下载sqlite3源代码
https://www.sqlite.org/
编译安装sqlite3的Makefile
INSTALL_PATH =/usr/local
all: install
libsqlite3.so: sqlite3.c sqlite3.h
gcc -shared -fPIC $< -o $@
install_lib: libsqlite3.so install_headers
cp libsqlite3.so $(INSTALL_PATH)/lib
ldconfig $(INSTALL_PATH)/lib
install_headers: sqlite3.h sqlite3ext.h
cp $^ $(INSTALL_PATH)/include/
sqlite3: install_lib shell.c
$(CC) shell.c -o $@ -lsqlite3 -lpthread -ldl
install_shell: sqlite3
cp $^ $(INSTALL_PATH)/bin
install: install_lib install_shell
uninstall:
rm -f \
$(INSTALL_PATH)/lib/libsqlite3.so \
$(INSTALL_PATH)/include/sqlite3.h \
$(INSTALL_PATH)/include/sqlite3ext.h \
$(INSTALL_PATH)/bin/sqlite3
clean:
rm -f *.so sqlite3
.PHONY: install install_lib install_headers install_shell clean
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客户端程序
#include <stdio.h>
#include <stdlib.h>
#include <sqlite3.h>
static int callback(void * not_used, int argc, char * argv[], char * col_names[]);
int main(int argc, char * argv[])
{
sqlite3 * db = NULL;
char * zErrMsg = NULL;
if(argc != 3)
{
fprintf(stderr, "Usage: %s DATABASE SQL-STATEMENT\n", argv[0]);
return EXIT_FAILURE;
}
if(sqlite3_open(argv[1], &db) != SQLITE_OK)
{
fprintf(stderr, "Can't open database: %s\n", sqlite3_errmsg(db));
sqlite3_close(db);
return EXIT_FAILURE;
}
if(sqlite3_exec(db, argv[2], callback, NULL, &zErrMsg) != SQLITE_OK)
{
fprintf(stderr, "SQL error: %s\n", zErrMsg);
sqlite3_free(zErrMsg);
}
sqlite3_close(db);
return EXIT_SUCCESS;
}
static int callback(void * not_used, int argc, char * argv[], char * col_names[])
{
for(int i; i < argc; i++)
printf("%s = %s\n", col_names[i], argv[i] ? argv[i] : "NULL");
printf("\n");
return 0;
}
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编译客户端程序的Makefile
all: main
main: main.c
gcc main.c -o main -lsqlite3 -lpthread -ldl
clean:
rm -r main
.PHONY: clean
数据库脚本文件
DROP TABLE main.user;
CREATE TABLE main.user(
Name TEXT,
Age INTEGER
);
INSERT INTO user VALUES('Huo Yun', 27);
INSERT INTO user VALUES('Gao Jingzhuo', 30);