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f1 := DBE_FILE.FOPEN('dir', 'sample1.txt', 'w'); f2 := DBE_FILE.FOPEN('dir', 'sample2.txt', 'w'); DBE_FILE.CLOSE_ALL(); IF DBE_FILE.IS_CLOSE(f1) = true and DBE_FILE.IS_CLOSE(f2) = true THEN DBE_OUTPUT.PRINT_LINE('f1 and f2 all closed'); END IF; -- Delete
t1 "_REMOTE_TABLE_QUERY_" (cost=0.00..0.00 rows=20 width=12) Node/s: All datanodes -> Hash (cost=0.00..0.00 rows=20 width=12) -> Data Node Scan on t "_REMOTE_TABLE_QUERY_" (cost=0.00..0.00 rows=20 width=12) Node/s: All datanodes (7 rows) Delete
Return type: record pg_stat_get_sql_count() Description: Provides the counts of the SELECT, UPDATE, INSERT, DELETE, and MERGE INTO statements executed on the current node.
date_lt_timestamp date_lt_timestamptz date_mi date_mi_interval date_mii date_ne date_ne_timestamp date_ne_timestamptz date_out date_pl_interval date_pli date_recv date_send date_smaller date_sortsupport daterange_canonical daterange_subdiff datetime_pl datetimetz_pl dcbrt decode defined degrees delete
tab_2(col2 char(3)); openGauss=# insert into tab_2 values(' '); openGauss=# insert into tab_1 select col2 from tab_2; openGauss=# select * from tab_1 where col1 is null; col1 ------ (1 row) openGauss=# select * from tab_1 where col1=' '; col1 ------ (0 rows) openGauss=# delete
If it does, copy its data elsewhere, delete it, and call the copy_error_log_create() function to create the table. For details about columns in the public.pgxc_copy_error_log table, see Table 1.
create table tab_2(col2 char(3)); gaussdb=# insert into tab_2 values(' '); gaussdb=# insert into tab_1 select col2 from tab_2; gaussdb=# select * from tab_1 where col1 is null; col1 ------ (1 row) gaussdb=# select * from tab_1 where col1=' '; col1 ------ (0 rows) gaussdb=# delete
Only simple DELETE statements are supported. For example: DELETE FROM t1 WHERE c1 = ? and c2 = 10; Columns c1 and c2 are index columns, which can be followed by constants or parameters. Only simple UPDATE statements are supported. For example: UPDATE t1 SET c3 = c3+?
datetime_typ_tab; -- Create a table. gaussdb_m=# CREATE TABLE year_typ_tab(col1 year, col2 year(4)); -- Insert data. gaussdb_m=# INSERT INTO year_typ_tab VALUES ('2023', now()); -- View the data. gaussdb_m=# SELECT * FROM year_typ_tab; col1 | col2 ------+------ 2023 | 2023 (1 row) -- Delete
datetime_typ_tab; -- Create a table. gaussdb_m=# CREATE TABLE year_typ_tab(col1 year, col2 year(4)); -- Insert data. gaussdb_m=# INSERT INTO year_typ_tab VALUES ('2023', now()); -- View the data. gaussdb_m=# SELECT * FROM year_typ_tab; col1 | col2 ------+------ 2023 | 2023 (1 row) -- Delete
SM_CARRIER(61,20), SM_CONTRACT(82,20)) header; gaussdb=# COPY tpcds.ship_mode_t1 FROM '/home/omm/ds_ship_mode_fixed.dat' FIXED FORMATTER(SM_SHIP_MODE_SK(0, 2), SM_SHIP_MODE_ID(2,16), SM_TYPE(18,30), SM_CODE(50,10), SM_CARRIER(61,20), SM_CONTRACT(82,20)) header ignore_extra_data; -- Delete
create table tab_2(col2 char(3)); gaussdb=# insert into tab_2 values(' '); gaussdb=# insert into tab_1 select col2 from tab_2; gaussdb=# select * from tab_1 where col1 is null; col1 ------ (1 row) gaussdb=# select * from tab_1 where col1=' '; col1 ------ (0 rows) gaussdb=# delete
Oracle Database: The return value is the number of affected rows for INSERT, UPDATE, and DELETE statements and is meaningless for other statements. 17 EXECUTE_AND_FETCH Function RUN_AND_NEXT Function - 18 FETCH_ROWS Function NEXT_ROW Function - 19 GET_NEXT_RESULT Procedures Not supported
Oracle Database: The return value is the number of affected rows for INSERT, UPDATE, and DELETE statements and is meaningless for other statements. 17 EXECUTE_AND_FETCH Function RUN_AND_NEXT Function - 18 FETCH_ROWS Function NEXT_ROW Function - 19 GET_NEXT_RESULT Procedures Not supported
If the table is not a user table, migrate data to the corresponding table in the pg_catalog schema and delete the table in the original public schema.
If the table is not a user table, migrate data to the corresponding table in the pg_catalog schema and delete the table in the original public schema.
gaussdb_m gaussdb_m=# CREATE TABLE t1(id int DEFAULT 100, name varchar(20) DEFAULT 'tt'); gaussdb_m=# INSERT INTO t1 VALUES(1,'test'); -- Execute the query. gaussdb_m=# SELECT default(id), default(name) FROM t1; default | default ---------+--------- 100 | tt (1 row) -- Delete
gaussdb_m gaussdb_m=# CREATE TABLE t1(id int DEFAULT 100, name varchar(20) DEFAULT 'tt'); gaussdb_m=# INSERT INTO t1 VALUES(1,'test'); -- Execute the query. gaussdb_m=# SELECT default(id), default(name) FROM t1; default | default ---------+--------- 100 | tt (1 row) -- Delete
create table tab_2(col2 char(3)); gaussdb=# insert into tab_2 values(' '); gaussdb=# insert into tab_1 select col2 from tab_2; gaussdb=# select * from tab_1 where col1 is null; col1 ------ (1 row) gaussdb=# select * from tab_1 where col1=' '; col1 ------ (0 rows) gaussdb=# delete
