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SQLITE3CHANGESET_START(3) Library Functions Manual SQLITE3CHANGESET_START(3) NAME sqlite3changeset_start - Create An Iterator To Traverse A Changeset SYNOPSIS int sqlite3changeset_start(sqlite3_changeset_iter **pp, int nChangeset, void *pChangeset ); DESCRIPTION Create an iterator used to iterate through the contents of a changeset. If successful, *pp is set to point to the iterator handle and SQLITE_OK is returned. Otherwise, if an error occurs, *pp is set to zero and an SQLite error code is returned. The following functions can be used to advance and query a changeset iterator created by this function: ⊕ sqlite3changeset_next() ⊕ sqlite3changeset_op() ⊕ sqlite3changeset_new() ⊕ sqlite3changeset_old() It is the responsibility of the caller to eventually destroy the iterator by passing it to sqlite3changeset_finalize(). The buffer containing the changeset (pChangeset) must remain valid until after the iterator is destroyed. Assuming the changeset blob was created by one of the sqlite3session_changeset(), sqlite3changeset_concat() or sqlite3changeset_invert() functions, all changes within the changeset that apply to a single table are grouped together. This means that when an application iterates through a changeset using an iterator created by this function, all changes that relate to a single table are visited consecutively. There is no chance that the iterator will visit a change the applies to table X, then one for table Y, and then later on visit another change for table X. SEE ALSO sqlite3changeset_concat(3), sqlite3changeset_finalize(3), sqlite3changeset_invert(3), sqlite3changeset_new(3), sqlite3changeset_next(3), sqlite3changeset_old(3), sqlite3changeset_op(3), sqlite3session_changeset(3) NetBSD 8.0 March 11, 2017 NetBSD 8.0