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In your pivot table, you created a conditional formatting rule to color the top three sales amounts, using bold font and green fill color. You also created a conditional formatting rule to color the above-average sales, using yellow fill color. Now, the top three sales amounts have bold font, but the cells are yellow, instead of green. This example is based on the Order.xlsx workbook.

In the following example, we create some binary data in our table using SYS_GUID(), a built-in function that returns a 16-byte RAW string that is globally unique (GUID stands for globally unique identifier): ops$tkyte@ORA11GR2> insert into t values ( sys_guid() ); 1 row created ops$tkyte@ORA11GR2> select * from t; RAW_DATA -------------------------------FD1EB03D3718077BE030007F01002FF5 You can immediately note two things here First, the RAW data looks like a character string That is just how SQL*Plus retrieved and printed it; that is not how it is stored on disk SQL*Plus cannot print arbitrary binary data on your screen, as that could have serious side effects on the display Remember that binary data may include control characters such as a carriage return or linefeed or maybe a Ctrl-G character that would cause your terminal to beep.

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Second, the RAW data looks much larger than 16 bytes in fact, in this example, you can see 32 characters This is due to the fact that every binary byte takes two hexadecimal characters to display The.

Running the program yields the following output: Calling with one argument. TRACE: select hello_newman('Jerry') hello_newman('Jerry') --------------------Hello Jerry Calling with two arguments. execute() Error: wrong number of arguments to function hello_newman() Calling with no arguments. execute() Error: wrong number of arguments to function hello_newman() The first call consists of just one argument. Since the example registered the function as taking exactly one argument, it succeeds. The second call attempts to use two arguments, which fails. The third call uses no arguments and also fails. And there you have it: a SQLite extension function. This does bring up a few new functions that we have not addressed yet. We ve created several helper functions for use with the book and to aid you in your SQLite work. You ll find these included for download on the Apress web site. Many of these functions definitions can be found in the source file util.c. The function log_sql() simply calls sqlite3_trace(), passing in a tracing function that prefixes the traced SQL with the word TRACE. We use this so you can see what is happening in the example as the SQL is executed. The second function is print_sql_result(), which has the following declaration: int print_sql_result(sqlite3 *db, const char* sql, ...)

stored RAW data is really 16 bytes in length, and you can see this using the Oracle DUMP function. Here, I am dumping the value of the binary string and using the optional parameter to specify the base that should be used when displaying the value of each byte. I am using base 16, so we can compare the results of dump with the previous string: ops$tkyte@ORA11GR2> select dump(raw_data,16) from t; DUMP(RAW_DATA,16) ------------------------------------------------------------------------------Typ=23 Len=16: fd,1e,b0,3d,37,18,7,7b,e0,30,0,7f,1,0,2f,f5 So, DUMP shows us this binary string is in fact 16 bytes long (LEN=16) and displays the binary data byte by byte. As we can see, this dump display matches up with the implicit conversion performed when SQL*Plus fetched the RAW data into a string. This implicit conversion goes the other direction as well: ops$tkyte@ORA11GR2> insert into t values ( 'abcdef' ); 1 row created. That did not insert the string abcdef, but rather a 3-byte RAW with the bytes AB, CD, EF, or in decimal with the bytes 171, 205, 239. If you attempt to use a string that does not consist of valid hex characters, you will receive an error message: ops$tkyte@ORA11GR2> insert into t values ( 'abcdefgh' ); insert into t values ( 'abcdefgh' ) * ERROR at line 1: ORA-01465: invalid hex number The RAW type may be indexed and used in predicates it is as functional as any other datatype. However, you must take care to avoid unwanted implicit conversions, and you must be aware that they will occur. I prefer and recommend using explicit conversions in all cases, which can be performed using the following built-in functions: HEXTORAW: To convert strings of hexadecimal characters to the RAW type RAWTOHEX: To convert RAW strings to hexadecimal strings

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