SQLite.SQLiteException: 'near "s": syntax error' when updating field in sqlite - sqlite

Question

I'm currently working on UWP project and I use sqlite database.In this project I want to update field in sqlite table(classroomteam).When I entered value with apostrophe(') It gives error saying "SQLite.SQLiteException: 'near "s": syntax error'"
This is the code that I used to save updated data to the table
public static async Task UpdateTeamName(ClassroomTeamItem classroomTeamItem)
{
IWAppUtils.PrintDebug("====Start ", CLASS_NAME, "UpdateTeamName()");
ClassroomTeam classroomTeam = new ClassroomTeam()
{
TeamName = classroomTeamItem.TeamName,
Id = classroomTeamItem.Id,
};
String teamName = classroomTeamItem.TeamName;
SQLiteAsyncConnection conn = new SQLiteAsyncConnection(IWSQLite.DATABASE_NAME);
//Task<int> a = conn.UpdateAsync(configInfo);
await conn.ExecuteAsync("UPDATE classroomteam SET TeamName = '" + classroomTeamItem.TeamName + "' WHERE Id = '" + classroomTeam.Id + "'");
await conn.CloseAsync();
IWAppUtils.PrintDebug("====End ", CLASS_NAME, "UpdateTeamName()");
}
I tried this to solve my issue and what I did is applying new String[] {classroomTeamItem.TeamName } in the query.Then I didn't get any error but the value is stored as System.String[] not the value I entered in sqlite table.The code I tried as follows.
public static async Task UpdateTeamName(ClassroomTeamItem classroomTeamItem)
{
IWAppUtils.PrintDebug("====Start ", CLASS_NAME, "UpdateTeamName()");
ClassroomTeam classroomTeam = new ClassroomTeam()
{
TeamName = classroomTeamItem.TeamName,
Id = classroomTeamItem.Id,
};
String teamName = classroomTeamItem.TeamName;
SQLiteAsyncConnection conn = new SQLiteAsyncConnection(IWSQLite.DATABASE_NAME);
//Task<int> a = conn.UpdateAsync(configInfo);
await conn.ExecuteAsync("UPDATE classroomteam SET TeamName = '" + new String[] { classroomTeam.TeamName } + "' WHERE Id = '" + classroomTeam.Id + "'");
await conn.CloseAsync();
IWAppUtils.PrintDebug("====End ", CLASS_NAME, "UpdateTeamName()");
}
I would appreciate if anyone can help me to resolve this issue.

Answer 1

The sql string about how to update field is:
string SQL_UPDATE = "UPDATE " + TABLE_NAME + " SET Value = ? WHERE Key = ?";
So you could try to change your update string to
await db.ExecuteAsync("UPDATE classroomteam SET TeamName = " + classroomTeamItem.TeamName + " WHERE Id = " + classroomTeam.Id);
Or you can query for the specific data is most straightforwardly done using the Table method and then update your field. For example:
private async void update(ClassroomTeamItem classroomTeamItem)
{
var query = db.Table<ClassroomTeam>().Where(s => s.Id==classroomTeam.Id);
var result = await query.ToListAsync();
foreach (var s in result)
{
s.TeamName = classroomTeamItem.TeamName;
await db.UpdateAsync(s);
}
}