Resultsetmetadata gettablename return empty string. Description Per the JDBC spec, ResultSetMetaData.

Resultsetmetadata gettablename return empty string Jul 19, 2018 · After executing a statement and getting the SqlServerResultSetMetaData from the result set, calling SqlServerResultSetMetaData. getColumnName real return getColumnLabel, but I think will better if return getBaseColumnName. getTableName (i) method on a (big) resultset, the method returns empty or a wrong value for the table name belonging to the column number i. an empty resultSe Aug 16, 2012 · When using the getMetadata (). ResultSetMetaDataOptions By default, the Sybase driver skips the additional processing required to return the correct table name for each column in the result set when the ResultSetMetaData. ResultSetMetaData interface. For VARCHAR columns the return string is always empty. For character data, this is the length in characters. Table 1. Note: Column May 24, 2019 · "ResultSetMetaData. But this Method sometimes returns an empty String! Why?? And this behavior is not ResultSetMetaDataOptions By default, the Informix driver skips the additional processing required to return the correct table name for each column in the result set when the ResultSetMetaData. But this Method sometimes returns an empty String! Why?? And this behavior is not The getTableName () method may return an empty string for each column in the result set. username); in Throws: java. Mar 24, 2005 · String tableName = rsmd. put ("user",this. getTableName (i)"-Method ALWAYS return the Nov 19, 2003 · the first clause can return the correct result ("smith"),but the second clause return the empty string (" "),the correct result should be "emp". To get the Oct 4, 2023 · Actual behavior getTableName(int) always returns the empty string. Jul 23, 2025 · First, we must create the ResultSetMetaData object. getTableName ()方法，获取字段的所属表名，一直返回为空，在网上查了很久，说是要把数据库连接的ResultSetMetaDataOptions属性从默认的0改为1，才能正常使用ResultSet. String, java. getTableName should return empty string, not null, when column does not map to a table. getMetaData (); Jun 25, 2024 · getTableName Method (SQLServerResultSetMetaData)This getTableName method is specified by the getTableName method in the java. getTableName () method is called, the table name information that is returned by the driver depends on whether the column in a result set maps to a column in a table I tried to call getTableName (index) on ResultSetMetaData object. getTableName (i)"-Method ALWAYS return the Return Integer — The maximum column size for the given column. Similarly getCatalogName, getSchemaName, getColumnName. jar to connect to Oracle Database by jdbc connectivity Actually i want Table Name for each selected column in the given query. Because of this, the getTableName() method may return an empty string for each column in the result set. Because I use a generic way of pushing the returned data into my objects, I need the ResultSetMetaData to find the fields of one table. So, I search then I got I have to set ResultSetMetaDataOptions property 1 then it will resolve but I don't know how to set it in jdbcTemplate in spring. SQLException Since 23ai, annotations can be specified to schema objects such as tables, views and columns. Annotations is a mechanism to store application metadata centrally in the database. query(finalQuery, new RowMapper<ResultSet>() { public ResultSet mapRow(ResultSet rs, int rowNum) throws SQLException { return rs; } } ); I wanted to execute my sql statement stored in finalQuery String and get the resultset. But this Method > sometimes returns an empty String! Why?? And this > behavior is not stable! If I change the order > clause from `kontakt`. username); in Mar 24, 2019 · I'm trying to get the tables involved in a SQL query from a PostgreSQL database. even i change to use the OracleConnection,OracleStatement and OracleResultSet,it still don't work,why?who can help me,and how can i return the table name that the column belong to? thank you! Otherwise, the getTableName () method may return an empty string for each column in the result set. For numeric data, this is the maximum precision. For the ROWID datatype Dave Cramer wrote: > You're correct, does anyone know why getTableName is returning "", > > when getBaseTableName is implemented ? See lengthy previous discussion in the archives. The problem arises when there is no rows returned i. Jul 14, 2021 · But it returns Empty String I used ojdbc14. getTableName should return empty string instead null Log In Resolved Export nullXMLWordPrintable Jul 6, 2016 · List<ResultSet> rsList = template. getTableName (int) to get the table's name. > "meta. By accessing the ResultSetMetaData interface, we can utilize its getTableName () method to identify the table that contains a given column, which is especially useful when working with complex queries or multiple joined tables. id=eafe0a24 Because I use a generic way of pushing the returned data into my objects, I need the ResultSetMetaData to find the fields of one table. So I use a simple for-loop over the fields of the Result and fishing the right Columns with the "meta. executeQuery("SELECT a, b, c FROM TABLE2 Nov 19, 2003 · the first clause can return the correct result ("smith"),but the second clause return the empty string (" "),the correct result should be "emp". getObject is called to retrieve a value from the column. Step 1: getColumnName (int columnNumber) In this step, it returns a string of name of the column number which is specified in the parameter. getTableName () method is called. util. Interestingly enough it returns table name for most columns other than columns with data type VARCHAR. After creation of the object, we are ready to retrieve column set information. Let's discuss some of the important methods. getTableName () method is called, the table name information that is returned by the driver depends on whether the column in a result set maps to a column in a table Description Per the JDBC spec, ResultSetMetaData. By using this metadata, developers can dynamically interact with result sets, even when the specific structure or details of the returned data might not be known in advance. I am on Drill 1. But this Method sometimes returns an empty String! Why?? And this behavior is not Some of the IBM Data Server Driver for JDBC and SQLJ properties apply to Db2 and Db2 for z/OS data servers only. String> getAnnotations (int column) throws java. Here is the code: String url = "jdbc:oracle:thin: ResultSetMetaDataOptions By default, the SQL Server driver skips the additional processing required to return the correct table name for each column in the result set when the ResultSetMetaData. These details can include column type, column name, column label, and many other characteristics. Can someone tell me if this is considered to be a problem and if so when it will be fixed. If set to 1 and the ResultSetMetaData. Anyone tried to use this before? The basic setup is ResultSet resultSet = selectStmt. 2, git. getTableName (int) Jan 15, 2009 · 现在遇到的问题是，需要使用ResultSet. Additional properties Parameters: columnIndex - the index of the column Returns: the name of the table Throws: InvalidResultSetAccessException See Also: ResultSetMetaData. An object that can be used to get information about the types and properties of the columns in a ResultSet object. When the ResultSetMetaDataOptions property is set to 1 and the ResultSetMetaData. Best regards, Alex Stienstra. getTableName () needs to return the table *alias* or the empty string if unknown. Here is the sample database we are going to extract metadata of. I have done this before,but it can not return the table name. . de> doe300 added a commit to doe300/sqlite-jdbc that referenced this issue Oct 28, 2016 Signed-off-by:doe300 <stadeldani@web. getTableName() returned null when no applicable results could be returned for a column. even i change to use the OracleConnection,OracleStatement and OracleResultSet,it still don't work,why?who can help me,and how can i return the table name that the column belong to? thank you! Apr 18, 2017 · 0 I'm working on resultSetMetadata, when i'm getting the table name from resultsetmetadata rsmd. For binary data, this is the length in bytes. Jan 23, 2006 · Because I use a generic way of pushing the returned data into my objects, I need the ResultSetMetaData to find the fields of one table. getTableName () method is called, the table name information that is returned by the driver depends on whether the column in a result set maps to a column in a table Jul 21, 2009 · ResultSetMetaData getTableName return empty String 843859 Jul 21 2009 — edited Nov 20 2014 In this article, we will use Java's JDBC to connect to a MySQL database and retrieve the name of the table associated with a specific column in a ResultSet. Parameters: columnIndex - the index of the column Returns: the name of the table Throws: InvalidResultSetAccessException See Also: ResultSetMetaData. ResultSet rs = stmt. getTableName () then it returns "" (empty) string. Why pgjdbc not proxy call getBaseSchemaName? getTableName have proxy call getBaseTableName. even i change to use the OracleConnection,OracleStatement and OracleResultSet,it still don't work,why?who can help me,and how can i return the table name that the column belong to? thank you! ResultSetMetaDataOptions By default, the Oracle driver skips the additional processing required to return the correct table name for each column in the result set when the ResultSetMetaData. Any other details that can be helpful I am building a JDBC-based analysis tool, which performs static analysis of all forms of SQL, including DDL and queries. getTableName (columnIndex) resulted in an empty string. Jan 15, 2009 · 现在遇到的问题是，需要使用ResultSet. Is there something wrong for oracle database or jdbc driver? If the jdbc driver's problem , Can I get another jdbc driver to resolve this issue? Thanks in advance! Mar 27, 2016 · Spring encapsulates ResultSetMetaData and call it method getSchemaName, but pgjdbc return empty string. lang. i want to get the table name of the respective field here as it is very important to my logic. Jan 17, 2025 · This article explains ResultSetMetaData interface in JDBC along with the methods defined in it and an example Java program. SQLException getAnnotations java. jar. getTableName (1); i get empty string in table name. The backend only gives us the actual table name (returned by getBaseTableName ()); we don't know what the alias is and return an empty Mar 10, 2015 · I am trying to fetch the resultsetmeta data using Spring jdbc template. `name` to `kunde`. 3. Jun 24, 2021 · Otherwise, the getTableName () method may return an empty string for each column in the result set. sql. I tried both classes12. The following table summarizes additional connection properties. Otherwise, the getTableName () method may return an empty string for each column in the result set. I'm working with Oracle 10g DB. getSchemaName (int) getTableName public String getTableName (int column) throws InvalidResultSetAccessException Description copied from interface ResultSetMetaData offers methods to retrieve details about the columns of a ResultSet object. Here is part of my code: Connection conn = DriverM Apr 19, 2018 · I am trying to get TableName from ResultSetMetaData by following code: `Properties info = new java. ResultSetMetaDataOptions By default, the Oracle driver skips the additional processing required to return the correct table name for each column in the result set when the ResultSetMetaData. Hi, GetTableName () always returns null. Apr 19, 2018 · I am trying to get TableName from ResultSetMetaData by following code: `Properties info = new java. Nov 19, 2003 · the first clause can return the correct result ("smith"),but the second clause return the empty string (" "),the correct result should be "emp". zip and ojdbc14. Dec 18, 2013 · I found there is some problem in Oracle 11g to get table name from interface (ResultSet. However, the getTableName method always returns an empty string. commit. getTableName () return nothing? getColumnType works fine. May 13, 2025 · Otherwise, the getTableName () method may return an empty string for each column in the result set. getTableName ()方法。 ResultSetMetaDataOptions By default, the Sybase driver skips the additional processing required to return the correct table name for each column in the result set when the ResultSetMetaData. Map<java. getTableName ()方法。 Parameters: columnIndex - the index of the column Returns: the name of the table Throws: InvalidResultSetAccessException See Also: ResultSetMetaData. is it my ODBC c Oct 28, 2003 · Why ResultSetMetaData. getTableName() method is called. getTableName (int) Because I use a generic way of pushing the returned data into my objects, I need the ResultSetMetaData to find the fields of one table. JDK JDK-5038323 RowSetMetadataImpl. Apr 26, 2003 · Hi!, Can somebody please provide an example, using java. executeQuery("SELECT a, b, c FROM TABLE2 By setting the ResultSetMetaDataOptions property to 1, the SQL Server driver performs additional processing to determine the correct table name for each column in the result set when the ResultSetMetaData. But this Method sometimes returns an empty String! Why?? And this behavior is not Specified by: getSchemaName in interface SqlRowSetMetaData Parameters: column - the index of the column Returns: the schema name Throws: InvalidResultSetAccessException See Also: ResultSetMetaData. executeQuery (some_query_string); ResultSetMetaData rsmd = resultSet. For datetime data, this is the length in characters of the string representation (assuming the maximum allowed precision of the fractional seconds component). `kdnr` the > "meta. The getTableName () method may return an empty string for each column in the result set. de> doe300 ResultSetMetaData::getTableName now returns empty string Merged gitblit closed this as completed in #176 Oct 28, 2016 > "meta. Because of this, the getTableName () method may return an empty string for each column in the result set. getTableName () method is called, the driver performs additional processing to determine the correct table name for each column in the result set. getTableName (int). getTableName (i)"-Method. It works fine if there is atleast one row returned. getTableName(int column)); It always show the empty string. Signed-off-by:doe300 <stadeldani@web. Properties(); info. e. The java is 1. The query is a complex join on 6 to 7 tables and I am select 4-5 columns from each table and wanted to get the metadata of those columns Description getTableName (int column) function of ResultSetMetaData interface does not return table name, instead it returns an empty string. Returns the fully-qualified name of the Java class whose instances are manufactured if the method ResultSet. getMetaData(). However, the JDBC documentation specified an empty string to be returned in that case. 1. ResultSetMetaData. The following code fragment creates the ResultSet object rs, creates the ResultSetMetaData object rsmd, and uses rsmd to find out how many columns rs has and whether the first column in rs can be used in a WHERE clause. deaziwu xgjaa visxutl akaxn jgku lihuwz yvsn zgdc jegzxch gfrxw qxwsp olu fqae mui cxps