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Apress.Expert.Oracle.Database.Architecture.9i.and.10g.Programming.Techniques.and.Solutions.Sep.2005

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714<br />

■INDEX<br />

job queue coordinator (CJQ0), 179<br />

job queues. See SNPn<br />

JOB_QUEUE_PROCESSES, 646<br />

K<br />

Keep pool, 141, 552<br />

KEYWORDS table, 355<br />

L<br />

L_BUFFER variable, 517<br />

L_BUFFER_LEN variable, 517<br />

L_DESCTBL variable, 697<br />

L_REDO_SIZE variable, 303<br />

L_SESSION_ID variable, 642<br />

L_SOME_VARIABLE, 28<br />

LAG( ) function, 88<br />

Large pool, SGA, 137, 150–51<br />

LARGE_POOL_SIZE parameter, 137, 169<br />

LAST_MOD column, 191–93<br />

latches, 11, 209, 231. See also internal locks<br />

compared to internal locks, 221<br />

latch spinning, 221–22<br />

latching mechanism, 14<br />

measuring cost of latching shared resource,<br />

222–23<br />

with bind variables, 226–28<br />

performance scalability comparison, 228<br />

without bind variables, 223–26<br />

overview, 220–21<br />

LCK0 (lock) process, 178<br />

LCKN (lock process), 178<br />

LDAP (Lightweight Directory Access Protocol)<br />

server, 61<br />

leaf blocks, 424<br />

leaf nodes, 424<br />

legacy dictionary-managed tablespace, 631<br />

legacy init.ora parameter files, 69–71<br />

LENGTHB (length in bytes) function, 501<br />

LGWR (log writer), 56, 140, 175–76, 179, 318<br />

COMMIT statement, 296<br />

focused background processes, 176<br />

synchronous calls to from COMMIT, 297<br />

libraries, <strong>Oracle</strong>, 157<br />

Lightweight Directory Access Protocol (LDAP)<br />

server, 61<br />

list partitioning, 567, 575–77, 581<br />

listener, dedicated server, 61<br />

LMB (lock manager daemon) process, 178<br />

LMON (lock monitor) process, 178<br />

LMSn (lock manager server) process, 178<br />

LMT_AUTO, 634<br />

LMT_UNIFORM, 634<br />

LN (natural log), 512<br />

LOAD DATA option, 651<br />

LOAD_TYPE column, 588<br />

LoadBLOBFromFile entry point, 669<br />

LoadCLOBFromFile entry point, 669<br />

LOADFROMFILE( ) routine, 672<br />

LoadFromFile entry point, 669<br />

LOADFROMFILE function, DBMS_LOB<br />

package, 670<br />

loading <strong>and</strong> unloading data, 649. See also<br />

SQL*Loader (SQLLDR)<br />

Data Pump unload, 701–3<br />

external tables<br />

dealing with errors, 687–88, 690<br />

multiuser issues, 691–92<br />

overview, 680–81<br />

setting up, 682–85, 687<br />

using to load different files, 690<br />

flat file unload, 692–94, 696–701<br />

loading data with embedded newlines, 663<br />

loading dates, 658<br />

loading delimited data, 654<br />

loading fixed format data, 656<br />

loading into LOBS, 669<br />

DBMS_LOB package, 670<br />

Directory object, 670<br />

LOBFILEs, 675<br />

PL/SQL, 669<br />

SQLLDR, 673, 675–76<br />

loading tab-delimited data, 655<br />

OCI programs, 650<br />

overview, 649<br />

LOB locators, 542, 550<br />

lob partition segment type, 340<br />

LOB STORAGE clause, 552–53<br />

LOB_DEMO table, 676<br />

LOBFILEs<br />

loading data into LOBS, 675<br />

TERMINATED BY EOF statement, 675<br />

lobindex, 543, 548<br />

LOBs<br />

BFILEs, 553–54<br />

internal, 541–43<br />

CACHE clause, 552<br />

CHUNK clause, 549<br />

LOB STORAGE clause, 552–53<br />

LOB tablespace, 543–44<br />

PCTVERSION clause, 549–51<br />

RETENTION clause, 551–52<br />

IN ROW clause, 544–46, 548–49<br />

loading<br />

overview, 669<br />

via PL/SQL, 669–71, 673<br />

via SQLLDR, 673–78<br />

overview, 540–41<br />

lobsegment, 548<br />

LOC tab, 656<br />

LOCAL index, 594<br />

local indexes<br />

vs. global indexes, 583<br />

local nonprefixed indexes, 584<br />

local prefixed indexes, 584

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