CREATETABLEfoo (fooidint, foosubidint, fooname text);CREATEFUNCTIONgetfoo(int)RETURNSSETOF fooAS$$SELECT*FROMfooWHEREfooid=$1; $$LANGUAGESQL;SELECT*FROMgetfoo(1)ASt1;SELECT*FROMfooWHEREfoosubidIN(SELECTfoosubidFROMgetfoo(foo.fooid) zWHEREz.fooid=foo.fooid );CREATEVIEWvw_getfooASSELECT...
postgres=# create database test;CREATEDATABASEpostgres=# alter database testsettablespace mytbs;ALTERDATABASEpostgres=# \c test You are now connected to database"test"asuser"postgres".test=# create tabletb_mytps(i int,namevarchar(32))tablespace mytbs;CREATETABLE 插入实验数据 代码语言:javascript...
60 */61oidvector proargtypes;/* parameter types (excludes OUT params) */6263#ifdefCATALOG_VARLEN64Oid proallargtypes[1];/* all param types (NULL if IN only) */65char proargmodes[1];/* parameter modes (NULL if IN only) */66text proargnames[1];/* parameter names (NULL if no na...
《PostgreSQL 17 preview - Add EXPLAIN (MEMORY) to report planner memory consumption》 table access method 接口增强: 《PostgreSQL 17 preview - Add support forDEFAULTinALTER TABLE .. SET ACCESS METHOD》 《PostgreSQL 17 preview - 支持修改分区表access method》 《PostgreSQL 17 preview - 寻找undo-based...
SELECTdataFROMpg_logical_slot_get_changes('test_slot',NULL,NULL,'pretty-print','1'); 输出如下所示: SQL { "change": [ ] } { "change": [ { "kind": "insert", "schema": "public", "table": "a_table", "columnnames": ["id", "item"], "columntypes": ["charactervarying(40)"...
SELECTdataFROMpg_logical_slot_get_changes('test_slot',NULL,NULL,'pretty-print','1'); 输出如下所示: SQL { "change": [ ] } { "change": [ { "kind": "insert", "schema": "public", "table": "a_table", "columnnames": ["id", "item"], "columntypes": ["charactervarying(40)"...
ALTER TABLE の問題を修正しました。DROP CONSTRAINT では、制約を削除できなかった場合があります。 TVP SP_EXECSQLが含まれているnot all Parameters have names場合に予期しないエラーが発生する問題を修正しました。 での更新または削除ステートメントの処理に関する問題を修正しましたsp_describe...
Expressionable<Order> exp =newExpressionable<Order>();foreach(variteminnames) { exp.Or(it => it.Name.Contains(item.ToString())); }varlist= db.Queryable<Order>().Where(exp.ToExpression()).ToList(); SELECT[Id],[Name],[Price],[CreateTime],[CustomId]FROM[Order]WHERE( ...
INSERTINTOdest (col)SELECTfoo+barFROMsrc; Here, dest and src must be table names, and col must be a column of dest, but foo and bar might reasonably be either variables of the function or columns of src. By default, PL/pgSQL will report an error if a name in a SQL statement could...
If you have contact data from other tables, you can update the contact names in the customers table based on the data from those tables using the update join statement. Third, modify the contact_name column to add the NOT NULL constraint: ALTER TABLE customers ALTER COLUMN contact_name SET ...