Set Date Validation

I came across JDev tutorial and found out that there's a validation function provided by JDev for the entity attribute.
Currently, i want to set a date validation for a column, i.e, ResolutionDate. The ResolutionDate input by user must be greater than the date a task is issued (IssueDate, another column which is generated by SysDate by trigger when a record is inserted). If a date is lesser than the IssueDate, then an error message will be prompted to the user.
I have tried to implement it by using Validate function under Entity Attirbute|Edit|Validation. However, there are three "Compare With" options : Literal Value, Query Result, View Object Attribute, and i don't what values to insert for any of the three.
Therefore, can anyone or JDev Team tell me how should i implement my date validation? If i were to use the Validation function under the "Edit Entity Attribute", what are the steps to do it?
T.I.A,
Sin Leng

Similar Messages

Data Validation in XML Spreadsheet 2003

Hi,
try this:
1) create new Excel worksheet
2) select A1:A10
3) set Data Validation to List, on Sheet2!A1:A10
4) save the file as XML Worksheet 2003
5) reopen the file
6) data validation does not work anymore
is this a bug?

Hi
You don't say what version of Excel you are using. However I can confirm that the feature does fail when following your method in 2010.
The file type you are using does not support "Data Consolidation References" (see help in propmt when saving file). This includes linking between sheets. You'll notice your data validation source becomes =sheet2!#REF.
If the list was on the same sheet then the validation would work.
Hope this helps
G North MCT

How can I set an validity date for a given vendor?

Hello,
we are currently trying to set a "validity date" for vendors.
Basically, our vendors need to be audited, and are "accepted" for a period of time, beyond which we'd need to re-audit them.
What we'd like the system to do is block use of the vendor if this date was exceeded.
Anyone has an idea on the way to achieve this?
PS: We know that there is a way to do this at the material level, we instead wish to manage it centrally for the vendor
Tx

Hello Nisha,
before doing business with a new vendor for services, our QA group needs to go thru a serie of verifications. We check various things such as insurance, certification,...
Once "approved", the vendor can be utilised by the plant for a certain period of time, after which a "re-audit" is necessary.
What I'd like to implement is a field where the QA group would enter this date, after which the vendor would be automatically blocked for usage.
This would then trigger the "re-audit" followed by the release from QA (who'd re-modify the date with the new one), and so on.
The vendor is not necessarily used for supply chain. Sometimes, it could be for services , maintenance, or other.
Tx for the ideas.

How to set the Valid-to-date (datub) of a BOM item

Is there a way I can set the "Valid-to-date" of a BOM item?
According to SAP documentation...
Quote
"If you change a BOM using a change number, the system determines the valid-to date dynamically."
Unquote
I want to "expire" a BOM item. Meaning I want to set the valid-to-date to a date in the past.
Is this possible at all?
Thanks for any input.
Fred

Ferry,
Thanks for you reply.
I do not see a field for the "Valid-to" date in the function module - CS_BOM_EXPL_MAT_V2. There is one for the "Valid-From" date called DATUV. But I would like to change the "Valid-from" date of the BOM item.
Or is there another way to set the BOM item's valid-to date using this function module which I am missing?
Fred

Can start date be set before valid for date for an equipment?

Can start date be set before valid for date for an equipment?

Hello,
Generally when a asset/equipment is purchased that is the valid from date and when commissioning done and it becomes operational then that date is start up date. So logically start up date should not before valid from date, it could be same.
Can you elaborate why you want start up date before valid from date ?
Thanks
Naveen

Marketing Attribute Date Validity

In table CAWN there is a 'value from' and a 'value to' field on this table.
However when we create new marketing attribute and it's description there appears to be no way of setting a valid to/from date for it.
We are using CRM 4.0.Can anyone tell me how this is possible, or even if it is possible in CRM4.0,
Many Thanks
David

Hi,
Sorry to say this, but even in CRM 5.0 it is not standard.
I am not aware of any BAdI which does this out of box. I think you need to build custom functionality, because these attributes are used in various functional areas and you need to take care of this by your own

Do not forget to reward if it helps,
Regards,
Paul Kondaveeti

List data validation failed when creating a new list item but does not fail when editing an existing item

Dear SharePoint Experts,
Please help.
Why does my simple formula work in Excel but not-work in SharePoint?
Why does this formula...
=IF([Request Type]="Review",(IF(ISBLANK([Request Date]),FALSE,TRUE)),TRUE)
...work in Excel but fail when I try to use it in SharePoint?
The intent of this formula is the following...
If the field "Request Type" has the value "Review" and the field "Request Data" is blank then show FALSE, otherwise show TRUE.
SharePoint saves the formula, but when a list item is saved where the formula is implemented, (under List Settings, List Validation), SharePoint does not, say anything other than that the formula failed.
Note that the "list data validation failed" error only happens when I am creating a new item-- the formula above works just fine when one is trying to Save on the edit form.
Can you help?
Thanks.
-- Mark Kamoski

Dear Jason,
I appreciate your efforts.
However, it seems to me that this statement of yours is not correct...
"If it meet the validation formula, then you can new or edit the item, otherwise, it will throw the 'list data validation failed' error, it is by design".
I believe this is NOT the answer for the following reasons.
When I create a new item and click Save, the validation error is "list data validation failed".
When I edit an existing item and click Save, the validation error is "my custom error message" and this is, I believe, the way it needs to work each time.
I think, at the core, the error my formula does not handle some condition of null or blank or other default value.
I tried a forumla that casts the date back to a string, and then checked the string for a default value, but that did not work.
I tried looking up the Correlation ID in the ULS when "list data validation failed" occurs, but that gave no useful information because, even though logging was set to Verbose, the stack trace in the error log was truncated and did not given any
good details.
However, it seems to me that SharePoint 2013 is not well-suited for complex validation rules, because...
SharePoint 2013 list-level validation (NOT column-level validation) allows only 1 input for all the multi-field validation formulas in a given list-- so, if I had more than 1 multi-field validation rule to implement on a given list, it would need to be packed
into that single-line-of-code forumla style, like Excel does. That is not practice to write, debug, or maintain.
SharePoint 2013 list-level validation only allows 1 block of text for all such multi-field validation rules. So that will not work because I would have something like "Validation failed for one or more of the following reasons-- withdrawal cannot exceed
available balance, date-of-birth cannot be after date-of-death,... etc". That will not work for me.
The real and awesome solution would simply be enhancing SP 2013 so that column-level validation forumlas are able to reference other columns.
But, for now, my workaround solution is to use JavaScript and jQuery, hook the onclick handler on the Save button, and that works good. The only problem, is that the jQuery validation rules run before any of the column-level rules created with OOTB
SP 2013. So, in some cases, there is an extra click for the enduser.
Thanks,
Mark Kamoski
-- Mark Kamoski

How to do a date validation with leap years

I'm doing a date validation program in my Java class, and well it's pretty hard (for me that is). I have to be able to type in a date, have it say whether it's a leap year or not, and print out the number of days in the month. It seems pretty straight forward, but I get confused on trying to do the 'if else' statements and even the simplest things like getting the day prompting to work. >< The years I'm doing only goes through 1000 to 1999, so that's why those numbers are there. The program isn't complete, so if anyone could help show me what I'm doing wrong in the areas I'm working on then I'd appreciate it...and I'm still kind of in the basics of Java so if you do hint me with some code then I'd appreciate it if it was stuff that's not too advanced so yea.
// Dates.java
// Determine whether a 2nd-millenium date entered by the user
// is valid
import java.util.Scanner;
public class Dates
public static void main(String[] args)
int month, day, year; //date read in from user
int daysInMonth; //number of days in month read in
boolean monthValid, yearValid, dayValid; //true if input from user is valid
boolean leapYear; //true if user's year is a leap year
Scanner scan = new Scanner(System.in);
//Get integer month, day, and year from user
System.out.print("Type in the month: " );
 month = scan.nextInt();
System.out.print("Type in the day: " );
 day = scan.nextInt();
System.out.print("Type in the year: " );
 year = scan.nextInt();
//Check to see if month is valid
if (month >= 1)
month = month;
else
if (month <= 12)
month = month;
else;
//Check to see if year is valid
if (year >= 1000)
year = year;
else
if (year <= 1999)
year = year;
else;
//Determine whether it's a leap year
//Determine number of days in month
if (year == 1 || 3 || 5 || 7 || 8 || 10 || 12)
 System.out.println (Number of days in month is 31);
 else (year == 4 || 6 || 9 || 11)
 System.out.println (Number of days in month is 30);
//User number of days in month to check to see if day is valid
//Determine whether date is valid and print appropriate message
// Dates.java
// Determine whether a 2nd-millenium date entered by the user
// is valid
import java.util.Scanner;
public class Dates
public static void main(String[] args)
int month, day, year; //date read in from user
int daysInMonth; //number of days in month read in
boolean monthValid, yearValid, dayValid; //true if input from user is valid
boolean leapYear; //true if user's year is a leap year
Scanner scan = new Scanner(System.in);
//Get integer month, day, and year from user
System.out.print("Type in the month: " );
 month = scan.nextInt();
System.out.print("Type in the day: " );
 day = scan.nextInt();
System.out.print("Type in the year: " );
 year = scan.nextInt();
//Check to see if month is valid
if (month >= 1)
month = month;
else
if (month <= 12)
month = month;
else;
//Check to see if year is valid
if (year >= 1000)
year = year;
else
if (year <= 1999)
year = year;
else;
//Determine whether it's a leap year
//Determine number of days in month
if (year == 1 || 3 || 5 || 7 || 8 || 10 || 12)
 System.out.println (Number of days in month is 31);
 else (year == 4 || 6 || 9 || 11)
 System.out.println (Number of days in month is 30);
//User number of days in month to check to see if day is valid
//Determine whether date is valid and print appropriate message
}

Here are some helpfull hints for you:
1. Your code is really hard to read, there are two main reasons for this. First, your indentation sucks. Second, you seem to be fascinated with saving two (ok four if you count the shift key) keypresses to avoid using { and }.
2. Not using the brackets (you know { and } which you like to avoid) also is causing your code to do some stuff you don't realize or want to happen, or at least it would be if your code compiled.
3. If statements require arguements, "year == 1" is an arguement, "3" is not an arguement. Each operator like the or operator ("||") is essentially a new if and requires a complete arguement. So the following code peice:
if (year == 1 || 3 || 5 || 7 || 8 || 10 || 12)Literally translates to if year equals 1 or if 3 or if 5 or if 7 or if 8 or if 10 or if 12. Doesn't make much sense in english, and it doesn't make much sense in Java either.
4. I am pretty sure "year" is not the variable you want in the code snippet above (the one used in hint 3), especially considering years 1, 3, 5, 7, 8, 10, and 12 are not between 1000 and 1999. You need to be really carefull not make these kind of mistakes when coding, because they are by far the hardest to track down and fix later since they don't really throw up any flags or anything at compile or run time. Take your time and think thuroughly about each line of code while coding it, it will save you tons of time in the long run.
5. What exactly do you expect statements like "month = month;" to do? That translates as make month equal to month. Do you go to the bank and say " I have exactly $3.56 in my pocket, so I would like to deposite all $3.56 and then withdraw $3.56 and put it back in my pocket"? How do you think the teller would look at you? Teller would probably do it, but the teller would feel like he/she wasted time with you and that you are not really right in the head. Java feels the same way when you make it do the same thing, and you love to do it.
6. Code like the following is all wrong, and for more reasons than pointed out in hint 5.
if (month >= 1)
month = month;
else
if (month <= 12)
month = month;
else;Let's say someone put 13 in as the month. It passes the first check because 13 is greater than or equal to 1. so month which is 13, now gets set to 13 (gee that was effective). Now we hit the else and things get confusing because you didn't use brackets or proper indentation (hint 1) so we don't know what your real intent was. Did you mean else do nothing, and the next if statement is then executed, or did you mean to just run the next if statement if the else condition was met? Fortunatly it doesn't matter here because the next if statement is failed anyways since 13 is not less than or equal to 12.
So, we leave this code with month ebing 13, wait when did we add a 13th month to the calendar? Are you using the Jewish calendar? Could be, except even if I put 1234567 as the month your code would except it as valid, and I know no calendar with that many months. Try writing this in english first and translating it to jave, like i would probably say "if the month is greater than or equal to 1 and less than or equal to 12 then the month is valid." Course now what do you do if it is invalid? Hmm, maybe I would actually say "while the month is less than 1 or greater than 12 ask the user for the month" until they get it right.
There are a few other problems, but most of them are probably things you haven't learned yet, and they are not show stoppers so we will let them fly. You already have a lot of work to do to make this better. But I do have one more really really big usefull hint for you:
Never, ever, under any circumstances, should you ever ask in any way or even hint at asking for someone else to provide code solutions to your problems. So "so if you do hint me with some code then I'd appreciate it if it was stuff that's not too advanced " was a very bad thing to do, but fortunatly for you you followed it with proof you were trying to write the code yourself. Had the code you provided not been so full of problems it was obvious a beginner wrote it, you would probably have gotten much less cordial responses. I would seriously consider avoiding any implication of wanting code, at least until you become a regular poster here and people know you are not just looking to get your homework done for you.
Hope some of this helps.
JSG

Losing Data Validation Messages when writing back to context

( The base for this question is the ALV grid in section 2 of this [TimeSheetMockUp|http://www.duke.edu/~michaelm/TimeCard/AnnotatedTimeSheet.jpg] )
Users enter values in the white cells which represent the hours recorded on a given day for a certain type of time.
Lets say we have a z-object that supplies us with the overall grid structure, including the headers and (the shaded) summarization cells. The web dynpro ALV had been set to allow input only on the raw data cells. They are set to 4 places with one decimal.
As the app was being developed, when we entered invalid data in a cell, such as 123456, or 1.2345 or u2018qu2019, a nice message was displayed that told the us about the issue. This was free u2013 I guess the phase model does that for us, and we liked it.
Well, down the road a pieceu2026 we needed to add a method to recalc all the summary values from the raw inputs.
METHOD wddoafteraction .
* wizard: navigate to and get the rows data *
DATA lo_nd_nd_rows TYPE REF TO if_wd_context_node.
DATA lt_nd_rows TYPE wd_this->elements_nd_rows.
* navigate from <CONTEXT> to <ND_ROWS> via lead selection
lo_nd_nd_rows = wd_context->get_child_node( name = wd_this->wdctx_nd_rows ).
lo_nd_nd_rows->get_static_attributes_table( IMPORTING table = lt_nd_rows ).
* do the math *
DATA lt_updated_rows TYPE wd_this->elements_nd_rows.
CALL METHOD wd_assist->o_wc->recalc_update_and_return_wrows
 EXPORTING
 im_rows = lt_nd_rows
 IMPORTING
 ex_rows = lt_updated_rows.
* repopulate the rows *
lo_nd_nd_rows->bind_table( new_items = lt_updated_rows set_initial_elements = abap_true ).
Now, weu2019re losing all the nice data validation messages u2013 they do not display (the offending entries are just cleared) !!!
After some investigation, it seems that the bind_table call is where they get lost (without that call, they appear) .
Iu2019ve tried placing this code in a number of hook methods, but the same thing occurs. It is currently in the viewu2019s afteraction hook.
So, u2026 I have two questions.
u2022 How do I get my nice messages back. ?
u2022 Where is the right place to update my context from
( Btw, downstream, our recalc outines will also want to throw messages that we will want processed after we get through the initial validation )
Thanksu2026
u2026Mike

Fixed with SAP Note 1410122 - WD ABAP ALV: Messages are not displayed

Date Validation - a Nightmare for ME!

Hi, I searched the forum and came up with some code that works for me partially. I am still having problems with getting the end result that is needed.
I need to do a date validation where the begin date is less than end date. Below is the syntax..It works but when I put in the correct end date i still get the error message athough the date is correct. Also if I set the focus back to the field and correct the date it still set focus back... I'm sure it is something simple that I am missing
----- form1.subformpage1.empnsubform.DateTimeField2::exit - (JavaScript, client) -------------------
if (DateTimeField2.formattedValue>=DateTimeField1.formattedValue);
xfa.host.messageBox("Incorrect Date range");
What am I missing? Yes I still struggle with writing scripts!!!!
thanks

I have a similar thing on one of my forms, the fields are "Date Submitted" and "Date Needed" and I need to validate that the Date Submitted date occurs before the Date Needed date. If it does not, it prompts a response dialog box and asks for a new DateNeed to be entered. Here is the code I used: (I'm by no means an expert at code) //This just sets the values of the date/time fields to variables, and then checks for a null value. If null, it changes the rawValue to an empty string for inserting into database. If not null, it leaves the existing rawValue unchanged. Unless you're writing info to a database, you probably wouldn't need this. var DateSubmit = form1.MainForm.Info.DateSubmitted.rawValue == null ? "" : form1.MainForm.Info.DateSubmitted.rawValue; var DateNeed = form1.MainForm.Info.DateNeeded.rawValue == null ? "" : form1.MainForm.Info.DateNeeded.rawValue; if (DateNeed<DateSubmit) { var dateResponse = xfa.host.response("The Date Needed date must be later than the Date Submitted date.\nPlease enter new date below: (MM/DD/YYYY format)", "Date Needed Error"); var myDate = new Date(dateResponse); var myFormattedDate = util.printd("dd mmm yyyy", myDate); form1.MainForm.Info.DateNeeded.formattedValue = myFormattedDate; } BTW, I have this as code on a submit button that does all of my validations and then writes a new record to a database. But I think you could also do this on the exit event of the second date/time field if needed. The variable declarations at the top would be slightly different. Lynne

Trouble with a data validating loop.

So I tried to make a data validation loop to make sure no single number in an array are the same.
At first I thought it was working fine, but after the sixth test, I noticed I had two of the number "5".
Based on looking at my code, it seems like it could work, but I could not be seeing something significant.
Anyone have any advice or suggestions?
Oh and also, MAX_PICK is a static final int set to 47
picks[0] = randomNumbers.nextInt(MAX_PICK);
picks[1] = randomNumbers.nextInt(MAX_PICK);
picks[2] = randomNumbers.nextInt(MAX_PICK);
picks[3] = randomNumbers.nextInt(MAX_PICK);
picks[4] = randomNumbers.nextInt(MAX_PICK);
while(!valid)
 for(int i=0;i<=4;i++)
 if (picks[i] == picks[0] ||
 picks[i] == picks[1] ||
 picks[i] == picks[2] ||
 picks[i] == picks[3] ||
 picks[i] == picks[4])
 picks[i] = randomNumbers.nextInt(MAX_PICK);
 valid = true;
}One thing I just noticed is also, lets say i = 4 and when it compares picks[i] to picks[4] , it will go in the statement anyway, causing it to change picks[4] to another number which could by chance be the same as picks[3]. Is there a way around this? I was thinking about maybe a while loop with the condition the if statement has, but then the loop would run forever. Any insight?
Much Appreciated.

* Created on 2007年10月10日
* To change the template for this generated file go to
* Window>Preferences>Java>Code Generation>Code and Comments
import java.util.*;
public class MyRan {
 static int picks[];
public static void main(String args[]) {
 int MAX_NUM = 5;
 picks = new int[5];
 Random generator2 = new Random( System.currentTimeMillis() );
 // picks[j] = generator2.nextInt(MAX_PICK+1);
 System.out.println("======");
 for(int i=0;i<=4;i++)
 picks[i] = generator2.nextInt(MAX_NUM)+1;
 while(!check(picks))
 for (int i=0; i<5; i++)
 for (int k=0; k<5; k++)
 if (i!=k)
 boolean genSuccess = false;
 if (picks==picks[k])
 while (!genSuccess)
 picks[k] = generator2.nextInt(MAX_NUM)+1;
 if (picks[i]!=picks[k])
 genSuccess = true;
 for (int i=0; i<5; i++) {
 System.out.println(picks[i]);
public static boolean check(int input[])
 int duplicateCount = 0;
 for (int i=0; i<input.length; i++)
 for (int k=0; k<input.length; k++)
 if (i!=k)
 if (input[i]==input[k])
 duplicateCount++;
 if (duplicateCount>0)
 return false;
 else
 return true;

Is there a equivalent of "Data Validation" function in Numbers?

Hi, I think this question have been asked before in 2009. But there's no conclusive answer. I just imported a medium complexity xlsx sheet into Numbers, "data validation have been removed data retained" message appeared. Is there a equivalent function in Numbers? Or can we construct one? The reason this is important is when using the Macs we are ok and less likely to "fat finger" the data entry. However with a iPad and especially the iPhone, we are more likely to "fat finger" the data entry and therefore a scroll wheel or drop-down list function will help.
If anyone has a helpful answer that will be great!
Ken
===

"Data Validation" as such is not supported in Numbers.
Numbers '09 does support two means of restricting data choices to a pre-determined list of choices:
Pop-up menu is a cell format that provides a pop-up list of choices from which a value may be selected. Value not on the menu cannot be inserted (except by changing the cell's format, then entering the values manually).
Slider and Stepper are two more cell formats. Both provide a mechanism for inserting numeric values, with the minimum, maximum and increment values set in the cell format inspector.
The numeric values set by the Slider or Stepper can be used, in a separate cell, to lookup a text value from a table of possible values.
The Numbers for iOS feature set is a subset of the one available in Numbers '09. I don't know if Pop-up menus, Sliders or Steppers are supported in the iOS version,
Regards,
Barry

Viewset - active view and data validation problem

Hey there,
I've a problem while using a viewset (1 col, 2 rows) and the data-validation in the wdDoBeforeAction() method.
My application works basically like this:
The first view is displayed with 2 mandatory input fields. Upon the evaluation result of the entered data in these fields, a corresponding second view will be displayed. The input fields in the first view are set to read only and a button named "Change" appears. This button triggers an action which fires and outbound-plug to an empty view, so that the second view disappears and resets the "read only" properties of the input fields in the first view, so that the user can enter new data.
The problem is, that the second view contains input fields itself, which are validated in the wdDoBeforeAction() method of this view. The navigation is cancelled if an error occurs. Well, this is fine if i want to submit (pressing the button "Approve" in the second view) this data and proceed, but if i want to go back to the first view (by hitting the "Change" button), i want to discard all information entered in the second view and i dont want this data to be validated. It's quite annoying if u just want to correct the first views data but have to enter correct values for the second view in order to get through the second views checks..
I hope that's clear enough, otherwise i will upload a screenshot to clarify.
Thx in advance
Regards
Pascal

Hi Pascal,
although I wont prefer to do so for reasons of readability, you could use wdDoProcessbeforeAction to control your view-flow.
Take a look at the example, I have two Buttons with two actions, one is set on "Validate", the other is not (guess which on is the validating ).
You can get the action triggered inside the doBefore ... method and determine whether or not the checkbox is set.
So put your code to validate the input in the i(isValidting) branch and your problems are solved.
Keep in Mind: I would delegate the Validation from the view to the controller, handle the validation myself with custom coding and then check in the view controller if any errors occured.
hope that helped,
Jan
//@@end
public void wdDoBeforeAction(com.sap.tc.webdynpro.progmodel.api.IWDBeforeAction validation)
    //@@begin wdDoBeforeAction
       IWDAction currentAction = validation.getCurrentAction();
       if (currentAction == null) return;
       String action = currentAction.getText();
       boolean isValidating = currentAction.isValidating();
       if (isValidating) {
            wdComponentAPI.getMessageManager().reportException(action);
       } else {
            wdComponentAPI.getMessageManager().reportSuccess(action);
    //@@end
Edited by: Jan Galinski (Holisticon) on Sep 8, 2009 3:15 PM

Date validation in ABAP Webdynpro.

Hi,
I have created a field for date in my table and binded it with a field of a data dictionary table . The problem is when the user enters the year , whether one , two or three digits it automatically sets the remaining digits and the year is a four digit value . This happens even before reading the value of the date field attribute , so I m not able to find a way to validate that user enters the four digits of the year accurately.

Hi,
Pls check out this thread on date validation in detail-
How can I check these data whether valid ?
Validation code
date format in application
Regards
Lekha

Creating a trigger to enforce data validation

I would like to create a trigger to do some basic data validation. For example, to join an honors society a student must have a gpa between 3.7 and 4.0. I want this to fire before an insert on the table NatlHonSoc, and the field name is gpa.
Thanks!

user8775995 wrote:
I'm trying to learn how to use triggers and just made this example up. It always helps to state your real intent from the beginning.
All I have is the general syntax from a book <snip>"A" book? Which book? Just any old book?
There is no book better to start with than the official documentation.
Learning where to look things up in the documentation is time well spent investing in your career. To that end, you should drop everything else you are doing and do the following:
Go to tahiti.oracle.com. Drill down to your product and version.
Spend a few minutes just getting familiar with what is available here. Take special note of the "books" and "search" tabs. Under the "books" tab you will find the complete documentation library.
Spend a few minutes just getting familiar with what kind of documentation is available there by simply browsing the titles under the "Books" tab.
Open the Reference Manual and spend a few minutes looking through the table of contents to get familiar with what kind of information is available there.
Do the same with the SQL Reference Manual.
Do the same with the Utilities manual.
You don't have to read the above in depth. They are reference manuals. Just get familiar with what is there to be referenced. Ninety percent of the questions asked on this forum can be answered in less than 5 minutes by simply searching one of the above manuals.
As pointed out by Centinul, for your purpose, you should include the Application Developer's Guide as part of your "must reference" books.
Then set yourself a plan to dig deeper.
- Read a chapter a day from the Concepts Manual.
- Look in your alert log and find all the non-default initialization parms listed at instance startup. Then read up on each one of them in the Reference Manual.
- Take a look at your listener.ora, tnsnames.ora, and sqlnet.ora files. Go to the Network Administrators manual and read up on everything you see in those files.
- When you have finished reading the Concepts Manual, do it again.
Give a man a fish and he eats for a day. Teach a man to fish and he eats for a lifetime.

Set Date Validation

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