array_to_string(d.datacl, E'\n') AS "Access privileges" FROM pg_catalog.pg_database d ORDER BY 1; *** List of databases Name | Owner | Encoding | Collate | Ctype | Access privileges ---+---+---+---+---+--- postgres | postgres | UTF8 | en_US.UTF-8 | en_US.UTF-8...
I am using objection.js in my application. I'm encountering an issue while trying to insert an array of strings into a PostgreSQL database column. The column is defined as follows: path TEXT[] NOT NULL here is the schema: path: { type: '...
使用条件聚合array_agg(case when... then ... end)时，不匹配的行返回空值，而过滤器只聚合where子...
根据您以后对它们的处理，您可能会考虑使用jsonb_object_agg()。是否建议或甚至可以从多个表中进行选择...
\crosstabview [COLUMNS] 执行查询并且以交叉表显示结果 \errverbose 以最冗长的形式显示最近的错误消息 \g [文件] or; 执行查询 (并把结果写入文件或 |管道) ...省略... \q退出脚本。 \h显示SQL脚本,\h + 命令,可以查看脚本语法: postgres=#
修改array: update tps_game_category set category_name = '快3' where category_level = 4 and code = 'K3'; update tps_game_mobile set category_names = Array['彩票','系统彩票','官方玩法','快3'] where category_first_type = 1;
ARRAY[SIZE] {15|n} AUTO[COMMIT]{ON|OFF|IMM[EDIATE]|n} AUTOP[RINT] {ON|OFF} AUTORECOVERY [ON|OFF] AUTOT[RACE] {ON|OFF|TRACE[ONLY]} [EXP[LAIN]] [STAT[ISTICS]] BLO[CKTERMINATOR] {.|c} CMDS[EP] {;|c|ON|OFF} COLSEP {_|text} ...
Array –show you how to work with arrays and introduce you to some handy functions for array manipulation. hstore –introduce you to the hstore data type, a set of key/value pairs stored in a single value in PostgreSQL. JSON –illustrate how to work with JSON data type and use some of...
2202E array_subscript_error 22021 character_not_in_repertoire 22008 datetime_field_overflow 22012 division_by_zero 22005 error_in_assignment 2200B escape_character_conflict 22022 indicator_overflow 22015 interval_field_overflow 2201E invalid_argument_for_logarithm 22014 invalid_argument_for_ntile_function...
SELECT regexp_split_to_array('the quick brown fox jumps over the lazy dog', E'\\s+'); regexp_split_to_array --- {the,quick,brown,fox,jumps,over,the,lazy,dog} (1 row) 日期、数字、字符串格式化输出 格式化函数 时间、日期格式化样式 时间日期格式化前缀 数字格式化样式 数字格式化前缀 to...