json_array(123, 'abc', NULL, TRUE, FALSE)---[123,"abc",null,1,0] 再看几个其他的例子: SELECTjson_array(1,2,'3',4),json_array('[1,2]'),json_array(json_array(1,2)),json_array(1,null,'3','[4,5]','{"six":7.7}'),json_array(1,null,'3',json('[4,5]')); json_...
问SQLite json_array_lengthEN1、SQLite简介 SQLite第一个Alpha版本诞生于2000年5月. 至今已经有4个年...
>>UPDATE users SET URLs=JSON_GROUP_ARRAY((SELECT value FROM >>JSON_EACH(JSON_SET(URLs,'$['||JSON_ARRAY_LENGTH(URLs)||']',' >>http://foobar.com')) GROUP BY value)) WHERE UserId=1; > >That is a correct error message. > >JSON_GROUP_ARRAY is an aggregate function applicable to...
UPDATE users SET URLs=JSON_GROUP_ARRAY((SELECT value FROM JSON_EACH(JSON_SET(URLs,'$['||JSON_ARRAY_LENGTH(URLs)||']','http://foobar.com')) GROUP BY value)) WHERE UserId=1; However, an additional INNER SELECT in the UPDATE will result in the expected behavior: UPDATE users SET URL...
为了全面测试SQLite支持的SQL语句,需要设计一个包含多种类型的表结构,并编写各种SQL语句来测试这些功能。目前按照以下分类进行测试: 数据定义语言(DDL) 数据操作语言(DML) 数据控制语言(DCL) 事务控制语言(TCL) 查询语言(QL) 1.表结构设计 我们将创建一个简单的数据库,包含三个表:users、products和orders,以及一个...
/// assert_eq!(json!(0), result); /// We also want a test here that checks what happens if you pass a SQLNULLvalue to the function. So something like let result = diesel::select(json_array_length::<Nullable<Json, _>>(None::<serde_json::Value>()) ...
Added the json_group_array() and json_group_object() SQL functions in the json extension. Added the SQLITE_LIKE_DOESNT_MATCH_BLOBS compile-time option. Many small performance optimizations. Portability enhancements: Work around a sign-extension bug in the optimizer of the HP C compiler on...
JSON functions are automatically typed and parsed. For example, the following: select id, object(name, startTime) as nest from events; will have the type: interface EventQuery { id: number; nest: { name: string, startTime: Date } } Nulls are automatically removed from all groupArray ...
To store it, either transform your array into a string with a separator as indicator (For example iterate over the array and crate a string where each array item is separated by | or ; ) or transform it into a json string and store that one. Alternatively you can introduce a new table...
json-nan-inf release version-3.41.2 version-3.41.1 version-3.41.0 version-3.40.1 major-release version-3.40.0 version-3.39.4 version-3.39.3 version-3.39.2 version-3.39.1 version-3.39.0 version-3.38.5 version-3.38.4 relese version-3.38.3 version-3.38.2 version-3.38.1 version-3.38.0 ve...