teach yourself pl sql in 24 hours pdf
Teach Yourself PL/SQL in 21 Days- P16
Ngày tải lên :
20/10/2013, 17:15
... creating, 54
creating (security exam-
ple), 538-539
data integrity (maintain-
ing), 300-304
listing, 302
defining, 299-300, 313,
319
delete, 296
enabling/disabling,
310-311
event, 311-312
defining, ... 254
debugging, 136
FOR, 121-122, 146
common errors, 124
EXIT statement, 140
listing, 121
nesting, 121
guidelines, 147
incrementing through,
123- 124
listing, 123
infinite, 144, 380
jumping into (GOTO), ... (dbms output.put
line() procedure), 17
processing benefits, 9
platform independence
(PL/ SQL benefits), 9
Platinum Technology Inc.
Web site, 11
PLS_INTEGER datatype,
43
syntax, 44
plus sign (+)
addition...
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Teach Yourself ILLUSTRATOR 7 in 24 hours
Ngày tải lên :
22/10/2013, 16:15
... referring to the blending of colors into each other.
* Anchor point The heart of a Bézier curve. More on this in Hour 6, "Drawing Bézier Paths."
* Line screen Printing term referring ... sections: Plug-ins Folder and Scratch Disks.
Plug-ins Folder
The Plug-ins folder is where Illustrator keeps all of its "extensions" or add-ons, including third-
party filters and plug-ins. ... leading is added or removed from a
line of type when using the leading keyboard shortcut (Option-up arrow and Option-down
arrow).
Baseline Shift specifies the increment when using the Baseline...
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Teach Yourself PL/SQL in 21 Days- P1
Ngày tải lên :
07/11/2013, 20:15
... PL/ SQL stored subprograms and SQL queries.
F
IGURE
1.1
Relationship of
SQL* Plus, PL/ SQL,
and Oracle.
Oracle Database Server
SQL Statement
Executor
SQL* Plus
PL/ SQL
Engine
SQL
Queries
Your PC
In ... Compatibility 574
Using the
OUT
and
IN OUT
Arguments 575
Calling PL/ SQL from Java Using SQLJ 578
Using SQLJ to Execute an Anonymous PL/ SQL Block 578
Using SQLJ to Call a PL/ SQL Procedure or Function ... by SQL* Plus. All the listings also have
line numbers so that the analysis following each listing can easily refer to specific lines
of code. When you type PL/ SQL blocks into SQL* Plus, SQL* Plus...
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Teach Yourself PL/SQL in 21 Days- P2
Ngày tải lên :
07/11/2013, 20:15
... three-day weekend. The
test in line 16 also includes Saturday and Sunday because many employers still give
employees a day off, resulting in a three-day weekend. Line 24 uses PL/ SQL s
ADD_MONTHS
function ... Page 61
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Writing PL/ SQL Expressions 65
3
PL/ SQL operators are either unary or binary. Most are binary operators, which
means ... block begins at line 3 and ends on line 31. A
nested anonymous block begins on line 14 and ends on line 21. Lines 6 through 9 define
the
name_print
procedure.
The variable
a_name
is declared in the...
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Teach Yourself PL/SQL in 21 Days- P3
Ngày tải lên :
07/11/2013, 20:15
... values in a
O
UTPUT
A
NALYSIS
N
EW
T
ERM
05 7982 ch03 11.8.00 11:22 AM Page 79
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Exploring PL/ SQL Functions
As you saw in ... When I am comparing strings, especially when comparing a
CHAR
string to a
VARCHAR2
string, is there a convenient way to tell PL/ SQL to ignore any trail-
ing spaces in the
CHAR
string?
A Yes. Use ... the screen as the PL/ SQL
code executes.
Note
06 7982 ch04 11.8.00 11:23 AM Page 107
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Writing PL/ SQL Expressions 77
3
AND
The
AND
operator...
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Tài liệu Teach Yourself PL/SQL in 21 Days- P4 pptx
Ngày tải lên :
15/12/2013, 05:15
... about using this example as a PL/ SQL procedure and returning to the good old days
of BC? Listing 6.9 shows another example of using
TO_CHAR
with converting and format-
ting dates.
L
ISTING
6.9
Converting
DATE
to ...
Jumping into a Lower-Level Block
You can’t jump from an outer block of PL/ SQL code back to an inner block of PL/ SQL
code. Listing 5.1 is an example of an illegal
GOTO
call.
The following listing, ... must be within the same scope as the
GOTO
statement itself. Conditions that cause Oracle to not compile the PL/ SQL code
include
•Jumping into a subblock
•Jumping into a loop
•Jumping into an
IF
statement
•Using
GOTO
to...
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Tài liệu Teach Yourself PL/SQL in 21 Days- P5 doc
Ngày tải lên :
15/12/2013, 05:15
... the SQL* Plus prompt.
The code in Listing 7.2 illustrates the
PUT_LINE
command line that you can include
inside a procedure.
L
ISTING
7.2
The
PUT_LINE
Command Within a Procedure
CREATE OR REPLACE ... watermark.
D
AY
8
W
EEK
2
Using SQL
by Tom Luers
By definition, PL/ SQL is SQL s procedural language extension. PL/ SQL sup-
ports all SQL s data manipulation commands (except for
EXPLAIN PLAN
), trans-
action ... 11 :24 AM Page 187
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Using Oracle’s Built -In Functions 181
6
L
ISTING
6.26
The Proper Method to Find the First Monday in...
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Tài liệu Teach Yourself PL/SQL in 21 Days- P6 docx
Ngày tải lên :
15/12/2013, 05:15
... 1
Key: employee name
emp. number
Listing 8.4 shows the PL/ SQL anonymous block that you can run to insert the necessary
data.
L
ISTING
8.4
Inserting Records with PL/ SQL Code
DECLARE insert department ... containing any of the
following:
OPEN stock_listing_cur (stock_listing.name, ‘ABCDEFG’);
OPEN stock)listing_cur (stock_listing_name, stock_listing_price);
Fetching Data in a Cursor
You get data into ... two
entries. PL/ SQL does not reserve space for entries that are not used.
Listing 10.1 shows the entire contents of the
employee
table being read into an index-by
table named
emp
.
L
ISTING
10.1
Placing...
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Tài liệu Teach Yourself PL/SQL in 21 Days- P7 ppt
Ngày tải lên :
15/12/2013, 05:15
... trigger.
Lines 17–19 define a record containing the primary key fields for the
emp_dept
table.
This record in turn is used to define a PL/ SQL table type (lines 23 24) . Finally, in line
27, a PL/ SQL ... central point of con-
trol for maintaining the number of employees in a department, and they relieve you from
having to program and test this logic several places in your application.
Maintaining ... imagina-
tion. Some common uses are
• Enforcing business rules
• Maintaining referential integrity
• Enforcing security
• Maintaining a historical log of changes
• Generating column values, including...
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Tài liệu Teach Yourself PL/SQL in 21 Days- P8 pptx
Ngày tải lên :
15/12/2013, 05:15
... within a SQL
statement. In fact, the statement in question was executed from within SQL* Plus,
although it could have been inside a PL/ SQL block. Lines 12-22 show a PL/ SQL block
that first instantiates ... first five inserts (lines 1–15) put some sample employees and departments in
place for testing purposes. The next four inserts (lines 16–27) assign each of the
two employees just inserted to ... in Listing 12.8 in order to insert a few
building
objects.
These will be used in later examples that show how to update object tables and how to
link objects in the database.
L
ISTING
12.8
Inserting...
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Tài liệu Teach Yourself PL/SQL in 21 Days- P9 doc
Ngày tải lên :
15/12/2013, 05:15
... READ(BLOB_Locator,
Read_Amount IN BINARY_INTEGER,
Starting_Location IN INTEGER,
Buffer OUT RAW);
PROCEDURE READ(CLOB_Locator CHARACTER SET Set_Desired,
Read_Amount IN BINARY_INTEGER,
Starting_Location IN INTEGER,
Buffer ... exam-
ple of the syntax for the
COMPARE
function can be seen below.
FUNCTION COMPARE(
Lob1 IN BLOB,
Lob2 IN BLOB,
Number_Bytes_to_Compare IN INTEGER,
Origin_Lob1 IN INTEGER := 1,
Origin_Lob2 IN INTEGER ... Compare_Result_Integer;
FUNCTION COMPARE(
Lob1 IN CLOB CHARACTER SET Set_Desired,
Lob2 IN CLOB CHARACTER SET LOB1%CHARSET,,
Number_Bytes_to_Compare IN INTEGER,
Origin_Lob1 IN INTEGER := 1,
Origin_Lob2 IN INTEGER...
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Tài liệu Teach Yourself PL/SQL in 21 Days- P10 docx
Ngày tải lên :
15/12/2013, 05:15
... can simply issue a PL/ SQL
EXECUTE IMMEDIATE
statement.
EXECUTE IMMEDIATE string
[INTO {variable[, variable] | record}]
[USING [IN | OUT | IN OUT] bind
[, [IN | OUT | IN OUT] bind] ];
In this ... native
dynamic SQL in the remaining part of this lesson.
Note
Executing DML and DDL
Executing DML and DDL statements is quite easy using native dynamic SQL. Instead of
making all those calls to
DBMS _SQL
, ... ON
at the SQL* Plus
prompt.
L
ISTING
16.3
Using
SELECT
to Verify Inserted Records
1: DECLARE
2: /* The purpose of this PL/ SQL block is to demonstrate
3: executing queries within PL/ SQL through...
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Tài liệu Teach Yourself PL/SQL in 21 Days- P11 docx
Ngày tải lên :
15/12/2013, 05:15
... multiplying 24 hours in the day by 60 minutes/hour by 60 seconds/
minute, and then taking the inverse.
The next example calls a stored procedure, which passes three parameters with the values
maintenance
,
1000
, ... seen in the following example.
PROCEDURE SUBMIT(job_number OUT BINARY_INTEGER,
job_to_submit IN VARCHAR2,
next_run IN DATE DEFAULT SYSDATE,
interval IN VARCHAR2 DEFAULT NULL,
job_parsing IN BOOLEAN ... 490
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Writing to Files and the Display 491
17
GET_LINES
occurs in lines 32–34. The
lines_to_get
parameter contains...
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Tài liệu Teach Yourself PL/SQL in 21 Days- P12 doc
Ngày tải lên :
15/12/2013, 05:15
... interface within the
server results in an exception being thrown.
Will PL/ SQL Go Away?
Will Java replace PL/ SQL as the preferred programming language to use within the serv-
er? Will PL/ SQL die off? ... that string (line 29).
You can make this method useable from PL/ SQL by publishing it with the
CREATE
PROCEDURE
statement shown in Listing 20.11.
576 Day 20
You can find this listing in the file ... ‘Employee.getSuperName(int) return java.lang.String’;
6: /
Function created.
In line 1, the name get_super_name is the one given to the Java method in the
PL/ SQL world. Line 4 begins the Java-specific...
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Tài liệu Teach Yourself PL/SQL in 21 Days- P13 ppt
Ngày tải lên :
24/12/2013, 12:17
... and both enqueuing and dequeuing are enabled.
Placing Messages in a Queue
After creating and starting a queue, you place messages in the queue by enqueuing them.
Enqueuing a message involves these ... NULL,
multiple_consumers IN BOOLEAN DEFAULT FALSE,
message_grouping IN BINARY_INTEGER DEFAULT none,
comment IN VARCHAR2 DEFAULT NULL,
auto_commit IN BOOLEAN DEFAULT TRUE,
primary_instance IN BINARY_INTEGER ... Page 607
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A
PPENDIX
Answers
Day 1, “Learning the Basics of PL/ SQL
1. What tells SQL* Plus to send your PL/ SQL code...
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