Question

我是iOS新手sqlite3，我试图更新设备表中的现有记录，如下所示我没有更新主键，虽然我正在更新基于主键的记录，其中deviceAppID是我的PK

这是我正在尝试的代码

      const char *updateStatement ="UPDATE  Device SET deviceGUID=?,testGUID=?,deviceName=?,device=?,deviceOsVersion=?,platform=?,createdDateTime=?,updatedDateTime=?,status=? WHERE deviceAppID=1";

      int success;

      if(sqlite3_prepare_v2(mDatabase, updateStatement, -1, &mStatement, NULL) == SQLITE_OK)
          {
sqlite3_bind_text(mStatement, 2, [device.deviceGUID UTF8String], -1, SQLITE_TRANSIENT);
sqlite3_bind_text(mStatement, 3, [device.testGUID UTF8String], -1, SQLITE_TRANSIENT);
sqlite3_bind_text(mStatement, 4, [device.deviceName UTF8String], -1, SQLITE_TRANSIENT);
sqlite3_bind_text(mStatement, 5, [device.device UTF8String], -1, SQLITE_TRANSIENT);
sqlite3_bind_text(mStatement, 6, [device.deviceOSVersion UTF8String], -1, SQLITE_TRANSIENT);
sqlite3_bind_text(mStatement, 7, [device.devicePlatform UTF8String], -1, SQLITE_TRANSIENT);
sqlite3_bind_text(mStatement, 8, [device.createdDateTime UTF8String], -1, SQLITE_TRANSIENT);
sqlite3_bind_text(mStatement, 9, [device.updatedDateTime UTF8String], -1, SQLITE_TRANSIENT);
 sqlite3_bind_int(mStatement, 10, device.status);

            success = sqlite3_step(mStatement);


            if (success == SQLITE_ERROR) {

                  NSAssert1(0, @"Error: failed to insert into the database with message '%s'.", sqlite3_errmsg(mDatabase));
            }
          }

      else {

            NSAssert1(0, @"Error: failed to prepare statement with message '%s'.", sqlite3_errmsg(mDatabase));
      }
      sqlite3_finalize(mStatement);

Answer 1

请阅读以下链接（索引不是表中的索引，它是STATEMENT中的索引）

read this - found it with google

无法在iOS中更新sqlite3数据库表

1 个答案: