I want to read data from txt file and insert them into a mysql database but i get error int the sql syntax.Μy sql code is given below:
`Statement stmt = null;
Class.forName("com.mysql.jdbc.Driver");
// STEP 3: Open a connection
System.out.print("\nConnecting to database...");
java.sql.Connection conn = DriverManager.getConnection(DB_URL, USER, PASS);
System.out.println(" SUCCESS!\n");
stmt = (Statement) conn.createStatement();
String sql = "INSERT INTO `data_db` (location , instrument,date_time,data)"+
" VALUES ('" + location + "','" + instrument + "',''" + date_time + "','" + blob + "')";
stmt.executeUpdate(sql);
`
What is the problem?
location, instrument, date_time and blob are strings...
The table has an id column that is auto-incremented...
Could you share the error message of the sql code?
AFAIK, it may be a redundant single quote between your instrument and date_time variables.
String query = "INSERT INTO `new_db2`(`name`, `price`, `add_date`, `image`) " + "VALUES ('"+name+"','"+p_price+"','"+date+"','"image"')";
i have ';' error expected in this Sql query please help me to solve this
I don't know the language you are using (I suppose Java) but may be you should write the statement like this:
String query = "INSERT INTO `new_db2`(`name`, `price`, `add_date`, `image`) " + "VALUES ('"+name+"','"+p_price+"','"+date+"','"+image+"')";
(lack of + before and after image)
I have a problem in this query:
string sqlString = "DELETE FROM [upload_news] WHERE (SELECT TOP " + no_of_recordss + " * FROM [upload_news] WHERE [country]='" + countryy.Text + "')";
Error Message :
Error: {"An expression of non-boolean type specified in a context
where a condition is expected, near ')'."}
How can i fix this ?
In the where clause you need a boolean expression.
Moreover, mysql doesn't support select top, you have to use limit instead and you can use it directly on delete
So your query should be:
delete from upload_news
where country=<SOME_COUNTRY> limit <NO_OF_RECORDS>
You have to replace values within "<>" with your desired values.
Or in your "strange" syntax:
string sqlString = "DELETE FROM [upload_news] WHERE [country]='" + countryy.Text + "' limit "+no_of_recordss;
I am trying to insert the guestpass type name in table guestpasstypes and at a time it will check the database whether the database has already that name or not by using this statement:
#"INSERT INTO guestpasstypes(guestPasstype_Name)values('" + tbPassType.Text + "') where not exists (select 'guestPasstype_Name' from guestpasstypes where guestPasstype_Name = '" + tbPassType.Text + "')"
but it accepts the duplicate name too, and it does not work. Would anyone please help on this?
For SQL Server it would look like this.
insert into guestpasstypes (guestPasstype_Name)
select 'name1'
where not exists (select *
from guestpasstypes
where guestPasstype_Name = 'name1')
I think it should work for MySQL as well.
If you are on SQL Server 2008 you can use MERGE.
merge guestpasstypes as G
using (select 'name2') as S(Name)
on G.guestPasstype_Name = S.Name
when not matched then
insert (guestPasstype_Name) values (Name);
UPDATE
I think the first option could be applied to your problem like this:
#"INSERT INTO guestpasstypes(guestPasstype_Name) select '" + tbPassType.Text
+ "' where not exists (select * from guestpasstypes where guestPasstype_Name = '"
+ tbPassType.Text + "')"
If you want it to throw an error you can either :
Put a unique index on the column (the easiest and preferred way)
or
Write a stored procedure which returns an error flag. Within the procedure, you first check for a matching value and if one is found, set the error flag and return. Otherwise do the insert as normal.
Try either INSERT IGNORE or INSERT ON DUPLICATE KEY:
INSERT IGNORE INTO `guestpasstypes`(`guestPasstype_Name`) values('" + tbPassType.Text + "');
OR
INSERT INTO `guestpasstypes`(`guestPasstype_Name`)values('" + tbPassType.Text + "') ON DUPLICATE KEY UPDATE `guestPasstype_Name` = `guestPasstype_Name`;
I am using Hibernate JPA and Spring with a Mysql database and I want to insert using a SQL statement like this:
Date saveDate = new Date();
java.sql.Timestamp timeStampDate = new Timestamp(saveDate.getTime());
Query persistableQuery = entityManager.createNativeQuery("INSERT INTO TASK_ASSESSMENT (ACTIVE_FLAG, ASSESSMENT_DATE, DESCRIPTION, "
+ "TITLE, NEEDS_LEVEL_ID, PATIENT_ID, USER_ID) VALUES ("
+ true +", " + timeStampDate + ", " + description + ", " + title + ", "
+ needsLevelId + ", " + patientId + ", " + userId + " )");
persistableQuery.executeUpdate();
But after running it I get the following error:
WARN : org.hibernate.util.JDBCExceptionReporter - SQL Error: -11, SQLState: 37000
ERROR: org.hibernate.util.JDBCExceptionReporter - Unexpected token: 15 in statement
[INSERT INTO TASK_ASSESSMENT (ACTIVE_FLAG, ASSESSMENT_DATE, DESCRIPTION, TITLE,
NEEDS_LEVEL_ID, PATIENT_ID, USER_ID)
VALUES (true, 2011-03-01 15?, any description, , 193, 1, 3 )]
Could someone help me on this please?
PS. I am aware of using hibernate in non-native way, but I need to use native way. I am also of insert ...from... , but I don't think it will help.
Finally I think the problem is mainly with the date. How do you guys pass on MySQL a datetime type using Java?
Update:
The following works fine, I guess it is a java date to mysql datetime conversion problem.
("INSERT INTO TASK_ASSESSMENT "
+ "(ACTIVE_FLAG, ASSESSMENT_DATE, DESCRIPTION, TITLE, "
+ "NEEDS_LEVEL_ID, PATIENT_ID, USER_ID) "
+ "VALUES (true, 1999-12-22, '" + description + "', '"
+ title + "', " + needsLevelId+", " + patientId
+ ", " + userId + ")");
Could anyone please help me on how to convert java.util.Date to MySQL datetime?
Don't use concatenation to insert data into queries, use parameters instead. It solves problem with wrong representation of values, as well as many other problems:
entityManager.createNativeQuery(
"INSERT INTO TASK_ASSESSMENT (ACTIVE_FLAG, ASSESSMENT_DATE, DESCRIPTION, "
+ "TITLE, NEEDS_LEVEL_ID, PATIENT_ID, USER_ID) VALUES (?, ?, ?, ?, ?, ?, ?)")
.setParameter(1, true)
.setParameter(2, saveDate, TemporalType.TIMESTAMP) // Since you want it to be a TIMESTAMP
.setParameter(3, description)
.setParameter(4, title)
.setParameter(5, needsLevelId)
.setParameter(6, patientId)
.setParameter(7, userId)
.executeUpdate();
Looks like a few issues. Some of your fields should have quotes around them. Also, possibly you need to format the timestamp in a different way, not sure how mysql expects it?
Query persistableQuery = entityManager.createNativeQuery(
"INSERT INTO TASK_ASSESSMENT
(ACTIVE_FLAG, ASSESSMENT_DATE, DESCRIPTION, "
+ "TITLE, NEEDS_LEVEL_ID, PATIENT_ID, USER_ID) VALUES ("
+ true +", "
+ "'" + timeStampDate + "'"
+ ", "
+ "'" + description + "'"
+ ", "
+ "'" + title + "'"
+ ", "
+ "'" + needsLevelId + "')");
As far as formatting the date, I suspect you will need to look at the SimpleDateFormat class, which will let you get the date into whatever format mysql expects. See http://download.oracle.com/javase/1.4.2/docs/api/java/text/SimpleDateFormat.html
You can send parameter in method save, or what you use and use named SQL queries Query persistableQuery = entityManager.createNativeQuery("INSERT INTO TASK_ASSESSMENT (ACTIVE_FLAG, ASSESSMENT_DATE, DESCRIPTION, TITLE, NEEDS_LEVEL_ID, PATIENT_ID, USER_ID) VALUES (":active_flag",":timeStampDate", ":description", ":title", ":needsLevelId", ":patientId", ":userId" )").setParameter("active_flag", your_object.getactive_flag).setParametr and etc
persistableQuery.executeUpdate();
but somewhere create object with all this fields.
In hibernate 5.3 and above positional parameters are deprecated so we need to use keys for parameter. Hql does not support insert with parameter. We need to follow below approch
import org.hibernate.query.Query;
public void insertData() {
String sql = "insert into employee(id,name,age,salary) values(:0,:1,:2,:3)";
List<Object> paramList = new ArrayList<Object>();
paramList.add(1); // id
paramList.add("sumit"); // name
paramList.add("23"); // age
paramList.add(10000); // salary
Session session = null;
try {
session = getSessionfactory().openSession();
Query query= session.createNativeQuery(sql);
for(int i=0;i<paramList.size();i++) {
query.setParameter(""+i,paramList.get(i)); // remember to add "" before i , we need to maintain key value pair in setParameter()
}
query.executeUpdate();
}
catch(Exception e) {
System.out.println(e);
}
}