array_remove --- {1,3,4} (1 row) 使用数组切片和连接: 如果你只想删除数组中的某个特定位置的元素,可以使用数组切片和连接的方法。 sql -- 删除数组中第二个元素(索引为1) SELECT ARRAY[1, 2, 3, 4, 5][1:1] || ARRAY[1, 2, 3, 4, 5][3:5]; 输出: text array --- {1,3...
数组与字符串之间的转换:可以使用array_to_string()函数,例如: SELECT array_to_string(ARRAY[1, 2, 3], ',') AS str_value; 数组与数组之间的转换:可以使用array_cat()和array_remove()等函数,例如: SELECT array_cat(ARRAY[1, 2], ARRAY[3, 4]); SELECT array_remove(ARRAY[1, 2, 3, 4, 3...
json_build_object(key1, value1, key2, value2, ...): 创建一个JSON对象。 json_build_array(value1, value2, ...): 创建一个JSON数组。 json_set(json, path, new_value): 更新JSON对象中指定路径的值。 json_remove(json, path): 从JSON对象中删除指定路径的值。 json_array_elements(json_array...
array_to_string(ci.reloptions, ' ') from 'fillfactor=([0-9]+)')::smallint, 90) AS fillfactor, i.indnatts, pg_catalog.string_to_array(pg_catalog.textin( pg_catalog.int2vectorout(i.indkey)),' ')::int[] AS indkey FROM pg_catalog.pg_index i JOIN pg_catalog.pg_class ci ON ...
函数:regexp_split_to_array(string text, pattern text [, flags text ])说明:Split string using a POSIX regular expression as the delimiter. See Section 9.7.3 for more information. 利用正则表达式将字符串分割成数组 例子:regexp_split_to_array('hello world', E'\\s+') = {hello,world} ...
[SugarTable("test_remove_cache")] public class TestRemoveCache { [SugarColumn(IsPrimaryKey = true, IsIdentity = true)] public int id { get; set; } [SugarColumn(IsArray = true, ColumnDataType = "int[]")] public int[] arr_col { get; set; } [SugarColumn(IsJson = true, ColumnDat...
const newArray = arrayNilMap(array, elem => transform(elem)); if (newArray === array) { // transform() has not changed any element in the array ! }Parsing literal valuesPostgres implements several literal syntaxes (string-to-something converters), whiches parsers are exposed as helper ...
db.Raw(`SELECT r.rolname AS role_name, ARRAY(SELECT b.rolname FROM pg_catalog.pg_auth_members m JOIN pg_catalog.pg_roles b ON (m.roleid = b.oid) WHERE m.member = r.oid) as memberof FROM pg_catalog.pg_roles r`).Scan(&res) ...
1.1 添加车辆 Path路径/solution/community/household/user/vehicle/add 请求方式 post 接口版本 1.0.1 请求参数 字段名 类型 必填 备注 identityId String 是 用户Id vehicleList JSONArray 是 车辆信息列表(每人在同一个小区内最多10辆... Quick BI报错“column xxx is ambiguous” 产品名称 Quick BI 产品模...
4、函数JSON_ARRAY():创建JSON数组 比如我们添加这么一组数据到dept表中: insert into dept VALUES(7,'部门9','{"deptName": ["1","2","3"], "deptId": "5", "deptLeaderId": "5"}'); insert into dept VALUES(7,'部门9','{"deptName": ["5","6","7"], "deptId": "5", "deptLe...