postgresql数据库批量建数据表

-- Tablespace: post_data2
 
-- DROP TABLESPACE post_data2;
 
CREATE TABLESPACE post_data2
  OWNER postgres
   LOCATION ‘F:\post_data2‘;
 
 ALTER TABLESPACE post_data2
   OWNER TO postgres;

-- FUNCTION: public.create_tables(integer)

-- DROP FUNCTION public.create_tables(integer);

CREATE OR REPLACE FUNCTION public.create_tables(
table_num_in integer)
RETURNS void
LANGUAGE ‘plpgsql‘

COST 100
VOLATILE
AS $BODY$

declare
v_table_num integer :=100;
v_idx integer := 0;
v_strTable varchar :=‘‘;
v_strSql varchar :=‘‘;
begin
while v_idx < table_num_in loop
v_idx = v_idx+1;
v_strTable = CONCAT(‘table_‘, v_idx);
v_strSql = ‘create table ‘||v_strTable||‘(idx integer,log varchar)WITH (OIDS = FALSE);‘;
EXECUTE v_strSql;
end loop;
end

$BODY$;

ALTERFUNCTIONpublic.create_tables(integer)
    OWNER TO postgres;

-- FUNCTION: public.create_tables(integer)

-- DROP FUNCTION public.create_tables(integer);

CREATEORREPLACEFUNCTIONpublic.drop_tables(
    table_num_in integer)
    RETURNS void
    LANGUAGE ‘plpgsql‘

    COST 100
    VOLATILE 
AS $BODY$

declare
v_idx integer :=0;
v_strTable varchar :=‘‘;
v_strSql varchar :=‘‘;
beginwhile v_idx < table_num_in loop
  v_idx = v_idx+1;
  v_strTable = CONCAT(‘table_‘, v_idx);
  v_strSql = ‘drop table ‘||v_strTable;
  EXECUTE v_strSql;
  end loop;
 end

$BODY$;

ALTERFUNCTIONpublic.drop_tables(integer)
    OWNER TO postgres;

-- FUNCTION: public.create_tables(integer)

-- DROP FUNCTION public.create_tables(integer);

CREATE OR REPLACE FUNCTION public.add_tables_data(
    add_times_in integer,
    add_pert_in integer,
    table_num_in integer,
    text_len_in integer)
    RETURNS void
    LANGUAGE ‘plpgsql‘

    COST 100
    VOLATILE 
AS $BODY$

declare
v_idx integer := 0;
v_idx_t integer := 0;
v_strTable varchar :=‘‘;
v_strSql varchar :=‘‘;
begin
    while v_idx < add_times_in loop
    v_idx = v_idx+1;
    while v_idx_t < table_num_in loop
    v_idx_t = v_idx_t+1;
    v_strTable = CONCAT(‘table_‘, v_idx_t);
    v_strSql = ‘insert into ‘||v_strTable||‘(idx,log) select sn,repeat(‘‘a‘‘,‘||text_len_in||‘) from generate_series(0,‘||add_pert_in||‘,1) as sn;‘;
    EXECUTE v_strSql;
    end loop;
  end loop;
end

$BODY$;

ALTER FUNCTION public.add_tables_data(integer,integer,integer,integer)
    OWNER TO postgres;