【資料庫】sqlite3常用命令
阿新 • • 發佈：2018-11-05
.table
檢視資料庫所有的表格名稱
.h on
可查看錶中的欄位名
.q
正常退出資料庫
select * from user
獲取user資料表中所有的資料
update user set value='1' where id='0';
將user資料表中 id等於0，欄位名為value的值設定為1
.schema
在沒有引數的情況，它會顯示最初用於建立資料庫的CREATE TABLE和CREATE INDEX的SQL語句
建立資料表，建立一個snmp表，成員如下
struct snmp { int v1_enable; int v2c_enable; char write_community[MAX_LEN_64]; char read_community[MAX_LEN_64]; int v3_enable; char read_security_name[MAX_LEN_64]; int read_level_security;//0=auth,priv 1=auth,no priv 2=no auth,no priv int read_auth_algorithm;//0=MD5 1=SHA char read_auth_password[MAX_LEN_64]; int read_pri_algorithm;//0=DES 1=AES char read_pri_password[MAX_LEN_64]; char write_security_name[MAX_LEN_64]; int write_level_security;//0=auth,priv 1=auth,no priv 2=no auth,no priv int write_auth_algorithm;//0=MD5 1=SHA char write_auth_password[MAX_LEN_64]; int write_pri_algorithm;//0=DES 1=AES char write_pri_password[MAX_LEN_64]; int port; };
CREATE TABLE snmp ("v1_enable" INTEGER, "v2c_enable" INTEGER, "read_community" TEXT NOT NULL, "write_community" TEXT NOT NULL, "v3_enable" INTEGER, "read_name" TEXT NOT NULL, "read_level" INTEGER, "read_auth_type" INTEGER, "read_auth_psw" TEXT NOT NULL, "read_pri_type" INTEGER, "read_pri_psw" TEXT NOT NULL, "write_name" TEXT NOT NULL, "write_level" INTEGER, "write_auth_type" INTEGER, "write_auth_psw" TEXT NOT NULL, "write_pri_type" INTEGER, "write_pri_psw" TEXT NOT NULL, "port" INTEGER); insert into snmp values('0', '0', 'public', 'private', '0', '', '2', '0', '', '0', '', '', '2', '0', '', '0', '', '161');
插入新的資料也可以這樣寫：先把欄位名寫前面，之後用values把所有的資料補充上
insert into vca_people_event(id,enable,tri_alarms,tri_channels_ex) values(0,0,0,'1000000000000000000000000000000000000000000000000000000000000000');
在原有的資料表中插入新的欄位：在network中新增若干欄位
alter table network add column "lan1_ip6_address" TEXT default ""; alter table network add column "lan1_ip6_netmask" TEXT default ""; alter table network add column "lan1_ip6_gateway" TEXT default ""; alter table network add column "lan2_ip6_address" TEXT default ""; alter table network add column "lan2_ip6_netmask" TEXT default ""; alter table network add column "lan2_ip6_gateway" TEXT default ""; alter table network add column "lan1_ip6_dhcp" INTEGER; alter table network add column "lan2_ip6_dhcp" INTEGER; alter table network add column "bond0_ip6_dhcp" INTEGER; alter table network add column "bond0_ip6_address" TEXT default ""; alter table network add column "bond0_ip6_netmask" TEXT default ""; alter table network add column "bond0_ip6_gateway" TEXT default "";