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Query based insertion or updating of blob values

The Oracle documentation uses two terms: defining (for instructing the library where the output data should go) and binding (for the input data and input/output PL/SQL parameters).

For the sake of simplicity, SOCI uses the term binding for both of these.

A cursor is a data access object that can be used to either iterate over the set of rows in a table or insert new rows into a table.SOCI can be easily extended with support for user-defined datatypes.The extension mechanism relies on appropriate specialization of the Note that there is a number of types from the Boost library integrated with SOCI out of the box, see Integration with Boost for complete description.with this column), the second "val" (with colon) is a placeholder and its name is ignored here, and the third "val" is a name of local variable.To better understand the meaning of each "val" above, consider also: expression should match.If a script needs to make multiple passes over the data, the cursor's create a cursor object that can be used to iterate through the records.The methods of the cursor object created by the various cursor functions vary depending on the type of cursor created.For portability reasons, it is recommended to use named parameters, as shown in the examples above.The query rewriting can be switched off by compiling the backend with the Whereas the first alternative is easy to handle, the other two are more complex.Note that some database servers, like Oracle, allow PL/SQL procedures to modify their in/out parameters - this is detected by the SOCI library and an error is reported if the database attempts to modify the , etc.In fact, the backend rewrites the given query to the native form - and this is also one of the very few places where SOCI intrudes into the SQL query.

798 comments

  1. Optional Binding parametrized values are bound to the query context. All functions provided by select query, except orderBy, can only be called once, otherwise an exception will be raised. Based on performance considerations, Lovefield does not actively clone/freeze the object retrieved from its internal cache.

  2. Int id = 7; string name; indicator ind = i_null; sql "insert into personid, name valuesid, name", useid, usename, ind;. In the above example, the row is inserted with name attribute set to null. Indicator variables can also be used in conjunction with vector based insert, update, and select statements vectorstring.

  3. You can use SObject Basic Information, SObject Rows, or SObject Collections REST resources to insert or update blob data in Salesforce standard objects. You can upload files of any type, and you must use a multipart message that conforms to the MIME multipart content-type standard. For more information, see the WC3.

  4. In PHP 5.0.0 and up, this function will return the number of rows affected by the query for INSERT, UPDATE and DELETE statements. In order to retain. close new blob */ $blob_id_str = ibase_blob_close$blob_id; /* insert into table */ ibase_query"INSERT INTO BLOB_TABLE ID, BLOB VALUES 1, ?",$blob_id_str;

  5. Table of Contents. Synopsis; Description. ON DUPLICATE KEY UPDATE; Insert From Dynamic Queries Constraints. Within expressions in the UPDATE clause you can use the VALUEScolumn_ident function to refer to column values from the INSERT statement. So VALUEScolumn_ident in the UPDATE clause referes.

  6. If you are usually interested in separate partitions of your data only, as might be the case for e.g. analyzing time based log data, you can query them much much faster because you don't have to iterate over all rows of all partitions. Deletion is faster too if you delete whole partitions at once, as a whole table can be deleted.

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