【数据库】sqlite3常用命令

.table

查看数据库所有的表格名称

.h on

可查看表中的字段名

正常退出数据库

select * from user

获取user数据表中所有的数据

update user set value='1' where id='0';

将user数据表中 id等于0，字段名为value的值设置为1

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.schema

在没有参数的情况，它会显示最初用于创建数据库的CREATE TABLE和CREATE INDEX的SQL语句

创建数据表，创建一个snmp表，成员如下

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');

插入新的数据也可以这样写：先把字段名写前面，之后用values把所有的数据补充上

insert into vca_people_event(id,enable,tri_alarms,tri_channels_ex) values(0,0,0,'1000000000000000000000000000000000000000000000000000000000000000');

在原有的数据表中插入新的字段：在network中新增若干字段

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 "";

【数据库】sqlite3常用命令

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