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MIME Types list

Multipurpose Internet Mail Extensions (MIME) is an Internet standard that extends the format of email to support: Text in character sets other than ASCII Non-text attachments: audio, video, images, application programs etc. Message bodies with multiple parts Header information in non-ASCII character sets    MIME Types list   Suffixes Mime .3dm x-world/x-3dmf .3dmf x-world/x-3dmf .a application/octet-stream .aab application/x-authorware-bin .aam application/x-authorware-map .aas application/x-authorware-seg .abc text/vnd.abc .acgi text/html .afl video/animaflex .ai application/postscript .aif audio/aiff .aif audio/x-aiff .aifc audio/aiff .aifc audio/x-aiff .aiff audio/aiff .aiff audio/x-aiff .aim application/x-aim .aip text/x-audiosoft-intra .ani application/x-navi-animation .aos application/x-nokia-9000-communicator-add-on-software .aps application/mime .arc ap...

What is the difference between ExecuteScalar, ExecuteReader and ExecuteNonQuery?

 ExecuteScalar is typically used when your query returns a single value. If it returns more, then the result is the first column of the first row. An example might be SELECT @@IDENTITY AS 'Identity'.  ExecuteReader is used for any result set with multiple rows/columns (e.g., SELECT col1, col2 from sometable).  ExecuteNonQuery is typically used for SQL statements without results (e.g., UPDATE, INSERT, etc.).