IBM DB2数据库基础基本命令集合1. 建立数据库DB2_GCBCREATE DATABASE DB2_GCB ON G: ALIAS DB2_GCBUSING CODESET GBK TERRITORY CN COLLATE USING SYSTEM DFT_EXTENT_SZ 322. 连接数据库connect to sample1 user db2admin using 83012063. 建立别名create alias db2admin.tables for sysstat.tables;CREATE ALIAS DB2ADMIN.VIEWS FOR SYSCAT.VIEWScreate alias db2admin.columns for syscat.columns;create alias guest.columns for syscat.columns;4. 建立表create table zjt_tables as(select * from tables) definition only;create table zjt_views as(select * from views) definition only;5. 插入记录insert into zjt_tables select * from tables;insert into zjt_views select * from views;6. 建立视图create view V_zjt_tables as select tabschema,tabname fromzjt_tables;7. 建立触发器CREATE TRIGGER zjt_tables_delAFTER DELETE ON zjt_tablesREFERENCING OLD AS OFOR EACH ROW MODE DB2SQLInsert into zjt_tables1values(substr(o.tabschema,1,8),substr(o.tabname,1,10))8. 建立唯一性索引CREATE UNIQUE INDEX I_ztables_tabnameON zjt_tables(tabname);9. 查看表select tabname from tableswhere tabname='ZJT_TABLES';10. 查看列select SUBSTR(COLNAME,1,20) as 列名,TYPENAME as 类型,LENGTH as 长度from columnswhere tabname='ZJT_TABLES';11. 查看表结构db2 describe table user1.departmentdb2 describe select * from user.tables12. 查看表的索引db2 describe indexes for table user1.department13. 查看视图select viewname from viewswhere viewname='V_ZJT_TABLES';14. 查看索引select indname from indexeswhere indname='I_ZTABLES_TABNAME';15. 查看存贮过程SELECT SUBSTR(PROCSCHEMA,1,15),SUBSTR(PROCNAME,1,15) FROM SYSCAT.PROCEDURES;16. 类型转换(cast)ip datatype:varcharselect cast(ip as integer)+50 from log_comm_failed17. 重新连接connect reset18. 中断数据库连接disconnect db2_gcb19. view applicationLIST APPLICATION;20. kill applicationFORCE APPLICATION(0);db2 force applications all (强迫所有应用程序从数据库断开) 21. lock tablelock table test in exclusive mode22. 共享[锁]lock table test in share mode23. 显示当前用户所有表list tables24. 列出所有的系统表list tables for system25. 显示当前活动数据库list active databases26. 查看命令选项list command options27. 系统数据库目录LIST DATABASE DIRECTORY28. 表空间list tablespaces29. 表空间容器LIST TABLESPACE CONTAINERS FOR Example: LIST TABLESPACE CONTAINERS FOR 130. 显示用户数据库的存取权限GET AUTHORIZATIONS31. 启动实例DB2START32. 停止实例db2stop33. 表或视图特权grant select,delete,insert,update on tables to user grant all on tables to user WITH GRANT OPTION34. 程序包特权GRANT EXECUTEON PACKAGE PACKAGE-nameTO PUBLIC35. 模式特权GRANT CREATEIN ON SCHEMA SCHEMA-name TO USER36. 数据库特权grant connect,createtab,dbadm on database to user37. 索引特权grant control on index index-name to user38. 信息帮助 (? XXXnnnnn )例:? SQL3008139. SQL 帮助(说明 SQL 语句的语法)help statement例如，help SELECT40. SQLSTATE 帮助(说明 SQL 的状态和类别代码)? sqlstate 或 ? class-code41. 更改与"管理服务器"相关的口令db2admin setid username password42. 创建 SAMPLE 数据库db2sampldb2sampl F:(指定安装盘)43. 使用操作系统命令! dir44. 转换数据类型 (cast)SELECT EMPNO, CAST(RESUME AS VARCHAR(370))FROM EMP_RESUMEWHERE RESUME_FORMAT = 'ascii'45. UDF要运行 DB2 Java 存储过程或 UDF，还需要更新服务器上的DB2 数据库管理程序配置，以包括在该机器上安装 JDK 的路径db2 update dbm cfg using JDK11_PATH d:/sqllib/java/jdk TERMINATEupdate dbm cfg using SPM_NAME sample46. 检查 DB2 数据库管理程序配置db2 get dbm cfg47. 检索具有特权的所有授权名SELECT DISTINCT GRANTEE, GRANTEETYPE, 'DATABASE' FROM SYSCAT.DBAUTH UNIONSELECT DISTINCT GRANTEE, GRANTEETYPE, 'TABLE ' FROM SYSCAT.TABAUTH UNIONSELECT DISTINCT GRANTEE, GRANTEETYPE, 'PACKAGE ' FROMSYSCAT.PACKAGEAUTHUNIONSELECT DISTINCT GRANTEE, GRANTEETYPE, 'INDEX ' FROM SYSCAT.INDEXAUTH UNIONSELECT DISTINCT GRANTEE, GRANTEETYPE, 'COLUMN ' FROM SYSCAT.COLAUTH UNIONSELECT DISTINCT GRANTEE, GRANTEETYPE, 'SCHEMA ' FROMSYSCAT.SCHEMAAUTHUNIONSELECT DISTINCT GRANTEE, GRANTEETYPE, 'SERVER ' FROMSYSCAT.PASSTHRUAUTHORDER BY GRANTEE, GRANTEETYPE, 3create table yhdab(id varchar(10),password varchar(10),ywlx varchar(10),kh varchar(10));create table ywlbb(ywlbbh varchar(8),ywmc varchar(60))48. 修改表结构alter table yhdab ALTER kh SET DATA TYPE varchar(13);alter table yhdab ALTER ID SET DATA TYPE varchar(13); alter table lst_bsi alter bsi_money set data type int; insert into yhdab values('20000300001','123456','user01','20000300001'),('20000300002','123456','user02','20000300002');49. 业务类型说明insert into ywlbb values('user01','业务申请'),('user02','业务撤消'),('user03','费用查询'),('user04','费用自缴'),('user05','费用预存'),('user06','密码修改'),('user07','发票打印'),('gl01','改用户基本信息'),('gl02','更改支付信息'),('gl03','日统计功能'),('gl04','冲帐功能'),('gl05','对帐功能'),('gl06','计费功能'),('gl07','综合统计')二. 目录视图说明说明目录视图检查约束 SYSCAT.CHECKS列 SYSCAT.COLUMNS检查约束引用的列 SYSCAT.COLCHECKS关键字中使用的列 SYSCAT.KEYCOLUSE数据类型 SYSCAT.DATATYPES函数参数或函数结果 SYSCAT.FUNCPARMS参考约束 SYSCAT.REFERENCES模式 SYSCAT.SCHEMATA表约束 SYSCAT.TABCONST表 SYSCAT.TABLES触发器 SYSCAT.TRIGGERS用户定义函数 SYSCAT.FUNCTIONS视图 SYSCAT.VIEWS三. 字符串类型二进制大对象 (BLOB) 字符串。