bargainasebo.blogg.se

Pass DataSource to se JdbcTemplate: 6. Use JdbcTemplate To Create Table: 5. Use JdbcTemplate To Execute Aggregate Function: queryForLong: 4.

BatchUpdate ('INSERT INTO myTable(foo, bar) VALUES (, )', paramMapArray) but from what I can tell, that will just compile the SQL once and execute it multiple times, failing the first criterion again.1. It simplifies the use of JDBC and helps to avoid common errors.jdbcTemplate. It also catches JDBC exceptions and translates them to the generic, more informative, exception hierarchy defined in the org.springframework.

Specified by: queryForObject in interface JdbcOperations Parameters: sql - the SQL query to execute requiredType - the type that the result object is expected to match Returns: the result object of the required type, or null in case of SQL NULL Throws: IncorrectResultSizeDataAccessException - if the query does not returnExactly one row, or does not return exactly one column in that row DataAccessException - if there is any problem executing the query See Also: JdbcOperations.queryForObject(String, Object, Class) If you want toExecute a static query with a PreparedStatement, use the overloadedJdbcOperations.queryForObject(String, Class, Object.) method withThis method is useful for running static SQL with a known outcome.The query is expected to be a single row/single column query the returnedResult will be directly mapped to the corresponding object type. Since: Author: Rod Johnson, Juergen Hoeller, Thomas Risberg See Also: PreparedStatementCreator,Execute a query for a result object, given static SQL.Uses a JDBC Statement, not a PreparedStatement. Note: The DataSource shouldAlways be configured as a bean in the application context, in the first caseGiven to the service directly, in the second case to the prepared template.Because this class is parameterizable by the callback interfaces andInterface, there should be no need to subclass it.All SQL operations performed by this class are logged at debug level,Using "org.springframework.jdbc.core.JdbcTemplate" as log category.NOTE: An instance of this class is thread-safe once configured. See also PreparedStatementSetter andRowMapper for two popular alternative callback interfaces.Can be used within a service implementation via direct instantiationWith a DataSource reference, or get prepared in an application contextAnd given to services as bean reference.

Specified by: queryForObject in interface JdbcOperations Parameters: sql - the SQL query to execute args - arguments to bind to the query(leaving it to the PreparedStatement to guess the corresponding SQL type) May also contain SqlParameterValue objects which indicate notOnly the argument value but also the SQL type and optionally the scale requiredType - the type that the result object is expected to match Returns: the result object of the required type, or null in case of SQL NULL Throws: IncorrectResultSizeDataAccessException - if the query does not returnExactly one row, or does not return exactly one column in that row DataAccessException - if the query fails See Also: JdbcOperations.queryForObject(String, Class) Specified by: queryForRowSet in interface JdbcOperations Parameters: sql - the SQL query to execute Returns: an SqlRowSet representation (possibly a wrapper around aJavax.sql.rowset.CachedRowSet) Throws: DataAccessException - if there is any problem executing the query See Also: JdbcOperations.queryForRowSet(String, Object),Query given SQL to create a prepared statement from SQL and a list ofArguments to bind to the query, expecting a result object.Result will be directly mapped to the corresponding object type. This wrapper will translate any SQLExceptions thrown.Note that, for the default implementation, JDBC RowSet support needs toBe available at runtime: by default, Sun's com.sun.rowset.CachedRowSetImplClass is used, which is part of JDK 1.5+ and also available separately as part ofSun's JDBC RowSet Implementations download (rowset.jar).

queryForList public  List queryForList( Object. args)Result objects, each of them matching the specified element type. Specified by: queryForList in interface JdbcOperations Parameters: sql - the SQL query to execute args - arguments to bind to the queryOnly the argument value but also the SQL type and optionally the scale elementType - the required type of element in the result list(for example, Integer.class) Returns: a List of objects that match the specified element type Throws: DataAccessException - if the query fails See Also: JdbcOperations.queryForList(String, Class), Specified by: queryForMap in interface JdbcOperations Parameters: sql - the SQL query to execute args - arguments to bind to the queryOnly the argument value but also the SQL type and optionally the scale Returns: the result Map (one entry for each column, using theColumn name as the key) Throws: IncorrectResultSizeDataAccessException - if the query does notReturn exactly one row DataAccessException - if the query fails See Also: JdbcOperations.queryForMap(String),Arguments to bind to the query, expecting a result list.The results will be mapped to a List (one entry for each row) ofResult objects, each of them matching the specified element type. Otherwise, consider using one of theThe query is expected to be a single row query the result row will beMapped to a Map (one entry for each column, using the column name as the key). queryForMap public Map queryForMap( String sql,Arguments to bind to the query, expecting a result map.The queryForMap methods defined by this interface are appropriateWhen you don't have a domain model. Specified by: queryForObject in interface JdbcOperations Parameters: sql - the SQL query to execute requiredType - the type that the result object is expected to match args - arguments to bind to the queryOnly the argument value but also the SQL type and optionally the scale Returns: the result object of the required type, or null in case of SQL NULL Throws: IncorrectResultSizeDataAccessException - if the query does not return

queryForList public List> queryForList( String sql,Arguments to bind to the query, expecting an SqlRowSet.Class is used, which is part of JDK 1.