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how to get last insert id after insert query in codeigniter active record
...n insert query (active record style) used to insert the form fields into a MySQL table. I want to get the last auto-incremented id for the insert operation as the return value of my query but I have some problems with it.
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Why historically do people use 255 not 256 for database field magnitudes?
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255 was the varchar limit in mySQL4 and earlier.
Also 255 chars + Null terminator = 256
Or 1 byte length descriptor gives a possible range 0-255 chars
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剖析程序的内存布局 - C/C++ - 清泛网 - 专注C/C++及内核技术
...拟地址空间的布局就讲这些吧。下一篇文章将讨论内核是如何跟踪这些内存区域的。我们会分析内存映射，看看文件的读写操作是如何与之关联的，以及内存使用概况的含义。
布局 内存 程序
京东618：算法让UV价值提升200%+，用智能卖场缩短购物路径 - 更多技术 - 清...
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CSDN：如果模型预测的结果为无货商品或下架商品，你们如何处理？
智能卖场团队：在推荐的结果中，如果出现无货或者下架的商品，我们将不会展示给用户。作为替代，我们将会给用户推荐它的相关或者相似的商品。这些相...
How do I create a PDO parameterized query with a LIKE statement?
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thanks. had similar issue with csharp + Mysql + ODBC using like it would not return any rows using "select * from table where column like '%?%';" but will if I do like you did "select * from table where column like ?;" and set the parameter string so: string frag =...
Hibernate throws org.hibernate.AnnotationException: No identifier specified for entity: com..domain.
...er since 2012). The only major database that does not support sequences is MySQL.
The problem with IDENTITY is that automatic Hibernate batch inserts are disabled for this strategy. For more details about this topic, check out this article.
The SEQUENCE strategy is the best choice unless you a...
PDO Prepared Inserts multiple rows in single query
I am currently using this type of SQL on MySQL to insert multiple rows of values in one single query:
22 Answers
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Floating View 扩展：悬浮视图扩展，将组件转换为悬浮窗口 · App Inventor 2 中文网
...多个组件吗？
Q: 悬浮窗可以拖动吗？
Q: 如何自定义悬浮窗样式？
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Floating View 扩展
Floating View 是一个免费的悬浮视图...
How to set HTTP header to UTF-8 using PHP which is valid in W3C validator?
... change a series of things.
Database (immediately after the connection):
mysql_query("SET NAMES utf8");
// Meta tag HTML (probably it's already set):
meta charset="utf-8"
header php (before any output of the HTML):
header('Content-Type: text/html; charset=utf-8')
table-rows-charset (for each row...
使用App Inventor 2 控制物联网设备/低功耗蓝牙设备(BLE) · App Inventor 2 中文网
...的服务和特征，而无需知道确切的 UUID 或有关服务和特征如何工作的详细信息。 所选择的服务和特征使得能够读取或写入特征数据值。 例如，通过电池电量服务和特性，可以监控所连接设备的电池电量。 由于 GATT 服务和特性的...