@nguyentrunghieutcu This case you have to define SQLite table data structure according to json data field.
Here is demo code of SQLite Query structure in ionic,
First, you create table according to your required field like this,
this.database.executeSql('CREATE TABLE IF NOT EXISTS developer(id INTEGER PRIMARY KEY AUTOINCREMENT,name TEXT,skill TEXT,yearsOfExperience INTEGER)', {})
.then(res => console.log('table Created Successfully'))
.catch(e => console.log('table create err',e));
Now, you insert your json data in table like this,
this.database.executeSql("INSERT INTO developer(name, skill, yearsOfExperience) VALUES ('Simon', 'Ionic', '4')",{});