'Javac' Is Non Recognized Equally An Internal Or External Command

'javac' is non recognized every bit an internal or external command, operable plan or batch file mistake comes when y'all endeavour to compile a Java origin file using javac ascendency e.g. javac Helloworld.java only your PATH is non laid properly. It agency that javac.exe executable file, which exists inwards bin directory of JDK installation folder is non added to PATH surroundings variable. You ask to add together JAVA_HOME/bin folder inwards your machine's PATH to solve this error. You cannot compile in addition to run Java plan until your add together Java into your system's PATH variable. Here is how this mistake looks similar inwards ascendency prompt of windows motorcar :

Steps to produce 'javac' is non recognized every bit an internal or external ascendency :

Let's encounter how to produce this occupation to compile in addition to run Java plan from ascendency occupation :

1) Open ascendency prompt inwards Windows past times clicking Start push in addition to and thus typing cmd on run window, every bit shown inwards next screenshot :

2) Type echo %PATH%,  it volition instantly demo y'all all the directories which are available inwards PATH surroundings variable. Now re-create this PATH output into your text editor e.g. Notepad or Word-pad in addition to search if it contains the JDK installation directory or JAVA_HOME. For example, if your JDK is installed on "c:\program files\java\jdk1.8.0", in addition to thus PATH should include "c:\program files\java\jdk1.8.0\bin". It's of import to include bin directory because all executable required to compile, run in addition to debug Java program are stored inwards bin directory.  Sometime y'all volition also encounter similar %JAVA_HOME%\bin , where JAVA_HOME is around other user defined surroundings which points to Java installation directory. 



3) If PATH doesn't incorporate bin directory of JDK, in addition to thus y'all tin add together them into PATH past times next command

set PATH = %PATH%;"c:\program files\java\jdk1.8.0\bin

This is also known every bit setting PATH inwards Java. Once PATH is laid y'all tin compile, run in addition to monitor Java programs past times using diverse tools which comes amongst JDK installation. If y'all are non rattling familiar amongst setting surroundings variable from ascendency prompt, y'all tin also purpose settings window every bit shown inwards this article.

4) Don't forget to unopen the electrical flow ascendency prompt in addition to opened upward a novel i earlier running the javac ascendency again.  Any alter inwards surroundings variable is alone available to novel cmd windows.


That's all nearly how to fix 'javac' is non recognized every bit an internal or external command, operable plan or batch file mistake inwards Windows. You mightiness larn similar mistake e.g. 'java' is non recognized every bit an internal or external command, operable plan or batch file, if y'all endeavour to run an already compiled Java plan in addition to PATH is non laid inwards your machine.

Further Learning
Complete Java Masterclass
Java Fundamentals: The Java Language
Java In-Depth: Become a Complete Java Engineer!

Sqlserverexception: The Index 58 Is Out Of Make - Jdbc

I was executing a stored physical care for against SQL SERVER 2008 database from Java program using CallableStatement, simply unfortunately, I was getting next fault "SQLServerException: The index 58 is out of range". Since I am passing a lot of parameters I idea that something is incorrect amongst a release of parameters I was passing to the stored proc. My stored physical care for had 58 INPUT parameters, every bit presently every bit I removed the 58th INPUT parameter the fault goes away, which confirmed my belief that SQL SERVER supports a maximum of 57 INPUT parameters inwards stored physical care for via JDBC. This  seems the actually meaning limitation, peculiarly for big tables in addition to I was thinking that It's to a greater extent than probable that 58 is non the actual bound in addition to I mightiness convey missed something.

My suspicion was correct fifty-fifty though the fault goes away every bit presently every bit I removed the 58th parameter, it was nix to exercise amongst SQL SERVER bound on stored proc parameters simply it was the release of placeholders I had defined entirely 57 placeholders simply I was setting information for 58th parameter using setString() method in addition to that was causing this exception.  How exercise I acquire to know that? Luckily I in 1 lawsuit again got the same fault simply this time, it was complaining well-nigh 35 beingness out-of-range i.e. com.microsoft.sqlserver.jdbc.SQLServerException: The index 35 is out of range. which confirmed my suspicion that I was missing something.

com.microsoft.sqlserver.jdbc.SQLServerException: The index 58 is out of range

You acquire the next fault land executing stored physical care for against SQL SERVER 2008 or whatever other version from Java program:



Caused by: com.microsoft.sqlserver.jdbc.SQLServerException: The index 58 is out of range.
at com.microsoft.sqlserver.jdbc.SQLServerException.makeFromDriverError(Unknown Source)
at com.microsoft.sqlserver.jdbc.SQLServerPreparedStatement.setterGetParam(Unknown Source)
at com.microsoft.sqlserver.jdbc.SQLServerPreparedStatement.setString(Unknown Source)
at com.microsoft.sqlserver.jdbc.SQLServerCallableStatement.setString(Unknown Source)
at org.apache.commons.dbcp.DelegatingCallableStatement.setString(DelegatingCallableStatement.java:219)
at org.apache.commons.dbcp.DelegatingCallableStatement.setString(DelegatingCallableStatement.java:219)

or

Caused by: com.microsoft.sqlserver.jdbc.SQLServerException: The index 35 is out of range.
at com.microsoft.sqlserver.jdbc.SQLServerException.makeFromDriverError(Unknown Source)
at com.microsoft.sqlserver.jdbc.SQLServerPreparedStatement.setterGetParam(Unknown Source)
at com.microsoft.sqlserver.jdbc.SQLServerPreparedStatement.setString(Unknown Source)
at com.microsoft.sqlserver.jdbc.SQLServerCallableStatement.setString(Unknown Source)

Reason: 
As I said, the actual argue was  not the SQL SERVER bound simply it was the release of placeholders. I had defined 34 placeholder simply setting information for the 35th column using setString(), setInt() method in addition to that's why JDBC complaining that index 35 is out of range. Remember, the first column inwards JDBC starts amongst index 1 in addition to non zero.


Java Example
This fault tin likewise come upward when you lot are using PreparedStatement or CallableStatement in JDBC. Here is an SQL interrogation to think mass details using ISBN release past times calling a stored physical care for from Java Program using Callable Statement:

String SQL = "{call Books.dbo.usp_BookDetails_Get(?)}"; CallableStatement cs = con.prepareCall(SQL); cs.setString(1, "978-0132778046"); cs.setString(2, "978-0132778047"); ResultSet rs = cs.executeQuery();

This code volition throw:

com.microsoft.sqlserver.jdbc.SQLServerException: The index two is out of range.
at com.microsoft.sqlserver.jdbc.SQLServerException.makeFromDriverError(SQLServerException.java:190)
at com.microsoft.sqlserver.jdbc.SQLServerPreparedStatement.setterGetParam(SQLServerPreparedStatement.java:714)
at com.microsoft.sqlserver.jdbc.SQLServerPreparedStatement.setValue(SQLServerPreparedStatement.java:723)
at com.microsoft.sqlserver.jdbc.SQLServerPreparedStatement.setString(SQLServerPreparedStatement.java:1048)

Why? because there is entirely 1 interrogation parameter required past times the stored physical care for "?" in addition to index starts from 1 inwards JDBC rather than zero. Hence, index two is invalid because there is no instant placeholder inwards your SQL query.

This fault tin likewise come upward when you lot are executing PreparedStatement based SQL interrogation which contains house holders or bind parameters every bit shown below:

PreparedStatement ps = con.prepareStatement("SELECT * from Books WHERE ISBN=?"); ps.setString(1, "978-0132778047"); ps.setString(3, "1");  ResultSet rs = ps.executeQuery(); 

This code volition throw, the index three is out of make error, every bit you lot tin run across it below:

com.microsoft.sqlserver.jdbc.SQLServerException: The index three is out of range.
at com.microsoft.sqlserver.jdbc.SQLServerException.makeFromDriverError(SQLServerException.java:190)
at com.microsoft.sqlserver.jdbc.SQLServerPreparedStatement.setterGetParam(SQLServerPreparedStatement.java:714)
at com.microsoft.sqlserver.jdbc.SQLServerPreparedStatement.setValue(SQLServerPreparedStatement.java:723)
at com.microsoft.sqlserver.jdbc.SQLServerPreparedStatement.setString(SQLServerPreparedStatement.java:1048)

Similarly, if you lot run across SQLServerException: The index 1 is out of range, it agency at that topographic point is no placeholder inwards PreparedStatement of CallableStatement simply you lot are notwithstanding setting values past times calling diverse setXXX() methods.


That's all well-nigh the actual drive of "com.microsoft.sqlserver.jdbc.SQLServerException: The index 35 is out of range" fault in addition to how to cook it. The actual argue was that release of placeholder was 34 simply you lot are calling setXXX() method 35 times i.e. to a greater extent than than hence release of defined placeholders. Once you lot take the extra setXXX() telephone band or increased the release of placeholders, the fault was fixed.

If you lot are novel inwards JDBC hence you lot tin likewise refer JDBC Recipes: H5N1 Problem-Solution Approach mass to acquire to a greater extent than well-nigh how to connect database from Java application:

Related JDBC tutorials in addition to troubleshooting guides

• Difference betwixt type 1 in addition to type four JDBC drivers inwards Java (answer)
• Top 10 JDBC Interview Questions for Java programmers (list)
• How to solve java.lang.classnotfoundexception oracle.jdbc.driver.oracledriver? (solution)
• Cause in addition to solution of java.lang.ClassNotFoundException: com.mysql.jdbc.Driver (solution)
• How to connect MySQL database from Java program? (guide)
• How to convert java.util.Date to java.sql.Date inwards JDBC Java? (solution)
• Top 10 JDBC Best Practices for Java develoeprs (list)
• java.sql.SQLException: No suitable driver constitute for jdbc:jtds:sqlserver (solution)
• java.lang.ClassNotFoundException: com.microsoft.sqlserver.jdbc.SQLServerDriver (solution)

Further Learning
JSP, Servlets in addition to JDBC for Beginners: Build a Database App
Complete JDBC Programming Part 1 in addition to 2
Java Platform: Working amongst Databases Using JDBC

How To Solve Arithmetics Overflow Fault Converting Identity To Information Type Tinyint, Smallint Or Int Inward Microsoft Sql Server Database

Last twelvemonth nosotros had a production number where 1 of our backup jobs was failing patch inserting Orders aggregated from other systems into our SQL Server database. The argue was dreaded "Arithmetic overflow fault converting IDENTITY to information type int" because the tabular array was using IDENTITY characteristic of SQL Server to generate OrderId, together with Identity has breached it a maximum value, which is around 2.1 billion, exactly 2,147,483,647. The fault "Arithmetic overflow fault converting IDENTITY to information type int" comes when IDENTITY value is inserted into a column of information type int, but the value is out-of-range. For example, if the electrical current value of Identity becomes to a greater extent than than 2,147,483,647, together with so yous cannot shop that into an int column because it's to a greater extent than than the maximum value of int inward SQL Server.

The fault is to a greater extent than mutual amongst columns using smaller datatypes similar SMALLINT, TINYINT, together with INT and uses IDENTITY characteristic to automatically generate values.  For example, yous volition acquire "Arithmetic overflow fault converting IDENTITY to information type smallint" if identity value crosses 32,767 which is the maximum value for smallint inward SQL Server.

Similarly, yous volition acquire "Arithmetic overflow fault converting IDENTITY to information type tinyint" if IDENTITY has grown beyond 255, the maximum value of tinyint information type inward SQL Server.

Btw, if yous are non familiar amongst the attain of basic information types inward SQL Server, I strongly propose yous boot the bucket through a course of teaching like Microsoft SQL Server For Beginners to larn fundamentals. Such cognition goes a long agency inward debugging together with troubleshooting this form of work inward production. This is 1 of my favorite SQL Server course of teaching on Udemy together with it covers all the cardinal concepts a programmer or a DBA needs to know most SQL Server.

Anyway, let's plow dorsum our focus on how to solve this problem.

The Problem

You are getting "Arithmetic overflow fault converting IDENTITY to information type int," or perchance "Arithmetic overflow fault converting IDENTITY to information type smallint," or "Arithmetic overflow fault converting IDENTITY to information type tinyint" patch inserting information into a tabular array which uses IDENTITY inward SQL Server. It totally depends upon the information type of column but fault suggests that the work is related to IDENTITY together with values are out-of-range.

Troubleshooting

First affair commencement is to uncovering out where exactly the fault is occurring, similar which column, which tabular array together with which database. Unfortunately, SQL Server errors non really accurate, but they are neat at all. They volition probable say yous which stored physical care for yous were running together with which line of SQL caused this error. By next those traces, yous tin give notice locate the column where information insertion is failing.

Once yous flora the column, yous tin give notice confirm the information type, similar if yous are getting "Arithmetic overflow fault converting IDENTITY to information type tinyint" fault together with so most probable your column would direct maintain tinyint every bit a information type. Similarly, it could move an int or minor int.

After that, nosotros take away to uncovering the electrical current value of IDENTITY for that table, together with for that, nosotros take away to utilization DBCC tool every bit shown below:

DBCC CHECKIDENT('Audit.OrderDetails')

This volition impress something like:
Checking identity information: electrical current identity value '11762933', electrical current column value '11762933'.
DBCC execution completed. If DBCC printed fault messages, contact your organization administrator.

If this value is out-of-range, together with so it confirms that the IDENTITY value is causing the problem.

Btw, yous may non move able to run that ascendence inward production, every bit yous may non direct maintain relevant permissions. In that case, merely include your Database admins or DBAs. I also propose yous boot the bucket through the SQL Server Administration - Part 1 course of teaching on Udemy to larn most tools similar DBCC which is really useful patch working together with troubleshooting problems similar this inward SQL Server.

Solution

There are 2 solutions to this work -

1. First 1 is to increase the information type of column to bigint, a 64 fighting int value inward SQL Server which ranges from -2^63 (-9,223,372,036,854,775,808) to 2^63-1 (9,223,372,036,854,775,807).

2. Or, reseed the IDENTITY value if at that topographic point are gaps inward the value together with electrical current rows inward the tabular array is less than the attain of values supported past times that column.

For example, if your OrderId column which is causing work has an int information type, but at that topographic point are entirely 1 billion rows there, but IDENTITY value is already 2147483647 together with so yous tin give notice reseed the IDENTITY to direct maintain wages of the gap betwixt an actual number of rows together with the electrical current value of IDENTITY.

But, for reseeding yous either take away to drib the tabular array or truncate it together with for that argue it's ameliorate to re-create the information into a temporary tabular array together with 1 time the IDENTITY is reseeded, re-create it 1 time again into the master copy tabular array every bit shown below:

SELECT * INTO temp..OrderDetailsBackup FROM OrderDetails ORDER BY OrderId   TRUNCATE TABLE OrderDetails   DBCC CHECKIDENT (OrderDetails, RESEED,1)   INSERT INTO OrderDetails( ....) SELECT (....) FROM OrderDetailsBackup

By doing this, all the rows directly direct maintain IDENTITY values starting from one. You tin give notice also confirm the maximum value for your IDENTITY column past times using the MAX function, every bit shown below:

SELECT MAX(OrderId) FROM OrderDetails

This volition give yous a proficient idea, how much your tabular array tin give notice grow farther without breaking amongst "Arithmetic overflow fault converting IDENTITY to information type tinyint" or "Arithmetic overflow fault converting IDENTITY to information type smallint" error.

Though, earlier applying whatever solution, similar increasing the information type or reseeding the IDENTITY value, yous take away to perform due diligence. For example, if yous are accessing that column into another code together with so that could break.

If yous increment the information type, similar if a Java code is accessing an int column together with storing information into an int field, which has same attain every bit SQL Server int, i.e. (2,147,483,647) together with so a large value volition non check into it together with it volition overflow into a negative value, which tin give notice elbow grease issue.

Similarly, reseeding IDENTITY tin give notice also elbow grease a work if that value is used to generate something else. Having similar value may number inward duplicate Ids inward another system.

So, fifty-fifty though the solution of "Arithmetic overflow fault converting IDENTITY to information type tinyint" is simple, it tin give notice move complicated to solve inward a real-world scenario. It won't move slowly to increment the attain if your tabular array is essential, together with contains information which yous cannot lose, together with many clients are using that information live. 

Though, a proficient cognition of SQL Server itself comes handy patch dealing amongst such issues inward real-world, thus I propose every programmer working inward SQL Server to larn some T-SQL together with Administration functionality. If yous intend similar this together with so yous should banking company check out websites)

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Thanks for reading this article so far. If yous similar my solution together with explanation of "Arithmetic overflow fault converting IDENTITY to information type int" fault inward SQL Server, together with so delight portion amongst your friends together with colleagues. If yous direct maintain whatever questions or feedback, together with so delight drib a note.

P.S - If yous desire to larn Microsoft SQL Server from scratch,  yous should banking company check out Querying Microsoft SQL Server amongst Transact-SQL course, 1 of the best resources to master copy MSSQL inward depth. It's also really useful if yous are preparing for SQL Server certifications like Microsoft Certificate 70-461: "Querying Microsoft SQL Server 2012" together with 70-761 "Querying Data amongst Transact-SQL".