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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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外媒评本轮科技泡沫：创业公司首当其冲 九成将消失 - 资讯 - 清泛网 - 专注...
...部门主管安德鲁·博伊德（Andrew Boyd）说：“一家企业是如何从获风投支持的创业公司走过来的，目前不再有一个明确的界限。我们只是一家上市公司。”博伊德还补充说，富达国际目前有一个135人组成的分析师团队，这个团队...
Flask-SQLalchemy update a row's information
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db.session.flush()
db.session.commit()
This will add the user into the MySQL database with data {"country":"Sri Lanka"}
Modifying data will be ignored. My code that didn't work is as follows.
user = User.query().filter(User.name=='Jon Dove')
data = user.data
data["province"] = "south"
user.dat...
Allow user to select camera or gallery for image
...geIntent() {
// Determine Uri of camera image to save.
final File root = new File(Environment.getExternalStorageDirectory() + File.separator + "MyDir" + File.separator);
root.mkdirs();
final String fname = Utils.getUniqueImageFilename();
final File sdImageMainDirectory = new Fil...
In JPA 2, using a CriteriaQuery, how to count results
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Mind you that the qb.count is done over the Root<MyEntity> of your query (Root<MyEntity> myEntity = cq.from(MyEntity.class)) and this is often already in your normal select code and when you forget you end up with a join to self.
– gke...
How to make a SIMPLE C++ Makefile
...nix, the executables don't have any extensions.
One thing to note is that root-config is a utility which provides the right compilation and linking flags; and the right libraries for building applications against root. That's just a detail related to the original audience for this document.
Make M...
Renaming columns in pandas
...rename(columns=lambda x: x.lstrip(), inplace=True)
– root-11
Oct 21 '13 at 22:05
2
Similar to @ro...
Default value in Doctrine
...nd to use the columnDefinition in the annotation, or somebody will use the mysql client or phpmyadmin and the values will be wrong...
– NDM
May 4 '15 at 14:09
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Linux command to print directory structure in the form of a tree
...nfs4.nametoid
| | |-- nfsd.export
| | `-- nfsd.fh
| `-- stat
|-- root -> /
`-- task
`-- 15589
|-- attr
|-- cwd -> /proc
|-- fd
| `-- 3 -> /proc/15589/task/15589/fd
|-- fdinfo
`-- root -> /
27 directories
sample taken from m...