Sqlite查询不起作用

如何解决Sqlite查询不起作用

| 我正在尝试获取特定行类型的所有行详细信息。

Select * from MainTable where JOB1=@Paint

它不起作用。我尝试了更多选择，但没有成功。谁能告诉我Objective-C的正确格式是什么？ 完整的代码就像

if(sqlite3_open([databasePath UTF8String],&database) == sqlITE_OK) {
    //const char *sqlStatement = \"SELECT * FROM MainTable\"; ??it is working

    const char *sqlStatement = \"SELECT * FROM MainTable where JOB1=\'Paint\'\";//but not this one


    sqlite3_stmt *compiledStatement;
    NSLog(@\"query set\");

    if(sqlite3_prepare_v2(database,sqlStatement,-1,&compiledStatement,NULL) == sqlITE_OK) {

        while(sqlite3_step(compiledStatement) == sqlITE_ROW) {

            Nsstring *job = [Nsstring stringWithUTF8String:(char *)sqlite3_column_text(compiledStatement,0)];
            Nsstring *image = [Nsstring stringWithUTF8String:(char *)sqlite3_column_text(compiledStatement,1)];
            Nsstring *tools = [Nsstring stringWithUTF8String:(char *)sqlite3_column_text(compiledStatement,2)];
            Nsstring *materials = [Nsstring stringWithUTF8String:(char *)sqlite3_column_text(compiledStatement,3)];
            Nsstring *people = [Nsstring stringWithUTF8String:(char *)sqlite3_column_text(compiledStatement,4)];
            Nsstring *safety = [Nsstring stringWithUTF8String:(char *)sqlite3_column_text(compiledStatement,5)];
            NSLog(@\"%@\",job);
            NSLog(@\"image %@\",image);
            NSLog(@\"tools %@\",tools);
            NSLog(@\"materials %@\",materials);
            NSLog(@\"people %@\",people);
            NSLog(@\"safety %@\",safety);

    

解决方法

您可以使用firefox插件SQLite管理器触发SQLite数据库查询 https://addons.mozilla.org/zh-CN/firefox/addon/sqlite-manager/ 您可以在程序中编写相同的查询。如果仍然没有运行，请发布您的代码段。