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Importing data from a CSV file

The following example creates a simple comma-separated values (CSV) file and imports its data into a database:

 execute ibeblock
   returns (outstr varchar(100))
   as
   begin

First, let's create a simple CSV-file with some data:

    FS = ibec_fs_OpenFile('C:\MyData.csv', __fmCreate);
    if (not FS is null) then
    begin
      s = '1:John:Doe:M';
      ibec_fs_Writeln(FS, s);
      s = '2:Bill:Gates:M';
      ibec_fs_Writeln(FS, s);
      s = '3:Sharon:Stone:F';
      ibec_fs_Writeln(FS, s);
      s = '4:Stephen:King:M';
      ibec_fs_Writeln(FS, s);
      ibec_fs_CloseFile(FS);
    end

If table IBE$$TEST_PEOPLE exists we'll drop it:

    if (exists(select rdb$relation_name from rdb$relations where rdb$relation_name = 'IBE$$TEST_PEOPLE')) then
    begin
      s = 'DROP TABLE IBE$$TEST_PEOPLE';
      execute statement s;
      commit;
    end

Let's create a new table that will store the imported data:

    s = 'CREATE TABLE IBE$$TEST_PEOPLE (
         ID integer, 
         FIRST_NAME varchar(50),
         LAST_NAME varchar(50),
         SEX varchar(1))';
    execute statement s;
    commit;

    i = 0; (-- Just a counter of inserted records)
    FS = ibec_fs_OpenFile('C:\MyData.csv', __fmOpenRead);
    if (not FS is null) then
    begin
      while (not ibec_fs_Eof(FS)) do
      begin
        s = ibec_fs_Readln(FS);
        ValCount = ibec_ParseCSVLine(Vals, s, , ':', __csvEmptyStringAsNull);
        INSERT INTO IBE$$TEST_PEOPLE (ID, FIRST_NAME, LAST_NAME, SEX) VALUES :Vals;
        commit;
        i = i + 1;
      end
      ibec_fs_CloseFile(FS);
    end

    outstr = i || ' records inserted into IBE$$TEST_PEOPLE';
    suspend;
  end

See also:
Create multiple CSV files from a script
Import CSV Files
INSERTEX (CSV file import)

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