Error In Getint Sql Returned No
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Check If Resultset Is Empty
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takes a minute: Sign up Check an int variable is null or is empty from the Database up vote 6 down vote favorite 1 I am having a variable which is: nocustomers = rs.getInt("CUST_TRAN_COUNT"); I would like to perform if it is null or not. I tried if (nocustomers ==null) It showed an error. How do I solve this? My preparedstatement new modified code is: try{ query=" select * from SS_summary where txn_date = to_date ('"+asatdate+"','YYYY-MM-DD') "; st = conn.createStatement(); rs = st.executeQuery(query); if (rs.next()) { nocustomers = rs.getInt("CUST_TRAN_COUNT"); nocheques =rs.getInt("CHEQ_DELIVERED_MAIN"); } if (rs.wasNull()) { out.println("NO DATA FOUND"); } %> java jdbc share|improve this question edited Sep 14 '11 at 11:07 Buhake Sindi 56.1k15112178 asked Sep 14 '11 at 6:41 maas 31113 you can't check primitive datatypes for null (= null pointer), only pointers to objects. what is rs ? you have to check your ORM / SQL adapter for such a functionality –Marian Theisen Sep 14 '11 at 6:43 Whats the error and whats the datatype of this variable. –Shahzeb Sep 14 '11 at 6:43 Related: stackoverflow.com/questions/2254435/can-an-int-be-null-in-java –Joachim Sauer Sep 14 '11 at 6:50 @maas, you don't need to do a rs.wasNull() as rs.getInt() will return a 0 if data was null by default. Rather say, if (nocustomers == 0) { out.println("NO DATA FOUND"); }. –Buhake Sindi Sep 14 '11 at 11:09 I'll have cancer because of looking at th
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Meta Discuss the workings and policies of this site About Us Learn more about Stack Overflow the company Business Learn more about hiring developers or posting ads with us Stack Overflow Questions Jobs Documentation Tags Users Badges Ask Question x Dismiss Join the Stack Overflow Community Stack Overflow is a community of 4.7 million programmers, just http://stackoverflow.com/questions/7412250/check-an-int-variable-is-null-or-is-empty-from-the-database like you, helping each other. Join them; it only takes a minute: Sign up Retrieve the returned value from sql server stored procedure using java up vote 0 down vote favorite 1 Here is my store procedure that returns a value. I need to call this procedure and get that return value into my java program. http://stackoverflow.com/questions/20268187/retrieve-the-returned-value-from-sql-server-stored-procedure-using-java
CREATE PROCEDURE my_procedure @advisor de , @adv_xml xml AS begin declare @psrg_idi idi, @adv_cd cd, @CurrDate cdt set @adv_cd = (select adv_cd from dbo.ADVICE_LK where upper(rtrim(adv_de)) = upper(@advisor)) set @psrg_idi = 0 set @CurrDate = getdate() BEGIN TRY exec my_proc_2 @CurrDate,@psrg_idi output insert into ADVICE (psrg_idi, adv_cd, psra_original_xml) values (@psrg_idi, @adv_cd, @adv_xml) select @psrg_idi as psrg_idi END TRY BEGIN CATCH DECLARE @ErrorMessage NVARCHAR(4000); DECLARE @ErrorSeverity INT; DECLARE @ErrorState INT; SELECT @ErrorMessage = ERROR_MESSAGE(), @ErrorSeverity = ERROR_SEVERITY(), @ErrorState = ERROR_STATE(); -- Use RAISERROR inside the CATCH block to return error -- information about the original error that caused -- execution to jump to the CATCH block. RAISERROR (@ErrorMessage, -- Message text. @ErrorSeverity, -- Severity. @ErrorState -- State. ); return -1 END CATCH end
Here is how I am trying to get this value into my java program returned by the above stored procedure. When I call this procedure from java, all the expected values are stored into database tables. But I am receiving the retWithin a row its column values can be accessed in any order. A ResultSet maintains a cursor pointing to its current row of data. Initially the cursor is positioned before the first row. The 'next' method moves the cursor to the next https://www.cis.upenn.edu/~bcpierce/courses/629/jdkdocs/api/java.sql.ResultSet.html row. The getXXX methods retrieve column values for the current row. You can retrieve values http://www.programcreek.com/java-api-examples/java.sql.ResultSet either using the index number of the column, or by using the name of the column. In general using the column index will be more efficient. Columns are numbered from 1. For maximum portability, ResultSet columns within each row should be read in left-to-right order and each column should be read only once. For the getXXX methods, the JDBC driver attempts error in to convert the underlying data to the specified Java type and returns a suitable Java value. See the JDBC specification for allowable mappings from SQL types to Java types with the ResultSet.getXXX methods. Column names used as input to getXXX methods are case insensitive. When performing a getXXX using a column name, if several columns have the same name, then the value of the first matching column will be returned. The column name option is designed error in getint to be used when column names are used in the SQL query. For columns that are NOT explicitly named in the query, it is best to use column numbers. If column names were used there is no way for the programmer to guarantee that they actually refer to the intended columns. A ResultSet is automatically closed by the Statement that generated it when that Statement is closed, re-executed, or is used to retrieve the next result from a sequence of multiple results. The number, types and properties of a ResultSet's columns are provided by the ResulSetMetaData object returned by the getMetaData method. See Also: executeQuery, getResultSet, ResultSetMetaData clearWarnings() After this call getWarnings returns null until a new warning is reported for this ResultSet. close() In some cases, it is desirable to immediately release a ResultSet's database and JDBC resources instead of waiting for this to happen when it is automatically closed; the close method provides this immediate release. findColumn(String) Map a Resultset column name to a ResultSet column index. getAsciiStream(int) A column value can be retrieved as a stream of ASCII characters and then read in chunks from the stream. getAsciiStream(String) A column value can be retrieved as a stream of ASCII characters and then read in chunks from the stream. getBigDecimal(int, int) Get the value of a column in the current row as a java.lang.BigDecimal object
java.io.IOException java.sql.Connection java.sql.Timestamp java.util.logging.Level java.sql.DatabaseMetaData java.sql.SQLException Frequently Used Methods next ( ) close ( ) getString ( ) getInt ( ) getLong ( ) getMetaData ( ) wasNull ( ) getObject ( ) getTimestamp ( ) getBoolean ( ) getDouble ( ) getBytes ( ) TYPE_FORWARD_ONLY getDate ( ) getBigDecimal ( ) first ( ) getFloat ( ) getShort ( ) CONCUR_READ_ONLY getRow ( ) View more ... last ( ) updateString ( ) getBlob ( ) getBinaryStream ( ) beforeFirst ( ) getTime ( ) TYPE_SCROLL_INSENSITIVE updateRow ( ) insertRow ( ) HOLD_CURSORS_OVER_COMMIT moveToInsertRow ( ) FETCH_FORWARD CONCUR_UPDATABLE getByte ( ) getClob ( ) TYPE_SCROLL_SENSITIVE absolute ( ) CLOSE_CURSORS_AT_COMMIT getArray ( ) updateInt ( ) getCharacterStream ( ) getStatement ( ) findColumn ( ) updateBinaryStream ( ) updateNClob ( ) isClosed ( ) updateNCharacterStream ( ) previous ( ) isAfterLast ( ) updateNString ( ) setFetchSize ( ) updateNull ( ) isBeforeFirst ( ) updateLong ( ) updateClob ( ) updateCharacterStream ( ) relative ( ) updateDate ( ) afterLast ( ) updateBlob ( ) getType ( ) updateShort ( ) updateAsciiStream ( ) isLast ( ) updateObject ( ) unwrap ( ) getNString ( ) updateFloat ( ) getFetchSize ( ) clearWarnings ( ) isFirst ( ) updateBytes ( ) getConcurrency ( ) deleteRow ( ) getAsciiStream ( ) getSQLXML ( ) FETCH_UNKNOWN FETCH_REVERSE updateDouble ( ) getWarnings ( ) updateTimestamp ( ) setFetchDirection ( ) updateBoolean ( ) getNClob ( ) getRef ( ) Java Code Examples for java.sql.ResultSet The following are top voted examples for showing how to use java.sql.ResultSet. These examples are extracted from open source projects. You can vote up the examples you like and your votes will be used in our system to product more good examples. → Go to Official Java Doc + Save this class to your library Example 1 Project: sslcertx File: MySQLXAResource.java View source code 11 votes public Xid[] recover(int flags) throws XAException { // Return all Xid at once, when STARTRSCAN is specified // Return zero-length array otherwise. if ( ((flags & TMSTARTRSCAN) == 0) && ((flags & TMENDRSCAN) == 0) && (flags != TMNOFLAGS)) throw new XAException(XAException.XAER_INVAL); if ((flags & TMSTARTRSCAN) == 0) return new MySQLXid[0]; try { ResultSet rs = connection.createStatement().executeQuery("XA RECOVER"); ArrayList