请教一下这是什么数据库

[BearTher]

用 TXT 打开之后内容如下

[{"dchapterchange":"2020-08-01 16:00:35","dsubjectchange":"2020-12-22 08:59:30","doutlinechange":null,"dchapterdelete":"2020-08-01 15:46:56","dsubjectdelete":"2020-08-01 15:42:09","doutlinedelete":null,"dvediochange":null,"dvediodelete":null}]

[{"icourseid":1,"cchaptercode":"9904032107","itype":0,"cchaptername":"第一章 会计概述","bendgrade":false,"igrade":1,"cmemo":"","ichapterid":2,"ballowtest":true,"bstopflag":false,"dchangedate":"2019-01-23 11:24:06","icount":194,"iexamtime":0,"cdcname":"","ifromid":0,"ifromid2":0,"ifromid_lxb":0,"itestcount":0},{"icourseid":1,"cchaptercode":"990403210711","itype":0,"cchaptername":"第一节 会计概念、职能和目标","bendgrade":true,"igrade":2,"cmemo":"","ichapterid":3,"ballowtest":true,"bstopflag":false,"dchangedate":"2019-01-23 11:24:06","icount":16,"iexamtime":0,"cdcname":"","ifromid":0,"ifromid2":0,"ifromid_lxb":0,"itestcount":0},

[tgich]

mysql，存得 json 格式
猜的