Tài liệu Oracle SQL Jumpstart with Examples- P12 pptx
Tài liệu Oracle SQL Jumpstart with Examples- P12 pptx
... between multiple SQL commands, within the same block
of code. In Oracle SQL, each SQL statement cannot pass a result on to
another SQL statement or control structure, but PL /SQL can. Also, per-
haps ... PL /SQL 549
Chapter 24
Now let’s describe some small facts about changing data from within
PL /SQL blocks.
24.5 Changing Data in PL /SQL
Not only can data in tables be changed fr...
Tài liệu Oracle SQL Jumpstart with Examples- P6 pptx
... (starting with
Sheryl Crow and ending with James Taylor) appear in Figure 10.17 with a
blank space in the SONG_ID and GUESTARTIST_ID. The query could
not match any row in the GUESTAPPEARANCE table with ... rows.
ARTIST has 15 rows.
SONG has 118 rows.
SONG_GUESTARTIST has 5 rows.
Let’s begin with an Oracle format query, the result of which is shown in
Figure 10.25. This query...
Tài liệu Oracle SQL Jumpstart with Examples- P1 docx
...
Oracle SQL Jumpstart with Examples
!
The title of this book was originally Oracle SQL Reference, but during
the writing process, we set our hearts on the new title
Oracle SQL Jumpstart
with ... Contents
2 New Features of Oracle SQL 39
2.1 New Features in Oracle Database 10g 39
2.1.1 Oracle SQL Improvements in Oracle Database 10g 39
2.1.2 PL /SQL Improv...
Tài liệu Oracle SQL Jumpstart with Examples- P2 ppt
...
New Features of Oracle SQL
In this chapter:
What are the new features of Oracle SQL in Oracle Database 10
g
?
What were the new features of Oracle SQL in Oracle Database 9
... introduction to PL /SQL programming is covered in
Chapter 24.
Everything possible in Oracle SQL with respect to SQL coding can
now be coded and executed from within PL /SQL....
Tài liệu Oracle SQL Jumpstart with Examples- P3 docx
... and physical struc-
ture of Oracle Database plus new features available in both Oracle Database
10g and Oracle Database 9i. Now it’s time to begin looking into Oracle
SQL itself. The next chapter ... physical standby.
3.5.5 Clustering and Oracle RAC
Clustering was previously called Oracle Parallel Server and is now called
Oracle Real Application Clusters (RAC). Oracle RAC al...
Tài liệu Oracle SQL Jumpstart with Examples- P4 docx
... session and can only be used with SQL* Plus
tools (i.e., SQL* Plus, SQL* Plus Worksheet, and iSQL*Plus).
Look at the entire list by running the following statement in SQL* Plus
Worksheet:
SHOW ALL
... covers more detail using
SQL* Plus, particularly with respect to formatting. Further SQL* Plus output
formatting detail is essential to proper use and understanding of Oracle SQL...
Tài liệu Oracle SQL Jumpstart with Examples- P5 docx
... Web browser and the server.
8.4.2 iSQL*Plus versus SQL* Plus
The main features of iSQL*Plus are similar to the features of SQL* Plus or
SQL* Plus Worksheet:
Enter SQL commands in a box and click ... hostname as appropriate.
The file called ORACLE_ APACHE.CONF in the
$ORACLE_ HOME/Apache/Apache/conf directory must include
the file ISQLPLUS.CONF in the ORACLE_ HOME/sqlplus/admin
direc...
Tài liệu Oracle SQL Jumpstart with Examples- P7 pdf
... right and from top to bottom. The SQL parser will
not understand what to do with an attempt to pass a column alias from
bottom to top and will produce a syntax (SQL parse) error. A subquery is
parsed ... speaking, as listed previously in this chapter.
Note: In Oracle Database 8i, use of subqueries was limited. In Oracle Data-
base 9i and Oracle Database 10g, restrictions are almost...
Tài liệu Oracle SQL Jumpstart with Examples- P8 docx
... ARTIST_COUNTRY=
(SELECT COUNTRY FROM ARTIST A
WHERE A.NAME = T.ARTIST_NAME);
SQL* Plus Worksheet will reply, “13 rows updated.”
Note: Updated rows must comply with any constraints defined for a table.
If one row does ... final section in this chapter discusses the MERGE command, a new
feature of Oracle Database 9i and much improved in Oracle Database 10g.
Figure 15.15
Three Rows Were
De...
Tài liệu Oracle SQL Jumpstart with Examples- P9 ppt
... use of XML directly from
within Oracle SQL. XML is vastly more complex and detailed than pre-
sented in this chapter, both with respect to XML itself and to that of Oracle
software. This chapter ... stored in tables in an Oracle schema. A schema is the Oracle user
that owns the tables. A user and a schema are the same thing as far as Oracle
Database is concerned. An Oracle rela...
Từ khóa: