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SQLite training in Houston TX on 2019-11-05 (details)
Part of the 2019 Tcl Conference

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Overview
Comment:In the command-line shell, make sure the output of dot-commands goes to the same redirected output stream as the result of queries. Ticket [2f96536e7ff7dba]
Downloads: Tarball | ZIP archive | SQL archive
Timelines: family | ancestors | descendants | both | trunk
Files: files | file ages | folders
SHA1: b72d365920dbe45e61d8b1cff708a8858c2b3e33
User & Date: drh 2013-05-06 20:28:54
Context
2013-05-06
21:01
In the command-line shell, output the elements of the schema in the order that they appear in the sqlite_master table. This is necessary in some cases to make the schema parsable. check-in: e5b3cd74 user: drh tags: trunk
20:28
In the command-line shell, make sure the output of dot-commands goes to the same redirected output stream as the result of queries. Ticket [2f96536e7ff7dba] check-in: b72d3659 user: drh tags: trunk
14:57
Add an assert() to fts3_expr.c in order to silence a clang warning. check-in: d8dc2c5f user: drh tags: trunk
Changes
Hide Diffs Unified Diffs Ignore Whitespace Patch

Changes to src/shell.c.

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      }
      nPrintCol = 80/(maxlen+2);
      if( nPrintCol<1 ) nPrintCol = 1;
      nPrintRow = (nRow + nPrintCol - 1)/nPrintCol;
      for(i=0; i<nPrintRow; i++){
        for(j=i; j<nRow; j+=nPrintRow){
          char *zSp = j<nPrintRow ? "" : "  ";
          printf("%s%-*s", zSp, maxlen, azResult[j] ? azResult[j] : "");
        }
        printf("\n");
      }
    }
    for(ii=0; ii<nRow; ii++) sqlite3_free(azResult[ii]);
    sqlite3_free(azResult);
  }else

  if( c=='t' && n>=8 && strncmp(azArg[0], "testctrl", n)==0 && nArg>=2 ){
................................................................................

        /* sqlite3_test_control(int, db, int) */
        case SQLITE_TESTCTRL_OPTIMIZATIONS:
        case SQLITE_TESTCTRL_RESERVE:             
          if( nArg==3 ){
            int opt = (int)strtol(azArg[2], 0, 0);        
            rc = sqlite3_test_control(testctrl, p->db, opt);
            printf("%d (0x%08x)\n", rc, rc);
          } else {
            fprintf(stderr,"Error: testctrl %s takes a single int option\n",
                    azArg[1]);
          }
          break;

        /* sqlite3_test_control(int) */
        case SQLITE_TESTCTRL_PRNG_SAVE:           
        case SQLITE_TESTCTRL_PRNG_RESTORE:        
        case SQLITE_TESTCTRL_PRNG_RESET:
          if( nArg==2 ){
            rc = sqlite3_test_control(testctrl);
            printf("%d (0x%08x)\n", rc, rc);
          } else {
            fprintf(stderr,"Error: testctrl %s takes no options\n", azArg[1]);
          }
          break;

        /* sqlite3_test_control(int, uint) */
        case SQLITE_TESTCTRL_PENDING_BYTE:        
          if( nArg==3 ){
            unsigned int opt = (unsigned int)integerValue(azArg[2]);        
            rc = sqlite3_test_control(testctrl, opt);
            printf("%d (0x%08x)\n", rc, rc);
          } else {
            fprintf(stderr,"Error: testctrl %s takes a single unsigned"
                           " int option\n", azArg[1]);
          }
          break;
          
        /* sqlite3_test_control(int, int) */
        case SQLITE_TESTCTRL_ASSERT:              
        case SQLITE_TESTCTRL_ALWAYS:              
          if( nArg==3 ){
            int opt = atoi(azArg[2]);        
            rc = sqlite3_test_control(testctrl, opt);
            printf("%d (0x%08x)\n", rc, rc);
          } else {
            fprintf(stderr,"Error: testctrl %s takes a single int option\n",
                            azArg[1]);
          }
          break;

        /* sqlite3_test_control(int, char *) */
#ifdef SQLITE_N_KEYWORD
        case SQLITE_TESTCTRL_ISKEYWORD:           
          if( nArg==3 ){
            const char *opt = azArg[2];        
            rc = sqlite3_test_control(testctrl, opt);
            printf("%d (0x%08x)\n", rc, rc);
          } else {
            fprintf(stderr,"Error: testctrl %s takes a single char * option\n",
                            azArg[1]);
          }
          break;
#endif

................................................................................
    }else{
      sqlite3_trace(p->db, sql_trace_callback, p->traceOut);
    }
#endif
  }else

  if( c=='v' && strncmp(azArg[0], "version", n)==0 ){
    printf("SQLite %s %s\n" /*extra-version-info*/,
        sqlite3_libversion(), sqlite3_sourceid());
  }else

  if( c=='v' && strncmp(azArg[0], "vfsname", n)==0 ){
    const char *zDbName = nArg==2 ? azArg[1] : "main";
    char *zVfsName = 0;
    if( p->db ){
      sqlite3_file_control(p->db, zDbName, SQLITE_FCNTL_VFSNAME, &zVfsName);
      if( zVfsName ){
        printf("%s\n", zVfsName);
        sqlite3_free(zVfsName);
      }
    }
  }else

#if defined(SQLITE_DEBUG) && defined(SQLITE_ENABLE_WHERETRACE)
  if( c=='w' && strncmp(azArg[0], "wheretrace", n)==0 ){







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      }
      nPrintCol = 80/(maxlen+2);
      if( nPrintCol<1 ) nPrintCol = 1;
      nPrintRow = (nRow + nPrintCol - 1)/nPrintCol;
      for(i=0; i<nPrintRow; i++){
        for(j=i; j<nRow; j+=nPrintRow){
          char *zSp = j<nPrintRow ? "" : "  ";
          fprintf(p->out, "%s%-*s", zSp, maxlen, azResult[j] ? azResult[j] : "");
        }
        fprintf(p->out, "\n");
      }
    }
    for(ii=0; ii<nRow; ii++) sqlite3_free(azResult[ii]);
    sqlite3_free(azResult);
  }else

  if( c=='t' && n>=8 && strncmp(azArg[0], "testctrl", n)==0 && nArg>=2 ){
................................................................................

        /* sqlite3_test_control(int, db, int) */
        case SQLITE_TESTCTRL_OPTIMIZATIONS:
        case SQLITE_TESTCTRL_RESERVE:             
          if( nArg==3 ){
            int opt = (int)strtol(azArg[2], 0, 0);        
            rc = sqlite3_test_control(testctrl, p->db, opt);
            fprintf(p->out, "%d (0x%08x)\n", rc, rc);
          } else {
            fprintf(stderr,"Error: testctrl %s takes a single int option\n",
                    azArg[1]);
          }
          break;

        /* sqlite3_test_control(int) */
        case SQLITE_TESTCTRL_PRNG_SAVE:           
        case SQLITE_TESTCTRL_PRNG_RESTORE:        
        case SQLITE_TESTCTRL_PRNG_RESET:
          if( nArg==2 ){
            rc = sqlite3_test_control(testctrl);
            fprintf(p->out, "%d (0x%08x)\n", rc, rc);
          } else {
            fprintf(stderr,"Error: testctrl %s takes no options\n", azArg[1]);
          }
          break;

        /* sqlite3_test_control(int, uint) */
        case SQLITE_TESTCTRL_PENDING_BYTE:        
          if( nArg==3 ){
            unsigned int opt = (unsigned int)integerValue(azArg[2]);        
            rc = sqlite3_test_control(testctrl, opt);
            fprintf(p->out, "%d (0x%08x)\n", rc, rc);
          } else {
            fprintf(stderr,"Error: testctrl %s takes a single unsigned"
                           " int option\n", azArg[1]);
          }
          break;
          
        /* sqlite3_test_control(int, int) */
        case SQLITE_TESTCTRL_ASSERT:              
        case SQLITE_TESTCTRL_ALWAYS:              
          if( nArg==3 ){
            int opt = atoi(azArg[2]);        
            rc = sqlite3_test_control(testctrl, opt);
            fprintf(p->out, "%d (0x%08x)\n", rc, rc);
          } else {
            fprintf(stderr,"Error: testctrl %s takes a single int option\n",
                            azArg[1]);
          }
          break;

        /* sqlite3_test_control(int, char *) */
#ifdef SQLITE_N_KEYWORD
        case SQLITE_TESTCTRL_ISKEYWORD:           
          if( nArg==3 ){
            const char *opt = azArg[2];        
            rc = sqlite3_test_control(testctrl, opt);
            fprintf(p->out, "%d (0x%08x)\n", rc, rc);
          } else {
            fprintf(stderr,"Error: testctrl %s takes a single char * option\n",
                            azArg[1]);
          }
          break;
#endif

................................................................................
    }else{
      sqlite3_trace(p->db, sql_trace_callback, p->traceOut);
    }
#endif
  }else

  if( c=='v' && strncmp(azArg[0], "version", n)==0 ){
    fprintf(p->out, "SQLite %s %s\n" /*extra-version-info*/,
        sqlite3_libversion(), sqlite3_sourceid());
  }else

  if( c=='v' && strncmp(azArg[0], "vfsname", n)==0 ){
    const char *zDbName = nArg==2 ? azArg[1] : "main";
    char *zVfsName = 0;
    if( p->db ){
      sqlite3_file_control(p->db, zDbName, SQLITE_FCNTL_VFSNAME, &zVfsName);
      if( zVfsName ){
        fprintf(p->out, "%s\n", zVfsName);
        sqlite3_free(zVfsName);
      }
    }
  }else

#if defined(SQLITE_DEBUG) && defined(SQLITE_ENABLE_WHERETRACE)
  if( c=='w' && strncmp(azArg[0], "wheretrace", n)==0 ){