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display table information. gaussdb=# ANALYZE VERBOSE customer_info; INFO: analyzing "public.customer_info"(cn_5002 pid=53078) INFO: analyzing "public.customer_info" inheritance tree(cn_5002 pid=53078) ANALYZE If any environment-related fault occurs, check the logs of CN. 1 2 3 -- Delete
Operations such as SELECT, UPDATE, INSERT, and DELETE can be performed on XML data. The prerequisite is that you have connected to the database using the connection object conn.
If you want to use EXPLAIN ANALYZE on an INSERT, UPDATE, DELETE, CREATE TABLE AS, or EXECUTE statement without letting the statement affect your data, use this approach: 1 2 3 START TRANSACTION; EXPLAIN ANALYZE ...; ROLLBACK; Syntax Display the execution plan of an SQL statement,
If the UPDATE GLOBAL INDEX clause is not used when you delete, split, merge, clear, or exchange partitions, concurrent DML services may report errors due to invalidated indexes.
In this way, when the DELTAMERGE operation is concurrently performed with the UPDATE or DELETE operation, one operation can be performed only after the previous one is complete. off: The DELTAMERGE operation is concurrently performed with the UPDATE or DELETE operation to the data
Return type: record pgxc_get_sql_count() Description: Provides the counts of the SELECT, UPDATE, INSERT, DELETE, and MERGE INTO statements executed on all the nodes in the entire cluster.
If an existing object references to an object in another schema, you need to manually delete the referenced object first. gs_restore backup/MPPDB_backup.dmp -p 8000 -d testdb -e -c -n PUBLIC Error while PROCESSING TOC: Error from TOC entry 313; 1259 337399 TABLE table1 gaussdba could
In the centralized deployment scenario where the standby node is readable, you must specify the primary node to call functions to create, modify, or delete SQL patches and the standby node to report errors. There is a delay in synchronizing an SQL patch to the standby node.
ON EXAMPLE1 FOR EACH ROW EXECUTE PROCEDURE FUNCTION_TRI_EXAMPLE2(); CREATE TRIGGER gaussdb=# DELETE FROM EXAMPLE1; ERROR: Can not commit/rollback if it's atomic is true: can not use commit rollback in Complex SQL CONTEXT: PL/pgSQL function function_tri_example2() line 7 at COMMIT
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
DROP: allows users to delete a specified object. has_nodegroup_privilege(nodegroup, privilege) Description: Checks whether a user has the permission to access a cluster node.
If the UPDATE GLOBAL INDEX clause is not used when you delete, split, merge, clear, or exchange partitions, concurrent DML services may report errors due to invalidated indexes.
Table 5 Description of permissions Parameter Description r SELECT: allows users to read data from specified tables and views. w UPDATE: allows users to update columns for specified tables. a INSERT: allows users to insert data to specified tables. d DELETE: allows users to delete
Table 5 Description of permissions Parameter Description r SELECT: allows users to read data from specified tables and views. w UPDATE: allows users to update columns for specified tables. a INSERT: allows users to insert data to specified tables. d DELETE: allows users to delete
If this parameter is left empty, an error is reported. amount Length (in bytes for BLOBs) to delete as the IN parameter, or actual length deleted as the OUT parameter.
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.
The result is random and different each time. gaussdb=# SELECT col8 FROM tb_for_masking; col8 -------------------- cf32a9aa427f219ab0 (1 row) gaussdb=# SELECT col8 FROM tb_for_masking; col8 -------------------- 13efa056dda1e1a474 (1 row) Delete data
= nil { log.Fatal(err) } else { fmt.Printf("var1:%v, var2:%v, var3:%v\n", var1, var2, var3) } } Preparing the Encrypted Table // Call the Prepare method of the database instance to create a prepared object. delete_stmt, err := db.Prepare("delete from creditcard_info
Delete the primary key and foreign key constraints of a table. ALTER TABLE DROP [PRIMARY | FOREIGN]KEY - Support the CREATE TABLE... LIKE syntax. CREATE TABLE ... LIKE In versions earlier than MySQL 8.0.16, CHECK constraints are parsed but their functions are ignored.
Delete the primary key constraints of a table. ALTER TABLE - Support the CREATE TABLE ... LIKE syntax. CREATE TABLE ... LIKE In versions earlier than MySQL 8.0.16, CHECK constraints are parsed but their functions are ignored. In this case, CHECK constraints are not replicated.
