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java - How to get the number of columns from a JDBC ResultSet?

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2010/4/10 -I don't know how many columns the csv-file contains. How can I get the number of columns? Is there any JDBC-function for this? I can not find ...


How to get column count in a ResultSet in JDBC? - TutorialsPoint

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2019/7/30 -You can get the column count in a table using the getColumnCount() method of the ResultSetMetaData interface. On invoking, this method ...


ResultSetMetaData (Java Platform SE 8 ) - Oracle Help Center

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getObject is called to retrieve a value from the column. int, getColumnCount(). Returns the number of columns in this ResultSet object.

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JDBC ResultSetMetaData for ResultSet Column Examination

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2026/4/6 -2. getColumnCount() ... This method, returns an integer value of total column count in the ResultSet. Java.


Getting meta-data (column names and attributes) in JDBC

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The ResultSetMetaData object contains methods to retrieve the meta data · Sample methods: int getColumnCount(). returns the number of columns (= attributes) in ...


Retrieve column names from java.sql.ResultSet - Codemia

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getColumnCount() : This method retrieves the number of columns in the ResultSet . getColumnName(int column) : Returns the name of the specified column. Practise ...


How to count rows - count(*) and Java - CodeRanch

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2005/5/16 -My problem is that I have no idea how to use Java to send the query and have back an int instead of a ResultSet. Any ideas or suggestions?


Learning about a ResultSet using ResultSetMetaData methods - IBM

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Invoke the getColumnCount method to determine how many columns are in the ResultSet. For each column in the ResultSet, execute ResultSetMetaData methods to ...


How to get Row and Column Count from ResultSet in JDBC

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2019/7/30 -You can get the column count in a table using the getColumnCount() method of the ResultSetMetaData interface. On invoking, this method returns ...


Guide to the JDBC ResultSet Interface - Baeldung

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2024/1/8 -getColumnName(int columnNumber) – to get the name of the column; getColumnLabel(int columnNumber) – to access the label of the column, which is ...