array_fill(anyelement, int[], [, int[]])anyarrayreturns an array initialized with supplied value and dimensions, optionally with lower bounds other than 1array_fill(7, ARRAY[3], ARRAY[2])[2:4]={7,7,7} array_length(anyarray, int)intreturns the length of the requested array dimension...
代码语言:javascript 代码运行次数:0 运行 AI代码解释 CREATE [ UNIQUE ] INDEX [ CONCURRENTLY ] [ [ IF NOT EXISTS ] name ] ON [ ONLY ] table_name [ USING method ] ( { column_name | ( expression ) } [ COLLATE collation ] [ opclass [ ( opclass_parameter = value [, ... ] ) ] ...
publicstaticDateTimeFormatDateTime(this DateTime that,stringarg1){ var up = context.Value;if(up.DataType == FreeSql.DataType.PostgreSQL)//重写内容up.Result = $"array_xxx({up.ParsedContent["that"]}, {up.ParsedContent["arg1"]})";returnthat; } } var sql1 = fsql.Select<Model>() .ToSql...
DO $$ DECLARE x int; BEGIN FOREACH x IN ARRAY (ARRAY[[1,2,3],[4,5,6]]) LOOP RAISE NOTICE 'x = %', x; END LOOP; END $$; NOTICE: x = 1 NOTICE: x = 2 NOTICE: x = 3 NOTICE: x = 4 NOTICE: x = 5 NOTICE: x = 6 如果指定了一个正整数的 SLICE,FOREACH 将会变量数组...
Between value1 and value2 ;value1的值比value2值小,表示值在value1和value2之间 is null:表示这个值是空时条件成立 --select * from emp where comm is null; is not null:表示值不为空时条件成立 --查询员工的年薪 Select ‘年薪’, sal*12 from emp; ...
{ "object_not_in_prerequisite_state", ERRCODE_OBJECT_NOT_IN_PREREQUISITE_STATE }, { "object_in_use", ERRCODE_OBJECT_IN_USE }, { "cant_change_runtime_param", ERRCODE_CANT_CHANGE_RUNTIME_PARAM }, { "lock_not_available", ERRCODE_LOCK_NOT_AVAILABLE }, { "unsafe_new_enum_value_usage"...
\gexec execute query, then execute each value in its result \gset [PREFIX] execute query and store results in psql variables \gx [(OPTIONS)] [FILE] as \g, but forces expanded output mode \q quit psql \watch [SEC] execute query every SEC seconds ...
Insert row operation requires to provide explicit value for Primary Key column, even though default/autoincrement value is defined. Usage of the Order By parameter is recommended for Get rows action in order to get deterministic results in the output. If Order By isn't specified, the rows ...
jsonb_set(target jsonb, path text[], new_value jsonb[,create_missing boolean]) target : 这是目的json数据,这里使用内部关联将对应的json查询出来 path : json数据对应的key值 new_value : json数据替换的value值 create_missing : true - 如果不存在对应的key值,则新增,反之,false - 不做其他操作,这...
# name = value # ("="是可选的.)可以使用空格.注释是在一行的任何地方用"#"开头.参数名和允许值的完整列表可以在PostgreSQL文档中找到. # 该文件中显示的注释化设置表示默认值.重新注释设置不足以将其还原为默认值;您需要重新加载服务器. # # 此文件在服务器启动时以及服务器接收到SIGHUP信号时读取.如果...