同一个实用程序pg_dump可以在输出中包含列名。将--inserts改为--column-inserts。这样，您也可以搜索...
用正则表达式替换regex，如果所需的字符串出现在列中，则该表达式为true，并在需要时展开模式列表。查询...
$ psql test# \dt//相当于mysql的,mysql>showtables;psql (12.2)Type "help"forhelp.test=# \dtListofrelationsSchema|Name|Type|Owner---+---+---+---public|cpc_sketch_test|table|csqjxiaopublic|test_table|table|csqjxiao(2rows)test=# \d test_tableTable"public.test_table"Column|Type|Collation...
如果每个schema下的表名都不一样,则所有表名都可以看到DB=#select*frompg_tablesWHEREtablenameNOTLIKE'pg%'ANDtablenameNOTLIKE'sql_%'ORDERBYtablename;--普通用户也能查询到整个数据库下的所有表,标准语句DB=#selecttable_catalog,table_schema,table_name,table_type,is_insertable_into,is_typedfrominformation...
If you use a query to retrieve the source data, hook ?AdfRangePartitionColumnName in the WHERE clause. For an example, see the Parallel copy from Azure Database for PostgreSQL section. No partitionUpperBound The maximum value of the partition column to copy data out. Apply when the partition...
This function can be used to close all open Oracle connections in this session. See theUsagesection for further description. FUNCTION oracle_diag(name DEFAULT NULL) RETURNS text This function is useful for diagnostic purposes only. It will return the versions of oracle_fdw, PostgreSQL server and...
-- Find all events for a single user.-- (A common transactional/operational query)SELECTcreated_at, event_type, repo->>'name'ASrepo_nameFROMgithub_eventsWHEREuser_id =3861633; created_at | event_type | repo_name ---+---+--- 2016-12-01 06:28:44 | PushEvent | sczhengyabin/Google...
IMPORT FOREIGN SCHEMA will create foreign tables for all objects found in ALL_TAB_COLUMNS. That includes tables, views and materialized views, but not synonyms. These are the supported options for IMPORT FOREIGN SCHEMA: case: controls case folding for table and column names during import The poss...
一、背景 为了分析postgresql代码,了解其执行查询语句的过程,我采用eclipse + gdb集成调试环境,在客户端执行一个查询语句,观察分析其执行流程及重要数据结构...
DELETE CASCADE –show you how to automatically delete rows in child tables when the corresponding rows in the parent table are deleted. CHECK constraint –add logic to check value based on a Boolean expression. UNIQUE constraint –ensure that values in a column or a group of columns are unique...