(); while (reader.Read()) { Actor actor = new Actor { ActorId = Convert.ToInt32(reader["actor_id"]), FirstName = reader["first_name"].ToString(), LastName = reader["last_name"].ToString(), LastUpdate = Convert.T
/// public void EnableWriteAheadLogging() { ExecuteScalar<string>("PRAGMA journal_mode=WAL"); } /// /// Convert an input string to a quoted SQL string that can be safely used in queries. /// /// <returns>The quoted string.</returns> /// The unsafe string to quote. private ...
at System.Text.Json.ThrowHelper.ThrowFormatException(DataType dataType) at System.Text.Json.Utf8JsonReader.GetDateTime() at System.Text.Json.Serialization.Converters.DateTimeConverter.Read(Utf8JsonReader& reader, Type typeToConvert, JsonSerializerOptions options) 异常原因: System.Text.Json 时间是认...
rsa加密公钥convertKey异常:401 invalid param 通用密钥库系统中,使用AES GCM算法进行操作,AAD可以为空吗 HUKS解密时,若明文包含中文字符,则解密后明文与原明文不一致 如何获取HarmonyOS签名证书的公钥信息 如何使用用户自定义的pin码(6到16位)进行密钥解锁 huks Native接口编译报错问题 如何保存私钥等重要数据...
SQLiteCommand cmd = new SQLiteCommand("select PlateNumber from PlateInfo where PlateNumber like '%" + str + "%'"); Encoding coding = SQLiteConvert.Default; cmd.Connection = conn; conn.Open(); object obj = cmd.ExecuteScalar(); conn.Close(); ...
Read(Utf8JsonReader& reader, Type typeToConvert, JsonSerializerOptions options) 异常原因: 代码语言:javascript 代码运行次数:0 运行 AI代码解释 System.Text.Json 时间是认标准的. yyyy-MM-ddTHH:mm:ss 中间得有个T 解决方案: 注释掉服务端对时间日期类型默认格式化处理! DotNetGuide技术社区交流群 DotNet...
using System; using System.Data; using System.Text.RegularExpressions; using System.Xml; using System.IO; using System.Collections; using System.Data.SQLite; namespace DBUtility.SQLite { /// /// SQLiteHelper is a utility class similar to SQLite数据库存储...
Note that numbers are stored as text, which initially seems a little unusual in a binary format, but given that one of the design goals of the format is to convert quickly between text and binary, this choice does make sense. In testing, I have been unable to generate “TextJ” or ...
对于数据库操作不建议使用SQLite,建议使用框架提供的RDB接口,@ohos.data.relationalStore基于SQLite组件提供了一套完整的对本地数据库进行管理的机制,对外提供了一系列的增、删、改、查等接口,也可以直接运行用户输入的SQL语句来满足复杂的场景需要。
We typically use theINTEGERto store UNIX time which is the number of seconds since1970-01-01 00:00:00 UTC. 不同于TEXT和REAL,我们可以用INTEGER字段来存储日期和时间值。我们通常用INTEGER来表示UNIX时间戳,也就是自1970-01-01 00:00:00 UTC以来的秒数。