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< p > Library Version 11.2.5.3< / p >
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< th colspan = "3" align = "center" > Chapter
Access Method Wrapup
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Access Method Wrapup
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< a href = "am_misc.html#am_misc_align" > Data alignment< / a >
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< a href = "am_misc_bulk.html" > Retrieving and updating records in bulk< / a >
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< a href = "am_misc_bulk.html#am_misc_bulk_get" > Bulk retrieval< / a >
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< a href = "am_misc_bulk.html#am_misc_bulk_put" > Bulk updates< / a >
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< a href = "am_misc_bulk.html#am_misc_bulk_del" > Bulk deletes< / a >
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< a href = "am_misc_partial.html" > Partial record storage and retrieval< / a >
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< a href = "am_misc_struct.html" > Storing C/C++ structures/objects< / a >
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< a href = "am_misc_perm.html" > Retrieved key/data permanence for C/C++< / a >
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< a href = "am_misc_error.html" > Error support< / a >
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< a href = "am_misc_stability.html" > Cursor stability< / a >
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< a href = "am_misc_dbsizes.html" > Database limits< / a >
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< a href = "am_misc_diskspace.html" > Disk space requirements< / a >
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< a href = "am_misc_db_sql.html" > Specifying a Berkeley DB schema using SQL DDL< / a >
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< a href = "am_misc_tune.html" > Access method tuning< / a >
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< a href = "am_misc_faq.html" > Access method FAQ< / a >
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< h2 class = "title" style = "clear: both" > < a id = "am_misc_align" > < / a > Data alignment< / h2 >
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< p > The Berkeley DB access methods provide no guarantees about byte alignment for
returned key/data pairs, or callback functions which take < a href = "../api_reference/C/dbt.html" class = "olink" > DBT< / a >
references as arguments, and applications are responsible for arranging
any necessary alignment. The < a href = "../api_reference/C/dbt.html#dbt_DB_DBT_MALLOC" class = "olink" > DB_DBT_MALLOC< / a > , < a href = "../api_reference/C/dbt.html#dbt_DB_DBT_REALLOC" class = "olink" > DB_DBT_REALLOC< / a > , and
< a href = "../api_reference/C/dbt.html#dbt_DB_DBT_USERMEM" class = "olink" > DB_DBT_USERMEM< / a > flags may be used to
store returned items in memory of arbitrary alignment.< / p >
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