN age END)'), '≥50'],
[Sequelize.fn('count', Sequelize.col('user_id')), 'count']
]
}),
User.findAll({
其中:{
年龄:{
[Op.not]:空,
[Op.notIn]:[u',“未定义”,“x',”]
}
},
属性:[
[Sequelize.literal('COUNT(当年龄<20岁时,则年龄结束)'),'=20,年龄=30,年龄=40,年龄=50,则年龄结束)'≥50'],
[Sequelize.fn('count',Sequelize.col('user_id'),'count']
]
}),
所以最后我使用了一个文本查询:
User.findAll({
where: {
age: {
[Op.not]: null,
[Op.notIn]: ['u', 'undefined', 'x', '']
}
},
attributes: [
[Sequelize.literal('COUNT (CASE WHEN age < 20 THEN age END)'), '<20'],
[Sequelize.literal('COUNT (CASE WHEN age >= 20 AND age <= 29 THEN age END)'), '20-29'],
[Sequelize.literal('COUNT (CASE WHEN age >= 30 AND age <= 39 THEN age END)'), '30-39'],
[Sequelize.literal('COUNT (CASE WHEN age >= 40 AND age <= 49 THEN age END)'), '40-49'],
[Sequelize.literal('COUNT (CASE WHEN age >= 50 THEN age END)'), '≥50'],
[Sequelize.fn('count', Sequelize.col('user_id')), 'count']
]
}),
User.findAll({
其中:{
年龄:{
[Op.not]:空,
[Op.notIn]:[u',“未定义”,“x',”]
}
},
属性:[
[Sequelize.literal('COUNT(当年龄<20岁时,则年龄结束)'),'=20,年龄=30,年龄=40,年龄=50,则年龄结束)'≥50'],
[Sequelize.fn('count',Sequelize.col('user_id'),'count']
]
}),