【正文】 Database Connection Information Database server = DB2/LINUX SQL authorization ID = DB2INST1 Local database alias = KMS1 使用指定用戶連接數(shù)據(jù)庫 ， username 是指用戶名， userpw 指用戶密碼。 有關(guān)如何配置遠端數(shù)據(jù)庫德映射請見《 配置助手》 db2 connect to KMS1user username using userpw 斷開 connect 工具發(fā)出的數(shù)據(jù)庫連接 。 db2 connect reset 數(shù)據(jù)庫參數(shù) 數(shù)據(jù)庫創(chuàng)建好之后，可以使用如下命令查看數(shù)據(jù)的各項參數(shù)。 db2 get db cfg for kms1 Database Configuration for Database kms1 Database configuration release level = 0x0a00 Database release level = 0x0a00 Database territory = Database code page = 1386 Database code set = gbk Database country/region code = 86 Dynamic SQL Query management (DYN_QUERY_MGMT) = DISABLE 21 Discovery support for this database (DISCOVER_DB) = ENABLE Default query optimization class (DFT_QUERYOPT) = 5 Degree of parallelism (DFT_DEGREE) = 1 Continue upon arithmetic exceptions (DFT_SQLMATHWARN) = NO Default refresh age (DFT_REFRESH_AGE) = 0 Number of frequent values retained (NUM_FREQVALUES) = 10 Number of quantiles retained (NUM_QUANTILES) = 20 Backup pending = NO Database is consistent = YES Rollforward pending = NO Restore pending = NO Multipage file allocation enabled = NO Log retain for recovery status = NO User exit for logging status = NO Data Links Token Expiry Interval (sec) (DL_EXPINT) = 60 Data Links Write Token Init Expiry Intvl(DL_WT_IEXPINT) = 60 Data Links Number of Copies (DL_NUM_COPIES) = 1 Data Links Time after Drop (days) (DL_TIME_DROP) = 1 Data Links Token in Uppercase (DL_UPPER) = NO Data Links Token Algorithm (DL_TOKEN) = MAC0 Database heap (4KB) (DBHEAP) = 1200 Size of database shared memory (4KB) (DATABASE_MEMORY) = AUTOMATIC Catalog cache size (4KB) (CATALOGCACHE_SZ) = (MAXAPPLS*4) Log buffer size (4KB) (LOGBUFSZ) = 8 Utilities heap size (4KB) (UTIL_HEAP_SZ) = 5000 Buffer pool size (pages) (BUFFPAGE) = 1000 Extended storage segments size (4KB) (ESTORE_SEG_SZ) = 16000 Number of extended storage segments (NUM_ESTORE_SEGS) = 0 Max storage for lock list (4KB) (LOCKLIST) = 100 Max size of appl. group mem set (4KB) (APPGROUP_MEM_SZ) = 30000 Percent of mem for appl. group heap (GROUPHEAP_RATIO) = 70 Max appl. control heap size (4KB) (APP_CTL_HEAP_SZ) = 128 Sort heap thres for shared sorts (4KB) (SHEAPTHRES_SHR) = (SHEAPTHRES) Sort list heap (4KB) (SORTHEAP) = 256 SQL statement heap (4KB) (STMTHEAP) = 2048 Default application heap (4KB) (APPLHEAPSZ) = 256 Package cache size (4KB) (PCKCACHESZ) = (MAXAPPLS*8) Statistics heap size (4KB) (STAT_HEAP_SZ) = 4384 Interval for checking deadlock (ms) (DLCHKTIME) = 10000 Percent. of lock lists per application (MAXLOCKS) = 10 Lock timeout (sec) (LOCKTIMEOUT) = 1 Changed pages threshold (CHNGPGS_THRESH) = 60 Number of asynchronous page cleaners (NUM_IOCLEANERS) = 1 Number of I/O servers (NUM_IOSERVERS) = 3 22 Index sort flag (INDEXSORT) = YES Sequential detect flag (SEQDETECT) = YES Default prefetch size (pages) (DFT_PREFETCH_SZ) = 32 Track modified pages (TRACKMOD) = OFF Default number of containers = 1 Default tablespace extentsize (pages) (DFT_EXTENT_SZ) = 32 Max number of active applications (MAXAPPLS) = AUTOMATIC Average number of active applications (AVG_APPLS) = 1 Max DB files open per application (MAXFILOP) = 64 Log file size (4KB) (LOGFILSIZ) = 1000 Number of primary log files (LOGPRIMARY) = 3 Number of secondary log files (LOGSECOND) = 2 Changed path to log files (NEWLOGPATH) = Path to log files = /home/data/db2inst1/NODE0000/SQL00001/SQLOGDIR/ Overflow log path (OVERFLOWLOGPATH) = Mirror log path (MIRRORLOGPATH) = First active log file = Block log on disk full (BLK_LOG_DSK_FUL) = NO Percent of max active log space by transaction(MAX_LOG) = 0 Num. of active log files for 1 active UOW(NUM_LOG_SPAN) = 0 Group mit count (MINCOMMIT) = 1 Percent log file reclaimed before soft chckpt (SOFTMAX) = 100 Log retain for recovery enabled (LOGRETAIN) = OFF User exit for logging enabled (USEREXIT) = OFF Auto restart enabled (AUTORESTART) = ON Index recreation time (INDEXREC) = SYSTEM (RESTART) Default number of loadrec sessions (DFT_LOADREC_SES) = 1 Number of database backups to retain (NUM_DB_BACKUPS) = 12 Recovery history retention (days) (REC_HIS_RETENTN) = 366 TSM management class (TSM_MGMTCLASS) = TSM node name (TSM_NODENAME) = TSM owner (TSM_OWNER) = TSM password (TSM_PASSWORD) = 可以使用如下命令更改數(shù)據(jù)庫的參數(shù)，在更改數(shù)據(jù)庫參數(shù)之前，首先要斷開數(shù)據(jù)庫的所以連接。它建立一個數(shù)據(jù)庫的連接，并使用日志來把數(shù)據(jù)