array_upper(places, 1) -- LOOP -- RAISE NOTICE '%', places[i]; -- single quotes! -- array_append(dummy, places[i]) -- END LOOP; RETURN QUERY select name from atlas_ins_th_travel_place where name in places; END; $$ LANGUAGE plpgsql STABLE; ...
问在Postgres中有效地查询/索引WHERE in (...)和排序依据ENpandas 排序 import pandas as pd import ...
WHERE ${column} = any(#{valueList, typeHandler=}); 增加自定义ElonArrayTypeHandler主要是为将Java的List转换为数据库使用的Array。有两个原因需要这样做:1. 在Java程序中使用容器List的情况多于使用数组。 2. postgres sdk包默认的数组转换器只支持int, long, double, string等少数几种类型,参数类型也必须是i...
//(一般都是根据 id来删除数据 ,我的数据是varchar类型,对应的是string类型的数组 public Integer deleteByArray(String[] str ); 1. 2. 然后老套路第二步,在表映射XML文件里写好具体实现 /Mybatis02/config/mappers/GoodsInfoMapper.xml <delete id="deleteByArray"> delete from goods where id in <for...
// 假设我们有一个包含多个值的数组$values=array(1,2,3,4,5);// 使用implode函数将数组转换为逗号分隔的字符串$placeholders=implode(',',array_fill(0,count($values),'?'));// 准备SQL查询语句$sql="SELECT * FROM table_name WHERE column_name IN ($placeholders)";// 准备查询参数$params=$valu...
SELECT * FROM 表名 WHERE 表字段 LIKE ANY (ARRAY['%特定字符串%','%特定字符串2%']); 1. OFFSET 偏移量 分页用 OFFSET 数字 获取psql所有表表名注解 with aa as ( select distinct datname as table_catalog, pg_get_userbyid(relowner) as tableowner, ...
inputs => ARRAY[ 'Welcome to the future!', 'Where have you been all this time?' ] ) AS french; 结果: french --- [ {"translation_text": "Bienvenue à l'avenir!"}, {"translation_text": "Où êtes-vous allé tout ce temps?"} ] 使用如下SQL语句执行...
版本>=10的pg,以下三段SQL都要执行CREATE OR REPLACE FUNCTION __tmp_create_user() returns void as $$BEGINIF NOT EXISTS (SELECT -- SELECT list can stay empty for thisFROM pg_catalog.pg_userWHERE usename = 'postgres_exporter') THENCREATE USER postgres_exporter;END IF;END;$$ language plpgsql...
We * copy all subsequent linp's back one slot in the array. We don't use * PageGetItemId, because we are manipulating the _array_, not individual * linp's. */ //上面是获取要删除的元组的偏移及长度,这里要将line pointer整体前移,获取要移动的长度(要删除的下一个到lower的区间是要移动...
postgres中将字符串分割作为IN的条件 ``` WHERE your_column IN (SELECT unnest(string_to_array('DT1,DT2,DT3', ','))); ```