EPSG:4326 — WGS 84

GEOGCRS[
    "WGS 84",
    ENSEMBLE[
        "World Geodetic System 1984 ensemble",
        MEMBER["World Geodetic System 1984 (Transit)",ID["EPSG",1166]],
        MEMBER["World Geodetic System 1984 (G730)",ID["EPSG",1152]],
        MEMBER["World Geodetic System 1984 (G873)",ID["EPSG",1153]],
        MEMBER["World Geodetic System 1984 (G1150)",ID["EPSG",1154]],
        MEMBER["World Geodetic System 1984 (G1674)",ID["EPSG",1155]],
        MEMBER["World Geodetic System 1984 (G1762)",ID["EPSG",1156]],
        MEMBER["World Geodetic System 1984 (G2139)",ID["EPSG",1309]],
        MEMBER["World Geodetic System 1984 (G2296)",ID["EPSG",1383]],
        ELLIPSOID[
            "WGS 84",
            6378137,
            298.257223563,
            LENGTHUNIT["metre",1,ID["EPSG",9001]],
            ID["EPSG",7030]
        ],
        ENSEMBLEACCURACY[2],
        ID["EPSG",6326]
    ],
    CS[ellipsoidal,2,ID["EPSG",6422]],
    AXIS["Geodetic latitude (Lat)",north],
    AXIS["Geodetic longitude (Lon)",east],
    ANGLEUNIT["degree",0.0174532925199433,ID["EPSG",9102]],
    ID["EPSG",4326]
]

+proj=longlat +datum=WGS84 +no_defs +type=crs

proj4.defs("EPSG:4326", "+proj=longlat +datum=WGS84 +no_defs +type=crs");

{
  "type": "CoordinateReferenceSystem",
  "code": 4326,
  "name": "WGS 84",
  "kind": "geographic 2D",
  "area": "World (by country)",
  "unit": "degree (supplier to define representation)",
  "bbox": [
    -90,
    -180,
    90,
    180
  ],
  "proj4": "+proj=longlat +datum=WGS84 +no_defs +type=crs"
}

INSERT INTO spatial_ref_sys (srid, auth_name, auth_srid, proj4text, srtext)
VALUES (4326, 'EPSG', 4326, '+proj=longlat +datum=WGS84 +no_defs +type=crs', 'GEOGCS["WGS 84",DATUM["WGS_1984",SPHEROID["WGS 84",6378137,298.257223563,AUTHORITY["EPSG","7030"]],AUTHORITY["EPSG","6326"]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","4326"]]');

PROJECTION
  "+proj=longlat"
  "+datum=WGS84"
  "+no_defs"
  "+type=crs"
END

4326=GEOGCS["WGS 84",DATUM["WGS_1984",SPHEROID["WGS 84",6378137,298.257223563,AUTHORITY["EPSG","7030"]],AUTHORITY["EPSG","6326"]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","4326"]]