I have a table i fill with data from my phpMyadmin database table, but I want to only have one row based on the id I write in a text field. I tried doing it as you can see in code, but I get a - java.sql.SQLSyntaxErrorException: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near 'from inputs where id ='11'' at line 1;
Any sugestions or solutions?
My code
looks like there is something wrong with your sql statement. This exception will be throws if the syntax of your statement is wrong.
Please provide us the sql-statement you try to execute.
Related
I encountered a weird problem:
I have a column "MaxDealtDamage" which is for instance lower then 1000000 (1000k).
code is like this:
class xyz = PlayerData.GetData(player);
xyz.LoginTimes++;
PlayerData.SetData(xyz, player);
When it is 1000000 (1000k) or higher this error is beeing send:
com.mysql.jdbc.exceptions.jdbc4.MySQLSyntaxErrorException: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near '.000, MaxDefense = 0 WHERE UUID='d839d1f0-ad5b-4922-841c-1d6ee05d9f56'' at line 1
Its behaving like it would try to give him a String containing "4.000.000" but its an integer with the value "4000000" (4000k). For beeing sure the output in runtime is 4000000 I doublechecked it.
Here the query:
MessageFormat.format("INSERT INTO PlayerData(UUID,VIPExpirationDate,IPv4,FirstPlayTime,LastPlayTime,TotalPlayTime,TotalLogins,MaxDealtDamage,MaxDefense) "
+ "VALUES(''{0}'',''{1}'',''{2}'',''{3}'',''{4}'',{5},{6},{7},{8});", data.UUID.toString(), DBDateFormat.format(data.VIPExpirationDate), data.IPv4, DBDateFormat.format(data.FirstPlayTime), DBDateFormat.format(data.LastPlayTime), data.TotalPlayTime, data.TotalLogins, data.MaxDealtDamage, data.MaxDefense);
MessageFormat is not a tool for creating SQL statements. It's a simple utility for building text messages with correct formatting.
You are supposed to use PreparedStatement with bind parameters as explained in the Using Prepared Statements tutorial. JDBC will take care of escaping and formatting the supplied values so they can be received by the database server while preventing SQL Injections.
I'm tring to create a table in mysql from java desktop program but I obtain a MySqlSyntaxErrorException.
The query is :
CREATE TABLE FileXFascia(fila0 Integer,fila1 Integer,fila2 Integer,fila3 Integer) VALUES ('3','4','3','3')
Anyone knows where I'm wrong?
You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'VALUES ('3','4','3','3')' at line 1
You need to split these as follows:
CREATE TABLE FileXFascia(fila0 Integer,fila1 Integer,fila2 Integer,fila3 Integer);
INSERT INTO FileXFascial (fila0, fila1, fila2, fila3) VALUES ('3','4','3','3');
In your question there are two different operations on a table, You are trying to create and insert data in single query even in a wrong way. First you need to create table then insert data into created table. Like below syntax.
create table tableName(col1 dataType,col2 dataType,col3 dataType,.......coln dataType);
After creation of table now you can insert data into table. Like below syntax.
insert into tableName(col1, col2,col3,......coln) values ('data1','data2','data3',......'datan');
I have a database with so many values.How can i delete a specified row using a query.
I am using following query for deletion.I want to delete a row whith the help of colum name=user_name.(user_name=example).
But example named row is not present at the table.is shows error.Any if exist query for this
preparedStatement = (PreparedStatement) connection.prepareStatement("DELETE FROM users WHERE IF EXISTS user_name=example");
preparedStatement.executeUpdate();
The following error occur when i trying to compile
com.mysql.jdbc.exceptions.jdbc4.MySQLSyntaxErrorException: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'EXISTS user_name='example'' at line 1
remove IF EXISTS
use user_name='example' (with quotes) or even better user_name=? with PreparedStatement
use preparedStatement.executeUpdate()
it shouldnt throw any error even if no result
I think you just forgot the apostrophs that span the String literal 'example':
DELETE FROM users WHERE user_name='example'.
The 'WHERE EXISTS' is unnecessary here!
Greetings
Christopher
I tried here in my computer this way and works fine
PreparedStatement pt =con.prepareStatement("DELETE FROM users WHERE IF EXISTS user_name='"+"example'");
pt.executeUpdate();
I made a temporary table and run it
I have a MySQL Stored Procedure click here for stored procedure and calling the Procedure using Hibernate
Hibernate Code:
int ps=5;
SQLQuery query=session2.createSQLQuery("CALL AbsentReportproc(:_fromdate,:_todate)");
query.setParameter("_fromdate", fromdate);
query.setParameter("_todate", todate);
query.setFirstResult(ps*(pno-1));
query.setMaxResults(ps);
List<Object[]> empList=query.list();
when I execute above code I'm displayed with the following Error Message:
org.hibernate.exception.SQLGrammarException: could not execute query
Caused by: com.mysql.jdbc.exceptions.jdbc4.MySQLSyntaxErrorException: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'limit 5' at line 1
Note:If i remove the below statement from the code,I'm displayed with all records in a single jsp Page
query.setMaxResults(ps);
Could any one give me the solution what was the Problem?
thanks...
It is clearly a jdbc driver error that you are using;
Also try this with setFetchSize , and if this doesn't work also then,
I would suggest not to get the details out of the query in chunks if you want to display them all and there is not much data and you should rather store all the data without calling this method query.setMaxResults(ps); into a collection.
And when you want to display that data in pages, then get subList in case you are using List, to break the data at the application level and then display it on your view that is jsp in this case.
I have this code :
String check="SELECT COUNT(*) as check FROM recordstudent WHERE STUDENT_ID="+T_STUDENT_ID+" AND COURSE_ID="+T_COURSE_ID+" AND PACKAGE_ID="+T_PACKAGE_ID+" AND ACTIVITY_ID="+T_ACTIVITY_ID+" AND DATE="+T_DATE+ ";";
rs=myStmt.executeQuery(check);
int ch=0;
while(rs.next()){
ch=Integer.parseInt(rs.getString("check"));
}
if(ch==0)
{
String insertRecord="insert into recordstudent"+
"(STUDENT_ID,COURSE_ID,PACKAGE_ID,ACTIVITY_ID,TEST_NAME,DATE,SCORE,TOTAL_MARKS,PERCENTAGE,CORRECT_ANSWER,TOTAL_QUESTIONS,STUDENT_NAME,SCORE_PER_DIVISION,ATTEMPTS)"+
"VALUES("+
"'"+T_STUDENT_ID+"',"+
"'"+T_COURSE_ID+"',"+
"'"+T_PACKAGE_ID+"',"+
"'"+T_ACTIVITY_ID+"',"+
"'"+T_TEST_NAME+"',"+
"'"+T_DATE+"',"+
"'"+T_SCORE+"',"+
"'"+T_TOTAL_MARKS+"',"+
"'"+T_PERCENTAGE+"',"+
"'"+T_CORRECT_ANSWERS+"',"+
"'"+T_TOTAL_QUESTIONS+"',"+
"'"+T_STUDENT_NAME+"',"+
"'"+T_SCORE_PER_DIVISION+"',"+
"'"+t+"'"
+");";
myStmt.execute(insertRecord);
}
This snippet should insert the data in database only if the ch=0 .But I am getting this error:
com.mysql.jdbc.exceptions.jdbc4.MySQLSyntaxErrorException:
You have an error in your SQL syntax; check the manual that corresponds
to your MySQL server version for the right syntax to use near
'check FROM recordstudent WHERE STUDENT_ID=11 AND COURSE_ID=2 AND PACKAGE_ID=11 A'
at line 1
Can Anyone help me and solve my problem ?
Fundamentally: don't build your SQL this way. I notice that you've put quotes round the values in the "insert" SQL statement - but not in the "select" one. That's the start of the problem - but you shouldn't be including values like this in your SQL to start with. You should use parameterized SQL via PreparedStatement, and set values for the parameters. Benefits:
You can see your actual SQL more easily, so you'll be able to spot syntax errors. (This is basically keeping your code separate from your data.)
(Very important) You won't be open to SQL injection attacks
You won't need to worry about conversion issues for numbers, dates and times etc
There are other problems in your SQL (such as spaces and check being a reserved word in MySQL), but the very first thing you should fix is how you use values. Until you've done that, your code is inviting security problems.
(You should then start using more conventional variable names than T_STUDENT_NAME etc, but that's a different matter.)
check is a reserved word. Surround it with backticks: `check`
Try this
SELECT COUNT(*) as 'check' FROM recordstudent....
instead of
SELECT COUNT(*) as check FROM recordstudent....
I think check is a keyword