sqliteconstraintexception: unique constraint failed错误是SQLite数据库操作中的一个常见问题,以下是对该问题的详细解答: 1. 错误信息含义 sqliteconstraintexception: unique constraint failed错误表明在尝试向SQLite数据库中插入或更新数据时,违反了唯一性约束(UNIQUE constr
#defineSQLITE_RANGE25/* 传递给sqlite3_bind()的第二个参数超出范围 | 2nd parameter to sqlite3_bind out of range */ #defineSQLITE_NOTADB26/* 被打开的文件不是一个数据库文件 | File opened that is not a database file */ #defineSQLITE_ROW100/* sqlite3_step() 已经产生一个行结果 | sqlite...
当在Android开发中使用SQLite数据库时,有时会遇到"UNIQUE constraint failed"错误。该错误表示向数据库中插入或更新记录时,存在唯一性约束冲突。解决这个问题需要以下几个步骤: 步骤1: 确定导致错误的表和字段 首先,我们需要确定出现冲突的表和字段。在这个错误消息中,表名为"goods",字段名为"goodsid"。我们需要查看...
解决"android.database.sqlite.SQLiteConstraintException: UNIQUE constraint failed:" 的方法 理解问题 在解决问题之前,我们首先要理解android.database.sqlite.SQLiteConstraintException: UNIQUE constraint failed:这个异常的含义。这个异常意味着我们试图向数据库中插入一个已经存在的值,违反了唯一约束。我们需要找到引发这个...
SQLite保存报错sqlite.SQLiteConstraintException: UNIQUE constraint failed: ··· code 1555 往数据库里保存数据的时候报错,用的afinal框架,明明在save操作之前执行了一遍deleteAll操作,还是报错。 百度了一下说报这种错有两种情况:一是定义的字段为not null ,插入时对应的字段为null;二是定义的字段为主键,插入时在...
Description Hi, I am using a Ubuntu server and had installed the matrix-synapse-py3. The update to version 1.86.0 appeared Today and I updated it as normal (via apt). After the update the server was not getting back. I've tried to rollba...
I keep getting android.database.sqlite.SQLiteConstraintException: UNIQUE constraint failed when subscriptions are received. I suspect it might be because of two threads writing to the DB because of either or both of: Duplicating subscrip...
The sqlite db persists when you exit the app, so each time you start the app it will try to do the insert. (I gess it worked at first launch and you got the error the second time). As you useCREATE TABLE IF NOT EXISTSthe app does not fail on table creation but on the first in...
Sqlite3 ImportError: DLL load failed 2019-12-15 08:54 −在pycharm里面应用了anaconda下面的python模块sqlite3,出现以下错误, 根据错误提示,这是因为在该路径下,DLLs文件夹里没有sqlite3.dll文件和sqlite3.def文件,这个可以对比另外的python路径下的DLLs文件夹,里面如果有,则复制过来即可,如果都没有,... ...
下列代码第2次执行时,插入记录提示:IntegrityError: UNIQUE constraint failed: table_juzicode._id #juzicode.com/vx:桔子code importsqlite3 #检查表是否存在,存在返回True defcheck_table_exsist(cursor,table_name): sql ='''SELECT tbl_name FROM sqlite_master WHERE type = 'table' ''' ...