newsqltest file

8274b8e0e7d531c57066a8c9e04d0241a2413b2b · Ovidiu Constantinescu · Oct 8, 2019 14:04
+77 · 1 file changed
graph/db/sqltest2.c +77 −0
diff --git a/graph/db/sqltest2.c b/graph/db/sqltest2.c
new file mode 100644
index 0000000..348b5fd
--- /dev/null
+++ b/graph/db/sqltest2.c
@@ -0,0 +1,77 @@
+#include <stdio.h> // fprintf, printf
+#include "/home/econovi/local/include/sqlite3.h"
+
+  // Set a glbal string that will hold some SQL sample
+  // data
+
+//#define DEBUG
+
+char *sql = "DROP TABLE IF EXISTS Friends;"
+            "CREATE TABLE Friends(Id INTEGER PRIMARY KEY, Name TEXT);"
+            "INSERT INTO Friends(Name) VALUES ('Tom');"
+            "INSERT INTO Friends(Name) VALUES ('Rebecca');"
+            "INSERT INTO Friends(Name) VALUES ('Jim');"
+            "INSERT INTO Friends(Name) VALUES ('Roger');"
+            "INSERT INTO Friends(Name) VALUES ('Robert');";
+
+int main(int argc, char **argv) {
+
+  // 1. Definitions
+  // Each opened SQLite database is represented by a pointer
+  // to an instance of the opaque structure named sqlite3
+  sqlite3 *db;
+
+  // Return code - if the database is opened or created succesfully SQLITE_OK is returned
+  // otherwise an error is returned
+  int rc;
+
+  // This string will hold the english language of the error description
+  char *errmsg;
+
+  // 2. Get the return code from sqlite3_open
+  rc = sqlite3_open(":memory:", &db);
+
+  // Test that the return code is OK
+  if (rc != SQLITE_OK) {
+
+      fprintf(stderr,"Error opening sqlite3 database in memory %s\n",sqlite3_errmsg(db) );
+      fprintf(stderr,"Clearing resoursces used for sqlite3_open\n");
+
+      // Whether or not an error occurs when it is opened,
+      // resources associated with the database connection
+      // handle should be released by passing it to
+      // sqlite3_close() when it is no longer required.
+        sqlite3_close(db);
+        fprintf(stderr,"Database closed.\n");
+
+            // Return error code
+        return -1;
+
+   }
+
+        // Let us know if the database connection was succesfull.
+        printf("Opened database connection succesfully\n");
+
+  //3.Inserting data
+
+#ifdef DEBUG
+  fprintf(stdout,"The SQL statement is: %s\n", sql);
+#endif
+
+
+
+
+
+  // Close the database connection.
+  sqlite3_close(db);
+  return 0;
+
+}
+
+int dbInsert(db) {
+  int rc = sqlite3_exec(db,sql,0,0,&err_msg)
+
+}
+// Read data
+// Update data
+// Delete data